Benzenesulfonyl chloride

1.3842 at 59 °F (USCG, 1999) - Denser than water; will sink

SP GR: 1.3842 AT 15 °C/15 °C

1.384 @ 15°C

greater than 233.6 °F (USCG, 1999)

Flash point > 233 °F

484.7 °F at 760 mmHg (USCG, 1999)

177 °C AT 100 MM HG; 120 °C AT 10 MM HG; DECOMP 251-252 °C AT 760 MM HG

58.1 °F (USCG, 1999)

14.5 °C

14.5 °C

0.06 [mmHg]

0.068 [mm Hg] @25 °C

Benzenesulfonyl chloride appears as a colorless to slightly yellow solid that melts at approximately 40 °F. Very irritating to skin, eyes and mucous membranes. May emit toxic fumes when heated to high temperatures. Used to make dyes and other chemicals.

Liquid

Clear, oily liquid; [HSDB]

Danger

H302 (98.7%): Harmful if swallowed [Warning Acute toxicity, oral]；H314 (100%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]；H317 (27.7%): May cause an allergic skin reaction [Warning Sensitization, Skin]；H318 (27%): Causes serious eye damage [Danger Serious eye damage/eye irritation]；H319 (14.5%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]；H332 (27%): Harmful if inhaled [Warning Acute toxicity, inhalation]；H334 (27.7%): May cause allergy or asthma symptoms or breathing difficulties if inhaled [Danger Sensitization, respiratory]

P233, P260, P261, P264, P264+P265, P270, P271, P272, P280, P284, P301+P317, P301+P330+P331, P302+P352, P302+P361+P354, P304+P340, P305+P351+P338, P305+P354+P338, P316, P317, P321, P330, P333+P317, P337+P317, P342+P316, P362+P364, P363, P403, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 159 reports by companies from 17 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.；Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.

Chemical: Benzenesulfonyl chloride

Benzenesulfonyl chloride is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Benzenesulfonyl chloride are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)

Status: Active Update: 21-01-2022 https://echa.europa.eu/registration-dossier/-/registered-dossier/13859

Benzenesulphonyl chloride: Does not have an individual approval but may be used under an appropriate group standard

The New Jersey Worker and Community Right to Know Act requires public and private employers to provide information about hazardous substances at their workplaces. (N.J.S.A. 34:5A-1 et. seq.)

Special Hazards of Combustion Products: May contain highly toxic and irritating hydrogen chloride and oxides of chlorine and sulfur.；Behavior in Fire: Cylinder may explode. Decomposes to produce highly toxic chlorine and sulfur compounds. Reacts with hot water to produce highly toxic and corrosive hydrochloric acid and benzenesulfonic acid. (USCG, 1999)

· Combustible material: may burn but does not ignite readily.；· Substance will react with water (some violently) releasing flammable, toxic or corrosive gases and runoff.；· When heated, vapors may form explosive mixtures with air: indoors, outdoors and sewers explosion hazards.；· Most vapors are heavier than air. They will spread along the ground and collect in low or confined areas (sewers, basements, tanks, etc.).；· Vapors may travel to source of ignition and flash back.；· Corrosives in contact with metals may evolve flammable hydrogen gas.；· Containers may explode when heated or if contaminated with water.

May be fatal if inhaled, swallowed or absorbed through skin. Contact may cause skin and eye burns. Irritating to eyes, skin and mucous membranes. INGESTION: May cause abdominal spasm and vomiting. (USCG, 1999)

· TOXIC and/or CORROSIVE; inhalation, ingestion or contact (skin, eyes) with vapors, dusts or substance may cause severe injury, burns or death.；· Contact with molten substance may cause severe burns to skin and eyes.；· Reaction with water or moist air may release toxic, corrosive or flammable gases.；· Reaction with water may generate much heat that will increase the concentration of fumes in the air.；· Fire will produce irritating, corrosive and/or toxic gases.；· Runoff from fire control or dilution water may be corrosive and/or toxic and cause environmental contamination.

