Kaliumhydrogensulfit

Potassium bisulfite solution is a colorless aqueous with a slight sulfur dioxide odor. Used as a reducing agent and chemical preservative.

Clear colourless aqueous solution

White, crystalline powder; [HSDB]

Warning

H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]

P261, P264+P265, P271, P280, P304+P340, P305+P351+P338, P319, P337+P317, P403+P233, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 7 reports by companies from 2 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Status: Active Update: 20-12-2022 https://echa.europa.eu/registration-dossier/-/registered-dossier/24822

Sulfurous acid, monopotassium salt: Does not have an individual approval but may be used as a component in a product covered by a group standard. It is not approved for use as a chemical in its own right.

A case of occupational asthma, confirmed by specific inhalation challenge, was reported in a worker whose job was to sprinkle dry metabisulfite on potatoes. [Malo JL, Cartier A, Desjardins A. Occupational asthma caused by dry metabisulphite. Thorax 1995 May;50(5); 585-6.] Similar cases have been reported in the wine, laundry, and lobster fishing industries. [Madsen J, Sherson D, Kjoller H, Hansen I, Rasmussen K. Occupational asthma caused by sodium disulphite in Norwegian lobster fishing. Occup Environ Med 2004;61:873-874] See SULFITES.

This substance is generally recognized as safe when used as a chemical preservative in accordance with good manufacturing practice, except that it is not used in meats; in food recognized as a source of vitamin B1; on fruits and vegetables intended to be served raw to consumers or sold raw to consumers, or to be presented to consumers as fresh.

This substance is generally recognized as safe when used as a chemical preservative in accordance with good manufacturing or feeding practice, except that it is not used in meats or in food recognized as a source of vitamin B1.

/GUIDE 154: SUBSTANCES - TOXIC AND/OR CORROSIVE (NON-COMBUSTIBLE)/ Health: TOXIC; 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. Effects of contact or inhalation may be delayed. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution. /Bisulfites, inorganic, aqueous solution, NOS/

/GUIDE 154: SUBSTANCES - TOXIC AND/OR CORROSIVE (NON-COMBUSTIBLE)/ Fire or Explosion: 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.). Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated. /Bisulfites, inorganic, aqueous solution, NOS/

/GUIDE 154: SUBSTANCES - TOXIC AND/OR CORROSIVE (NON-COMBUSTIBLE)/ Public Safety: CALL Emergency Response Telephone Number ... . 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. /Bisulfites, inorganic, aqueous solution, NOS/

/GUIDE 154: SUBSTANCES - TOXIC AND/OR CORROSIVE (NON-COMBUSTIBLE)/ 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. /Bisulfites, inorganic, aqueous solution, NOS/

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

SRP: At the time of review, criteria for land treatment or burial (sanitary landfill) disposal practices are subject to significant revision. Prior to implementing land disposal of waste residue (including waste sludge), consult with environmental regulatory agencies for guidance on acceptable disposal practices.

WHEN INGESTED, SOLUTIONS CAUSE GASTRIC IRRITATION BY LIBERATION OF SULFUROUS ACID. /SULFITE SALTS/

...SULFITES ARE WELL TOLERATED UNTIL LARGE DOSES ARE REACHED; THEN VIOLENT COLIC AND DIARRHEA, CIRCULATORY DISTURBANCES, CENTRAL NERVOUS DEPRESSION, & DEATH ARE DESCRIBED. /SULFITE SALTS/

/SRP:/ Basic treatment: Establish a patent airway. Suction if necessary. Watch for signs of respiratory insufficiency and assist ventilations if necessary. Administer oxygen by nonrebreather mask at 10 to 15 L/min. Monitor for pulmonary edema and treat if necessary ... . Anticipate seizures and treat if necessary ... . For eye contamination, flush eyes immediately with water. Irrigate each eye continuously with normal saline during transport ... . Do not use emetics. For ingestion, rinse mouth and administer 5 m1/kg up to 200 ml of water for dilution if the patient can swallow, has a strong gag reflex, and does not drool ... . Administer activated charcoal ... . Cover skin burns with dry sterile dressings after decontamination ... . /Sulfur and related compounds/

/SRP:/ Advanced treatment: Consider orotracheal or nasotracheal intubation for airway control in the patient who is unconscious. Early intubation at the first sign of upper airway obstruction may be necessary. Monitor cardiac rhythm and treat arrhythmias if necessary ... . Start an IV with D5W /SRP: "To keep open", minimal flow rate/. Use lactated Ringer's if signs of hypovolemia are present. Watch for signs of fluid overload. Consider drug therapy for pulmonary edema ... . Treat seizures with diazepam (Valium) ... . For hypotension with signs of hypovolemia, administer fluid cautiously. Consider vasopressors for hypotension with a normal fluid volume. Watch for signs of fluid overload ... . Use proparacaine hydrochloride to assist eye irrigation ... . /Sulfur and related compounds/

This substance is generally recognized as safe when used as a chemical preservative in accordance with good manufacturing practice, except that it is not used in meats; in food recognized as a source of vitamin B1; on fruits and vegetables intended to be served raw to consumers or sold raw to consumers, or to be presented to consumers as fresh.

This substance is generally recognized as safe when used as a chemical preservative in accordance with good manufacturing or feeding practice, except that it is not used in meats or in food recognized as a source of vitamin B1.

Used to preserve food, to reduce organic compounds, to bleach straw and textiles, to add sulfurous acid in brewing, to tan leather, and to disinfect; [Hawley]

Textiles (Fiber & Fabric Manufacturing) [Category: Industry]

Chem preservative in food, except meats and other sources of vitamin B1. Reduction of various organic compounds; purification of aldehydes and ketones; source of sulfurous acid.

CHEM INT FOR POTASSIUM METABISULFITE & SULFUROUS ACID; ANTIMICROBIAL AGENT IN FOODS; ANTISEPTIC AGENT; BLEACHING AGENT FOR STRAW & TEXTILE FIBERS; AGENT TO PURIFY ALDEHYDES, KETONES, IODINE, & SODIUM HYDROSULFIDE; REDUCING AGENT FOR ORG COMPOUNDS; TANNING CHEM

(1972) No Data

(1975) No Data

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(1975) No Data

REACTION OF SULFUR DIOXIDE & POTASSIUM CARBONATE

Sulfur dioxide is passed through a solution of potassium carbonate until no more carbon dioxide is given off; soln is concentrated and allowed to crystallize.

Food additives

Food Additives -> ANTIOXIDANT; PRESERVATIVE -> JECFA Functional Classes