7789-29-9F.[F-].[K+]VBKNTGMWIPUCRF-UHFFFAOYSA-M7789-29-9DTXSID10894159Potassium bifluoride appears as colorless crystals, corrosive to tissues, etches glass.
Potassium hydrogen fluoride, solution appears as a colorless liquid resulting from dissolution of the solid salt in water. Corrosive to metals and tissue. Used in the electrolytic production of fluorine, and as a metallurgical flux.
Dry Powder; Liquid
Solid; [Merck Index] Colorless solid; [CAMEO] White odorless crystalline powder; [Alfa Aesar MSDS]
Danger
H301: Toxic if swallowed [Danger Acute toxicity, oral];H314: Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
P260, P264, P270, P280, P301+P316, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P321, P330, P363, P405, and P501 (click each P-code to see the statement)
Danger
Chemical: Potassium fluoride (K(HF2))
Potassium fluoride (K(HF2)) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Potassium fluoride (K(HF2)) 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: 23-04-2021 https://echa.europa.eu/registration-dossier/-/registered-dossier/5443
Potassium hydrogen difluoride: 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.)
Corrosive Poison
Corrosive Poison
Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:;Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.). Corrosives in contact with metals may evolve flammable hydrogen gas. Containers may explode when heated. For electric vehicles or equipment, ERG Guide 147 (lithium ion or sodium ion batteries) or ERG Guide 138 (sodium batteries) should also be consulted. (ERG, 2024)
Used in pure potassium fluoride production, silver soldering (flux), alkylation of benzene (catalyst), frosting glass, and to prevent slag formation in coal; [Merck Index]
Soldering [Category: Heat or Machine];Glass Manufacturing [Category: Industry]
Jewelry making [Category: Hobbies]
Electrical Equipment, Appliance, and Component Manufacturing;Transportation Equipment Manufacturing;Computer and Electronic Product Manufacturing;All Other Basic Inorganic Chemical Manufacturing;Machinery Manufacturing;Fabricated Metal Product Manufacturing;Not Known or Reasonably Ascertainable
Potassium fluoride (K(HF2)): ACTIVE
VerwendenPotassium hydrogen fluoride is widely used as an etchant in glass and cleaning products. It finds an important application in the synthesis of special optical glass viz. crown and crown flint glass and as a catalyst for polymerization. It is involved in the manufacturing of wood preservatives, soldering agents and brazing. It is also used in the manufacturing of organic and inorganic fluorine compounds.
Wird geladen…
Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:;Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.). Corrosives in contact with metals may evolve flammable hydrogen gas. Containers may explode when heated. For electric vehicles or equipment, ERG Guide 147 (lithium ion or sodium ion batteries) or ERG Guide 138 (sodium batteries) should also be consulted. (ERG, 2024)
· Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.;· Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.).;· Corrosives in contact with metals may evolve flammable hydrogen gas.;· Containers may explode when heated.;· For electric vehicles or equipment, GUIDE 147 (lithium ion or sodium ion batteries) or GUIDE 138 (sodium batteries) should also be consulted.
· Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.;· Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.).;· Corrosives in contact with metals may evolve flammable hydrogen gas.;· Containers may explode when heated.;· For electric vehicles or equipment, GUIDE 147 (lithium ion or sodium ion batteries) or GUIDE 138 (sodium batteries) should also be consulted.
Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:;TOXIC and/or CORROSIVE; inhalation, ingestion or skin contact with material may cause severe injury or death. Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause environmental contamination. (ERG, 2024)
Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:;TOXIC and/or CORROSIVE; inhalation, ingestion or skin contact with material may cause severe injury or death. Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause environmental contamination. (ERG, 2024)
· TOXIC and/or CORROSIVE; inhalation, ingestion or skin contact with material may cause severe injury or death.;· Contact with molten substance may cause severe burns to skin and eyes.;· Avoid any skin contact.;· Fire may produce irritating, corrosive and/or toxic gases.;· Runoff from fire control or dilution water may be corrosive and/or toxic and cause environmental contamination.
· TOXIC and/or CORROSIVE; inhalation, ingestion or skin contact with material may cause severe injury or death.;· Contact with molten substance may cause severe burns to skin and eyes.;· Avoid any skin contact.;· Fire may produce irritating, corrosive and/or toxic gases.;· Runoff from fire control or dilution water may be corrosive and/or toxic and cause environmental contamination.
Poisonous and corrosive to skin; [Merck Index] Corrosive to tissue; [CAMEO] Highly corrosive to skin, eyes, and mucous membranes; Inhalation can cause corrosive effects on the upper respiratory tract and lungs; Toxic by ingestion; [Alfa Aesar MSDS] See FLUORIDES.