Corrosive to skin; [Quick CPC] Liver damage has been reported in workers after skin exposure; liver injury also occurs in high-dose animal studies; [HSDB] Can cause irritation of the respiratory tract and at higher concentrations pulmonary edema; [NJ-HSFS] Can cause burns to skin and eyes; A skin, eye, and mucous membrane irritant; [CAMEO]

The major hazards encountered in the use and handling of benzenesulfonyl chloride stems from its toxicologic properties. Toxic by all routes (ie, inhalation, ingestion, and dermal contact), exposure to this colorless, oily liquid may occur from its manufacture and use as a catalyst, an intermediate in the production of phenols,amides, insecticides, miticides, and acaricides, and as a reagent for Friedel-Crafts sulfonation. Effects from exposure may include contact burns to the skin and eyes, and liver damage. In activities and situations where over-exposure may occur, wear a positive pressure self-contained breathing apparatus, and chemical protective clothing which has been specifically recommended by the shipper or manufacturer. If contact should occur, immediately irrigate exposed eyes with copious amounts of tepid water for at least 15 minutes, and wash exposed skin thoroughly with soap and water. Remove contaminated clothing and shoes at the site. While benzenesulfonyl chloride does not ignite easily, it may burn with the production of poisonous gases. Runoff from fire control water may cause pollution. For fires involvin g benzenesulfonyl chloride, extinguish with dry chemical, CO2, water spray, fog, or regular foam. Small spills of this substance may be taken up with sand or other noncombustible absorbent and placed into containers for later disposal. Large spills should first be diked far ahead of the spill. Benzenesulfonyl chloride is a potential candidate for liquid injection or rotary kilnforms of incineration.

U020; As stipulated in 40 CFR 261.33, when benzenesulfonyl chloride as a commercial chemical product or manufacturing chemical intermediate or an off-specification commercial chemical product or a manufacturing chemical intermediate, becomes a waste, it must be managed according to Federal and/or State hazardous waste regulations. Also defined as a hazardous waste is any residue, contaminated soil, water, or other debris resulting from the cleanup of a spill, into water or on dry land, of this waste. Generators of small quantities of this waste may qualify for partial exclusion from hazardous waste regulations (40 CFR 261.5).

Pursuant to section 8(d) of TSCA, EPA promulgated a model Health and Safety Data Reporting Rule. The section 8(d) model rule requires manufacturers, importers, and processors of listed chemical substances and mixtures to submit to EPA copies and lists of unpublished health and safety studies. Benzenesulfonyl chloride is included on this list.

BENZENESULFONYL CHLORIDE is incompatible with strong oxidizing agents and bases, including amines. Corrodes metals in the presence of water due to slow formation of hydrochloric acid and benzenesulfonic acid (USCG, 1999). May react vigorously or explosively if mixed with diisopropyl ether or other ethers in the presence of trace amounts of metal salts [J. Haz. Mat., 1981, 4, 291].

/GUIDE 156: SUBSTANCES - TOXIC and/or CORROSIVE (Combustible/Water-Sensitive)/ Fire or Explosion: Combustible material: may burn but does not ignite readily. Substance will react with water (some violently) releasing flammable, toxic or corrosive gases and runoff. When heated, vapors may form explosive mixtures with air: indoors, outdoors and sewers explosion hazards. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapors may travel to source of ignition and flash back. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated or if contaminated with water.

/GUIDE 156: SUBSTANCES - TOXIC and/or CORROSIVE (Combustible/Water-Sensitive)/ Health: TOXIC; inhalation, ingestion or contact (skin, eyes) with vapors, dusts or substance may cause severe injury, burns or death. Contact with molten substance may cause severe burns to skin and eyes. Reaction with water or moist air will release toxic, corrosive or flammable gases. Reaction with water may generate much heat that will increase the concentration of fumes in the air. Fire will produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution.

/GUIDE 156: SUBSTANCES - TOXIC and/or CORROSIVE (Combustible/Water-Sensitive)/ Public Safety: CALL Emergency Response Telephone Number on Shipping Paper first. If Shipping Paper not available or no answer, refer to appropriate telephone number listed on the inside back cover. As an immediate precautionary measure, isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids. Keep unauthorized personnel away. Stay upwind. Keep out of low areas. Ventilate enclosed areas.

