POTASSIUM METABISULFITE manufacturers and suppliers

POTASSIUM METABISULFITE suppliers

Properties

Melting point:: 190°C

Density: 2.34 g/cm³

vapor density: 2.3 (vs air)

storage temp.: Store at +5°C to +30°C.

solubility: H₂O: 0.1 M at 20 °C, clear, colorless

form: Powder/Solid

Specific Gravity: 2.3

color: White to slightly yellow

PH: 2.5-4.5 (25℃, 0.1M in H2O)

Odor: Odorless

PH Range: 3-4.5 at 22.2 g/l at 25 °C

Water Solubility: Soluble in water. Insoluble in ethanol.

Sensitive: Air Sensitive

Decomposition: 150°C

λmax: 267nm(H2O)(lit.)

Merck: 14,7645

EPA Substance Registry System: Disulfurous acid, potassium salt (1:2) (16731-55-8)

Safety Information

Symbol(GHS): GHS05,GHS07

Signal word: Danger

Hazard statements: H318-H335

Precautionary statements: P261-P271-P280-P304+P340+P312-P305+P351+P338-P403+P233

Hazard Codes: Xi

Risk Statements: 31-36/37/38-41

Safety Statements: 26-36-39

WGK Germany: 1

RTECS: TT4920000

F: 23

TSCA: Yes

HS Code: 28322000

Hazardous Substances Data: 16731-55-8(Hazardous Substances Data)

Toxicity: LD50 orally in Rabbit: 2300 mg/kg

Use

Potassium metabisulfite is used in a variety of foods and pharmaceutical preparations, including oral, otic, rectal, and parenteral preparations. Potassium metabisulfite is considered a very irritating material, and may cause dermatitis on exposed skin.Hypersensitivity reactions to potassium metabisulfite and other sulfites, mainly used as preservatives in food products, have been reported. Reactions include bronchospasm and anaphylaxis; some deaths have also been reported, especially in those with a history of asthma or atopic allergy.These reactions have led to restrictions by the FDA on the use of sulfites in food applications. However, this restriction has not been extended to their use in pharmaceutical applications. Indeed, epinephrine (adrenaline) injections used to treat severe allergic reactions may contain sulfites. The WHO has set an acceptable daily intake of sulfites, as SO2, at up to 0.35 mg/kg body-weight.

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