1811 154
3421 154
Salts, Acidic;Fluoride Salts, Soluble
Salts, Acidic;Fluoride Salts, Soluble;Water and Aqueous Solutions
Acidic salts, such as POTASSIUM BIFLUORIDE, are generally soluble in water. The resulting solutions contain moderate concentrations of hydrogen ions and have pH's of less than 7.0. They react as acids to neutralize bases. These neutralizations generate heat, but less or far less than is generated by neutralization of inorganic acids, inorganic oxoacids, and carboxylic acid. They usually do not react as either oxidizing agents or reducing agents but such behavior is not impossible.;Solutions of potassium bifluoride may contain some hydrofluoric acid, which can cause severe chemical burns and is one of the few materials that can etch glass. Unlike other halide ions, fluoride is quite reactive, acting as a weak base and participating in some unique reactions. In particular, fluorides react strongly with compounds containing calcium, magnesium, or silicon ions, which means that solutions containing soluble fluorides are corrosive to both living tissue and glass.
POTASSIUM HYDROGEN FLUORIDE, SOLUTION is acidic. Neutralizes bases in exothermic reactions.;Solutions of potassium hydrogen fluoride may contain some hydrofluoric acid, which can cause severe chemical burns and is one of the few materials that can etch glass. Unlike other halide ions, fluoride is quite reactive, acting as a weak base and participating in some unique reactions. In particular, fluorides react strongly with compounds containing calcium, magnesium, or silicon ions, which means that solutions containing soluble fluorides are corrosive to both living tissue and glass.
Water soluble giving strongly acidic solutions.
No rapid reaction with air. No rapid reaction with water.
Acute Tox. 3 (100%);Acute Tox. 2 (16.4%);Skin Corr. 1B (100%);Eye Dam. 1 (10.2%)
Acute toxicity - category 3;Skin corrosion - category 1B
Corrosives
Acute Tox. 3 *;Skin Corr. 1B
Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:;SMALL FIRE: Dry chemical, CO2 or water spray.;LARGE FIRE: Dry chemical, CO2, alcohol-resistant foam or water spray. If it can be done safely, move undamaged containers away from the area around the fire. Dike runoff from fire control for later disposal.;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)
Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:;SMALL FIRE: Dry chemical, CO2 or water spray.;LARGE FIRE: Dry chemical, CO2, alcohol-resistant foam or water spray. If it can be done safely, move undamaged containers away from the area around the fire. Dike runoff from fire control for later disposal.;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.;· Do not touch damaged containers or spilled material unless wearing appropriate protective clothing.;· Stop leak if you can do it without risk.;· Prevent entry into waterways, sewers, basements or confined areas.;· Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers.;· DO NOT GET WATER INSIDE CONTAINERS.
· 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.;· Do not touch damaged containers or spilled material unless wearing appropriate protective clothing.;· Stop leak if you can do it without risk.;· Prevent entry into waterways, sewers, basements or confined areas.;· Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers.;· DO NOT GET WATER INSIDE CONTAINERS.
Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:;Refer to the "General First Aid" section. 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. (ERG, 2024)
Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:;Refer to the "General First Aid" section. 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. (ERG, 2024)
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.
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.
· 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.
Biological Exposure Indices (BEI) [ACGIH] - Fluorides in urine = 2 mg/L prior to shift or 3 mg/L at end of shift; (Repeated measurements recommended.)
1.0 [mg/m3], inhalable fraction, as F[German Research Foundation (DFG)]
Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:;ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Prevent entry into waterways, sewers, basements or confined areas. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS. (ERG, 2024)
Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:;ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Prevent entry into waterways, sewers, basements or confined areas. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS. (ERG, 2024)
Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:;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)
Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:;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.
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.
1.2 [mg/m3]
13 [mg/m3]
79 [mg/m3]
Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:;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. (ERG, 2024)
Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:;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. (ERG, 2024)
Small Fire;· Dry chemical, CO2 or water spray.;Large Fire;· Dry chemical, CO2, alcohol-resistant foam or water spray.;· If it can be done safely, move undamaged containers away from the area around the fire.;· Dike runoff from fire control for later disposal.;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.
Small Fire;· Dry chemical, CO2 or water spray.;Large Fire;· Dry chemical, CO2, alcohol-resistant foam or water spray.;· If it can be done safely, move undamaged containers away from the area around the fire.;· Dike runoff from fire control for later disposal.;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.
Chemical: Potassium fluoride (K(HF2))
Potassium fluoride (K(HF2)) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Potassium fluoride (K(HF2)) 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: 23-04-2021 https://echa.europa.eu/registration-dossier/-/registered-dossier/5443
Potassium hydrogen difluoride: 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.)