/GUIDE 156: SUBSTANCES - TOXIC and/or CORROSIVE (Combustible/Water-Sensitive)/ Protective Clothing: Wear positive pressure self-contained breathing apparatus (SCBA). Wear chemical protective clothing that is specifically recommended by the manufacturer. It may provide little or no thermal protection. Structural firefighters' protective clothing provides limited protection in fire situations ONLY; it is not effective in spill situations where direct contact with the substance is possible.

For more DOT Emergency Guidelines (Complete) data for BENZENESULFONYL CHLORIDE (8 total), please visit the HSDB record page.

Excerpt from ERG Guide 156 [Substances - Toxic and/or Corrosive (Combustible / Water-Sensitive)]:；Note: Most foams will react with the material and release corrosive/toxic gases. CAUTION: For Acetyl bromide (UN1716), use CO2 or dry chemical only.；SMALL FIRE: CO2, dry chemical, dry sand, alcohol-resistant foam.；LARGE FIRE: Water spray, fog or alcohol-resistant foam. FOR CHLOROSILANES, DO NOT USE WATER; use alcohol-resistant foam. If it can be done safely, move undamaged containers away from the area around the fire. Avoid aiming straight or solid streams directly onto the product.；FIRE INVOLVING TANKS, RAIL TANK CARS OR HIGHWAY TANKS: Fight fire from maximum distance or use unmanned master stream devices or monitor nozzles. Do not get water inside containers. Cool containers with flooding quantities of water until well after fire is out. Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank. ALWAYS stay away from tanks in direct contact with flames. (ERG, 2024)

· CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper not available or no answer, refer to appropriate telephone number listed on the inside back cover.；· Keep unauthorized personnel away.；· Stay upwind, uphill and/or upstream.；· Ventilate closed spaces before entering, but only if properly trained and equipped.

· ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area.；· All equipment used when handling the product must be grounded.；· Do not touch damaged containers or spilled material unless wearing appropriate protective clothing.；· Stop leak if you can do it without risk.；· A vapor-suppressing foam may be used to reduce vapors.；· FOR CHLOROSILANES, use alcohol-resistant foam to reduce vapors.；· DO NOT GET WATER on spilled substance or inside containers.；· Use water spray to reduce vapors or divert vapor cloud drift. Avoid allowing water runoff to contact spilled material.；· Prevent entry into waterways, sewers, basements or confined areas.；Small Spill；· Cover with DRY earth, DRY sand or other non-combustible material followed with plastic sheet to minimize spreading or contact with rain.；· Use clean, non-sparking tools to collect material and place it into loosely covered plastic containers for later disposal.

INHALATION: Move victim to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.；EYES OR SKIN: Flush with running water for at least 15 min.; hold eyelids open if necessary. Wash skin with soap and water. Remove and isolate contaminated clothing and shoes at the site. Maintain normal body temperature and keep victim quiet. Keep victim under observation for delayed effects.；INGESTION: If unconscious or having convulsions, do nothing except keep victim warm. (USCG, 1999)

General First Aid:；· Call 911 or emergency medical service.；· Ensure that medical personnel are aware of the material(s) involved, take precautions to protect themselves and avoid contamination.；· Move victim to fresh air if it can be done safely.；· Administer oxygen if breathing is difficult.；· If victim is not breathing:；-- DO NOT perform mouth-to-mouth resuscitation; the victim may have ingested or inhaled the substance.；-- If equipped and pulse detected, wash face and mouth, then give artificial respiration using a proper respiratory medical device (bag-valve mask, pocket mask equipped with a one-way valve or other device).；-- If no pulse detected or no respiratory medical device available, provide continuous compressions. Conduct a pulse check every two minutes or monitor for any signs of spontaneous respirations.；· Remove and isolate contaminated clothing and shoes.；· For minor skin contact, avoid spreading material on unaffected skin.；· In case of contact with substance, remove immediately by flushing skin or eyes with running water for at least 20 minutes.；· For severe burns, immediate medical attention is required.；· Effects of exposure (inhalation, ingestion, or skin contact) to substance may be delayed.；· Keep victim calm and warm.；· Keep victim under observation.；· For further assistance, contact your local Poison Control Center.；· Note: Basic Life Support (BLS) and Advanced Life Support (ALS) should be done by trained professionals.；Specific First Aid:；· For corrosives, in case of contact, immediately flush skin or eyes with running water for at least 30 minutes. Additional flushing may be required.

