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POTASSIUM METABISULFITE

POTASSIUM METABISULFITE
POTASSIUM METABISULFITE
CAS No.
16731-55-8
Chemical Name:
POTASSIUM METABISULFITE
Synonyms
E224;Dikaliumdisulfit;PubChem ID: 28019;POTASSIUM DISULFITE;POTASSIUM BISULFITE;dipotassiumdisulfite;POTASSIUM METABISULF;POTASSIUM BISULPHITE;POTASSIUM DISULPHITE;POTASSIUMPYROSULPHITE
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
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)
Water Solubility 
Soluble in water. Insoluble in ethanol.
Sensitive 
Air Sensitive
λmax
267nm(H2O)(lit.)
Merck 
14,7645
SAFETY
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
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
Symbol(GHS):
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H318 Causes serious eye damage Serious eye damage/eye irritation Category 1 Danger P280, P305+P351+P338, P310
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405 Store locked up.

POTASSIUM METABISULFITE price More Price(13)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 55777 Potassium disulfite analytical standard 16731-55-8 1g $42 2018-11-13 Buy
Sigma-Aldrich 12619 Potassium disulfite ≥99% (HPLC) 16731-55-8 1kg $108 2018-11-13 Buy
TCI Chemical P2480 Potassium Disulfite >97.0%(T) 16731-55-8 25g $21 2018-11-22 Buy
TCI Chemical P2480 Potassium Disulfite >97.0%(T) 16731-55-8 500g $35 2018-11-22 Buy
Alfa Aesar 043908 Potassium metabisulfite, 95+% 16731-55-8 2kg $292 2018-11-16 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( 165)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Henan DaKen Chemical CO.,LTD.
+86-371-55531817
info@dakenchem.com CHINA 22049 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 20786 55
Hubei Jusheng Technology Co.,Ltd.
86-155-27864001
peter@hubeijusheng.com CHINA 18004 58
Shanghai Zheyan Biotech Co., Ltd.
18017610038
zheyansh@163.com CHINA 3624 58
Meryer (Shanghai) Chemical Technology Co., Ltd. +86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-62670440(Beijing)
+86-(0)21-61259102(Shanghai) +86-(0)755-86170066(ShenZhen) +86-(0)10-88580358(Beijing) sh@meryer.com China 40395 62
Alfa Aesar 400-610-6006; 021-67582000
021-67582001/03/05 saleschina@alfa-asia.com China 30291 84
TCI (Shanghai) Development Co., Ltd. 021-67121386 / 800-988-0390
021-67121385 Sales-CN@TCIchemicals.com China 24648 81
Energy Chemical 021-58432009 / 400-005-6266
021-58436166-800 info@energy-chemical.com China 44187 61
Adamas Reagent, Ltd. 400-600-9262
bxy@titansci.com China 14014 59
Nanjing Chemlin Chemical Co., Ltd 025-83697070
+86-25-83453306 sales@chemlin.com.cn China 19998 64

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