ICSC 1585 - POTASSIUM HYDROGEN SULFATE

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POTASSIUM HYDROGEN SULFATE	ICSC: 1585 (April 2013)
Potassium acid sulfate Sulfuric acid monopotassium salt Monopotassium sulfate Potassium bisulfate

CAS #: 7646-93-7

UN #: 2509

EC Number: 231-594-1

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.		In case of fire in the surroundings, use appropriate extinguishing media.

PREVENT DISPERSION OF DUST! AVOID ALL CONTACT!
	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Cough. Sore throat.	Use local exhaust or breathing protection.	Fresh air, rest. Seek medical attention if you feel unwell.
Skin	Redness. Pain. Skin burns.	Protective gloves. Protective clothing.	First rinse with plenty of water for at least 15 minutes, then remove contaminated clothes and rinse again. Refer for medical attention if skin irritation occurs.
Eyes	Redness. Pain. Severe deep burns.	Wear face shield or eye protection in combination with breathing protection.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Ingestion	Sore throat. Abdominal pain. Burning sensation. Shock or collapse.	Do not eat, drink, or smoke during work.	Do NOT induce vomiting. Refer immediately for medical attention.

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Personal protection: chemical protection suit and particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting.	According to UN GHS Criteria Causes severe skin burns and eye damage May cause respiratory irritation Transportation UN Classification UN Hazard Class: 8; UN Pack Group: II
STORAGE
Dry. Separated from strong bases, alcohols, metals and food and feedstuffs.
PACKAGING
Unbreakable packaging. Put breakable packaging into closed unbreakable container.

POTASSIUM HYDROGEN SULFATE

ICSC: 1585

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance COLOURLESS-TO-WHITE HYGROSCOPIC CRYSTALS OR CRYSTALLINE POWDER. Physical dangers Chemical dangers Decomposes on heating. This produces toxic fumes. Reacts with alcohols and water. The solution in water is a medium strong acid. Attacks many metals. This produces flammable/explosive gas (hydrogen - see ICSC 0001).	Formula: KHSO₄ Molecular mass: 136.2 Decomposes at 195-214°C Density: 2.2 g/cm³ Solubility in water, g/100ml: 49 (very good)

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS-TO-WHITE HYGROSCOPIC CRYSTALS OR CRYSTALLINE POWDER.

Physical dangers

Chemical dangers
Decomposes on heating. This produces toxic fumes. Reacts with alcohols and water. The solution in water is a medium strong acid. Attacks many metals. This produces flammable/explosive gas (hydrogen - see ICSC 0001).

Formula: KHSO₄
Molecular mass: 136.2
Decomposes at 195-214°C
Density: 2.2 g/cm³
Solubility in water, g/100ml: 49 (very good)

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation of dust and by ingestion. Effects of short-term exposure The substance is corrosive to the eyes, skin and respiratory tract. Corrosive on ingestion.	Inhalation risk A harmful concentration of airborne particles can be reached quickly when dispersed, especially if powdered. Effects of long-term or repeated exposure

EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation of dust and by ingestion.

Effects of short-term exposure
The substance is corrosive to the eyes, skin and respiratory tract. Corrosive on ingestion.

Inhalation risk
A harmful concentration of airborne particles can be reached quickly when dispersed, especially if powdered.

Effects of long-term or repeated exposure

OCCUPATIONAL EXPOSURE LIMITS

ENVIRONMENT

NOTES
Health effects of exposure to the substance have not been investigated adequately.

ADDITIONAL INFORMATION

EC Classification
Symbol: C; R: 34-37; S: (1/2)-26-36/37/39-45

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