· Wear positive pressure self-contained breathing apparatus (SCBA).；· Wear chemical protective clothing that is specifically recommended by the manufacturer when there is NO RISK OF FIRE.；· Structural firefighters' protective clothing provides thermal protection but only limited chemical protection.

Excerpt from ERG Guide 156 [Substances - Toxic and/or Corrosive (Combustible / Water-Sensitive)]:；ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area. All equipment used when handling the product must be grounded. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. A vapor-suppressing foam may be used to reduce vapors. FOR CHLOROSILANES, use alcohol-resistant foam to reduce vapors. DO NOT GET WATER on spilled substance or inside containers. Use water spray to reduce vapors or divert vapor cloud drift. Avoid allowing water runoff to contact spilled material. Prevent entry into waterways, sewers, basements or confined areas.；SMALL SPILL: Cover with DRY earth, DRY sand or other non-combustible material followed with plastic sheet to minimize spreading or contact with rain. Use clean, non-sparking tools to collect material and place it into loosely covered plastic containers for later disposal. (ERG, 2024)

Generators of waste (equal to or greater than 100 kg/mo) containing this contaminant, EPA hazardous waste number U020, must conform with USEPA regulations in storage, transportation, treatment and disposal of waste.

A potential candidate for liquid injection incineration at a temperature range of 650 to 1,600 °C and a residence time of 0.1 to 2 seconds. A potential candidate for rotary kiln incineration at a temperature range of 820 to 1,600 °C and residence times of seconds for liquids and gases, and hours for solids.

Excerpt from ERG Guide 156 [Substances - Toxic and/or Corrosive (Combustible / Water-Sensitive)]:；IMMEDIATE PRECAUTIONARY MEASURE: Isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids.；SPILL: Increase the immediate precautionary measure distance, in the downwind direction, as necessary.；FIRE: If tank, rail tank car or highway tank is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2024)

Immediate precautionary measure；· Isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids.；Spill；· For highlighted materials: see Table 1 - Initial Isolation and Protective Action Distances.；· For non-highlighted materials: increase the immediate precautionary measure distance, in the downwind direction, as necessary.；Fire；· If tank, rail tank car or highway tank is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions.

0.77 [mg/m3]

8.4 [mg/m3]

51 [mg/m3]

· Note: Most foams will react with the material and release corrosive/toxic gases.；CAUTION: For Acetyl bromide (UN1716), use CO2 or dry chemical only.；Small Fire；· CO2, dry chemical, dry sand, alcohol-resistant foam.；Large Fire；· Water spray, fog or alcohol-resistant foam.；· FOR CHLOROSILANES, DO NOT USE WATER; use alcohol-resistant foam.；· If it can be done safely, move undamaged containers away from the area around the fire.；· Avoid aiming straight or solid streams directly onto the product.；Fire Involving Tanks, Rail Tank Cars or Highway Tanks；· Fight fire from maximum distance or use unmanned master stream devices or monitor nozzles.；· Do not get water inside containers.；· Cool containers with flooding quantities of water until well after fire is out.；· Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank.；· ALWAYS stay away from tanks in direct contact with flames.

TERRESTRIAL FATE: If benzenesulfonyl chloride is released to soil, it will be expected to rapidly hydrolyze if the soil is moist, based upon a half-life of 5.1 min at 21 °C(SRC). Since it rapidly hydrolyzes, adsorption to and volatilization from moist soil are not expected to be significant processes, although no data specifically regarding the fate of benzenesulfonyl chloride in soil were located(SRC). Based upon an estimated vapor pressure of 0.068 mm Hg at 25 deg(2,SRC), volatilization from dry near-surface soil or other surfaces may be significant processes(SRC).

