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POTASSIUM METABISULFITE

POTASSIUM METABISULFITE
POTASSIUM METABISULFITE structure
CAS No.
16731-55-8
Chemical Name:
POTASSIUM METABISULFITE
Synonyms
E224;Dikaliumdisulfit;PubChem ID: 28019;POTASSIUM BISULFITE;POTASSIUM DISULFITE;POTASSIUM BISULPHITE;POTASSIUM DISULPHITE;dipotassiumdisulfite;POTASSIUM METABISULF;POTASSIUM M-BISULFITE
CBNumber:
CB5179482
Molecular Formula:
K2O5S2
Formula Weight:
222.32
MOL File:
16731-55-8.mol

POTASSIUM METABISULFITE 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
color 
White to slightly yellow
Specific Gravity
2.3
Odor
Odorless
PH
2.5-4.5 (25℃, 0.1M in H2O)
PH Range
3-4.5 at 22.2 g/l at 25 °C
Water Solubility 
Soluble in water. Insoluble in ethanol.
λmax
267nm(H2O)(lit.)
Sensitive 
Air Sensitive
Decomposition 
150°C
Merck 
14,7645
SCOGS (Select Committee on GRAS Substances)
Potassium metabisulfite
FDA 21 CFR
182.3616; 182.3637; 582.3616; 582.3637
Substances Added to Food (formerly EAFUS)
POTASSIUM METABISULFITE
EWG's Food Scores
1-2
FDA UNII
65OE787Q7W
EPA Substance Registry System
Disulfurous acid, potassium salt (1:2) (16731-55-8)
SAFETY
  • Risk and Safety Statements
Symbol(GHS) 
GHS05,GHS07
Signal word  Danger
Hazard statements  H318-H315-H319-H335
Precautionary statements  P261-P280a-P304+P340-P405-P501a-P280-P305+P351+P338-P305+P351+P338+P310
Hazard Codes  Xi
Risk Statements  31-36/37/38-41
Safety Statements  26-36-39
WGK Germany  1
RTECS  TT4920000
23
TSCA  Yes
HS Code  28322000
Toxicity LD50 orally in Rabbit: 2300 mg/kg
NFPA 704
1
2 1

POTASSIUM METABISULFITE price More Price(15)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 55777 Potassium disulfite analytical standard 16731-55-8 1g $42.9 2019-12-02 Buy
Sigma-Aldrich 12619 Potassium disulfite ≥99% (HPLC) 16731-55-8 1kg $58.9 2019-12-02 Buy
TCI Chemical P2480 Potassium Disulfite >97.0%(T) 16731-55-8 25g $27 2020-06-24 Buy
TCI Chemical P2480 Potassium Disulfite >97.0%(T) 16731-55-8 500g $43 2020-06-24 Buy
Alfa Aesar 043908 Potassium metabisulfite, 95+% 16731-55-8 100g $29.2 2020-06-24 Buy

POTASSIUM METABISULFITE Chemical Properties,Uses,Production

Chemical Properties

White to slightly yellowish fine cryst. powder

Chemical Properties

Potassium metabisulfite occurs as white or colorless free-flowing crystals, crystalline powder, or granules, usually with an odor of sulfur dioxide.

Uses

Potassium Metabisulfite is a chemical preservative and antioxi- dant obtained as white or colorless crystals, powder, or granules. it is soluble in water and insoluble in alcohol. the sulfite salt yields sulfurous acid at a low ph. it is used as a food preservative.

Uses

As antifermentative in breweries and wineries; bleaching straw; preservative for fruits and vegetables.

Pharmaceutical Applications

Potassium metabisulfite is used in applications similar to those of sodium metabisulfite in pharmaceuticals, and in the food, brewing, and wine making industries. It is used as an antioxidant, antimicrobial preservative and sterilizing agent.

Contact allergens

Potassium metabisulfite is an antioxidant used as an antifermentative agent in breweries and wineries, as a preservative of fruits and vegetables, and to bleach straw. Reactions to both sodium and potassium metabisulfite are expected.

Safety Profile

Experimental reproductive effects. A very irritating material. Questionable carcinogen with experimental tumorigenic data. Mutation data reported. When heated to decomposition it emits toxic fumes of SOx and K2SO3. See also SULFITES.

Safety

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.

storage

Potassium metabisulfite should be stored in a cool, dark place. When stored at a maximum temperature of 25°C and maximum relative humidity of 45%, the shelf-life is 6 months. Potassium metabisulfite decomposes at temperatures above 150°C. In the air, it oxidizes to the sulfate, more readily in the presence of moisture.
In aqueous solution, potassium metabisulfite forms potassium bisulfite (KHSO3) which exerts a strong reducing effect.

Incompatibilities

Potassium metabisulfite is incompatible with strong acids, water, and most common metals. It reacts with nitrites and sodium nitrate at room temperature, which occasionally results in the formation of flame. The reaction may be explosive if water is present. Potassium metabisulfite liberates SO2 with acids.
Sulfites, including potassium metabisulfite, can react with various pharmaceutical compounds including sympathomimetics such as epinephrine (adrenaline),chloramphenicol,cisplatin, and amino acids,which can result in their pharmacological inactivation. Sulfites are also reported to react with phenylmercuric nitrate,and may adsorb onto rubber closures.

Regulatory Status

GRAS listed. Accepted in Europe for use as a food additive in certain applications. Included in the FDA Inactive Ingredients Database (IM and IV injection; otic and rectal solutions and suspensions). Included in the Canadian List of Acceptable Nonmedicinal Ingredients.

POTASSIUM METABISULFITE Preparation Products And Raw materials

Raw materials

Preparation Products


POTASSIUM METABISULFITE Suppliers

Global( 198)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Henan DaKen Chemical CO.,LTD.
+86-371-55531817
info@dakenchem.com CHINA 21836 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 22625 55
Shanghai Zheyan Biotech Co., Ltd.
18017610038
zheyansh@163.com CHINA 3623 58
career henan chemical co
+86-371-86658258
sales@coreychem.com CHINA 30043 58
Chemwill Asia Co.,Ltd.
86-21-51086038
86-21-51861608 chemwill_asia@126.com;sales@chemwill.com;chemwill@hotmail.com;chemwill@gmail.com CHINA 23977 58
Hubei Jusheng Technology Co.,Ltd.
86-18871470254
027-59599243 linda@hubeijusheng.com CHINA 28231 58
Haihang Industry Co.,Ltd
86-531-88032799
+86 531 8582 1093 export@haihangchem.com CHINA 10154 58
hdzhl biotechnology co., ltd
86-13032617415
sales@luchibiology.com CHINA 1277 58
Chongqing Chemdad Co., Ltd
+86-13650506873
sales@chemdad.com CHINA 35434 58
Hebei Mojin Biotechnology Co., Ltd
13231137666
admin@hbmojin.com CHINA 350 58

View Lastest Price from POTASSIUM METABISULFITE manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2020-06-24 Potassium metabisulfite
16731-55-8
US $10.00 / Kg/Bag 25T 97.2% 800tons/month Hebei Yanxi Chemical Co., Ltd.
2020-06-23 Potassium metabisulfite
16731-55-8
US $0.00 / KG 1KG 99% 1000tons Hebei Mojin Biotechnology Co., Ltd
2020-05-19 PotassiuM Metabisulfite
16731-55-8
US $1.00 / KG 1KG 99% 20T Shaanxi Dideu Medichem Co. Ltd

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