AQUATIC FATE: If benzenesulfonyl chloride is released to water, it will be expected to rapidly hydrolyze with a half-life of 5.1 min at 21 °C(1,SRC). Since it rapidly hydrolyzes, bioconcentration, volatilization, and adsorption to sediment and suspended solids are not expected to be significant processes(SRC). No data were located concerning biodegradation, but benzenesulfonyl chloride probably chemically hydrolyzes significantly faster than it biodegradates(SRC). Direct photolysis is not expected to be an important removal process in surface waters(2,SRC).

ATMOSPHERIC FATE: If benzenesulfonyl chloride is released to the atmosphere, it will be expected to exist almost entirely in the vapor phase(1) based upon an estimated vapor pressure of 0.068 mm Hg at 25 °C(2,SRC). It will be susceptible to photooxidation via vapor phase reaction with photochemically produced hydroxyl radicals. An atmospheric half-life of 7.9 days at an atmospheric concentration of 5X10+5 hydroxyl radicals per cu cm has been calculated for this process based upon an estimated rate constant(3,SRC). Hydrolysis of benzenesulfonyl chloride in moist air may be significant based upon its rapid hydrolysis in aqueous solution(4,SRC). Direct photolysis is not expected to be an important removal process in the atmosphere(5,SRC).

Occupational hepatotoxin - Secondary hepatotoxins: the potential for toxic effect in the occupational setting is based on cases of poisoning by human ingestion or animal experimentation.；Dermatotoxin - Skin burns.；Toxic Pneumonitis - Inflammation of the lungs induced by inhalation of metal fumes or toxic gases and vapors.

PERCUTANEOUS ABSORPTION WHICH CAN OCCUR ON MUCOUS MEMBRANES HAS BIOLOGICAL EFFECT ON SKIN & RESULTS IN REVERSIBLE TOXIC DAMAGE TO LIVER; 3 SUCH CASES ARE DESCRIBED. 2 PATIENTS EXPERIENCED VERY SEVERE SHOCK WHICH WAS BROUGHT UNDER CONTROL AFTER 1 TO 1.5 HR. POSSIBILITY THAT IMMEDIATE TYPE ALLERGIC REACTION OCCURS IS DISCUSSED.

Benzenesulfony chloride may be released to the environmet as a result of its manufacture and use as a catalyst and as an intermediate in the production of phenol and other organic chemicals(1). Benzenesulfonyl chloride has been used in the Friedel-Crafts sulfonylation of benzene(2).

No data were located concerning the biodegradation of benzenesulfonyl chloride either in natural systems or in laboratory studies(SRC). Since benzenesulfonyl chloride rapidly hydrolyzes in water(1,SRC), biodegradation probably will not be an important process in the environment(SRC).

Due to a lack of data, it is not possible to estimate the half-life for volatilization from water or soil. Since benzenesulfonyl chloride rapidly hydrolyzes in water(1), however, volatilization from water and moist soil are not expected to be significant(SRC). Based upon an estimated vapor pressure of 0.068 mm Hg at 25 °C(2,SRC), volatilization of benzenesulfonyl chloride from surfaces and near-surface dry soil may be significant processes(SRC).

The measured overall rate constant for hydrolysis of benzenesulfonyl chloride in a 1% aqueous dioxane solution at 21 °C is 2.25X10-3 sec-1(1) which corresponds to a half-life of 5.1 min(1,SRC). The calculated half-life for hydrolysis at 10 °C is 12.9 min(1,SRC). The products of hydrolysis are benzenesulfonic acid and hydrogen chloride(SRC). The rate constant for the vapor phase reaction of benzenesulfonyl chloride with photochemically produced hydroxyl radicals has been estimated to be 2.04X10-12 cu cm/molecule-sec at 25 °C which corresponds to an atmospheric half-life of 7.9 days at an atmospheric concentration of 5X10+5 hydroxyl radicals per cu cm (2,SRC). Direct photolysis is not expected to be a significant removal process since the compound absorbs very little light at wavelengths above 290 nm(3).

Exposure to benzenesulfonyl chloride will be primarily occupational via inhalation and possibly dermal contact. (SRC)

NIOSH (NOES Survey 1981-1983) has statistically estimated that 851 workers are potentially exposed to benzenesulfonyl chloride in the USA(1). NIOSH (NOHS Survey 1972-1974) has statistically estimated that 194 workers are potentially exposed to benzenesulfonyl chloride in the USA(2).

Chemical: Benzenesulfonyl chloride

Benzenesulfonyl chloride is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Benzenesulfonyl chloride are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)

Status: Active Update: 21-01-2022 https://echa.europa.eu/registration-dossier/-/registered-dossier/13859

Benzenesulphonyl chloride: Does not have an individual approval but may be used under an appropriate group standard

The New Jersey Worker and Community Right to Know Act requires public and private employers to provide information about hazardous substances at their workplaces. (N.J.S.A. 34:5A-1 et. seq.)

U020; As stipulated in 40 CFR 261.33, when benzenesulfonyl chloride as a commercial chemical product or manufacturing chemical intermediate or an off-specification commercial chemical product or a manufacturing chemical intermediate, becomes a waste, it must be managed according to Federal and/or State hazardous waste regulations. Also defined as a hazardous waste is any residue, contaminated soil, water, or other debris resulting from the cleanup of a spill, into water or on dry land, of this waste. Generators of small quantities of this waste may qualify for partial exclusion from hazardous waste regulations (40 CFR 261.5).

Pursuant to section 8(d) of TSCA, EPA promulgated a model Health and Safety Data Reporting Rule. The section 8(d) model rule requires manufacturers, importers, and processors of listed chemical substances and mixtures to submit to EPA copies and lists of unpublished health and safety studies. Benzenesulfonyl chloride is included on this list.

Persons in charge of vessels or facilities are required to notify the National Response Center (NRC) immediately, when there is a release of this designated hazardous substance, in an amount equal to or greater than its reportable quantity of 100 lb or 45.4 kg. The toll free number of the NRC is (800) 424-8802; In the Washington D.C. metropolitan area (202) 426-2675. The rule for determining when notification is required is stated in 40 CFR 302.4 (section IV. D.3.b).

Used as a chemical intermediate; [HSDB]

CHEM INT FOR BENZENE SULFONAMIDES, THIOPHENOL, GLYBUZOLE (HYPOGLYCEMIC AGENT), N-2-CHLOROETHYL AMIDES, BENZONITRILE; FOR ITS ESTERS-USEFUL AS INSECTICIDES, MITICIDES; FOR FENSON ACARICIDE (FORMER USE).

Benzenesulfonyl chloride is a reagent for Friedel-Crafts sulfonylation.

Benzenethiol is produced on a commercial scale by the red phosphorus reduction of benzenesulfonyl chloride.

(1979) 1.96X10+8 GRAMS (PRINCPL CUSTMS DISTS)

(1981) 2.12X10+8 GRAMS (PRINCPL CUSTMS DISTS)

2023: 1,000,000 - <8,500,000 lb；2022: 1,000,000 - <8,500,000 lb；2021: 1,000,000 - <8,500,000 lb；2020: 1,000,000 - <8,500,000 lb

(1979) PROBABLY GREATER THAN 4.54X10+6 GRAMS

(1981) PROBABLY GREATER THAN 4.54X10+6 GRAMS

... FROM BENZENE & CHLOROSULFONIC ACID OR FROM THE SODIUM SALT OF BENZENESULFONIC ACID & /PHOSPHORUS PENTACHLORIDE/ PCL5 OR /PHOSPHORUS OXYTRICHLORIDE/ POCL3.

REACTION OF BENZENESULFONIC ACID WITH PHOSPHORUS PENTACHLORIDE; REACTION OF SODIUM BENZENESULFONATE WITH PHOSPHORUS PENTACHLORIDE OR PHOSPHORUS OXYCHLORIDE; REACTION OF BENZENE WITH CHLOROSULFONIC ACID.

Plastics Product Manufacturing；Oil and Gas Drilling, Extraction, and Support activities；All Other Chemical Product and Preparation Manufacturing

Benzenesulfonyl chloride: ACTIVE