ChemicalBook > CAS DataBase List > POTASSIUM METABISULFITE

POTASSIUM METABISULFITE

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

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 Range
3-4.5 at 22.2 g/l at 25 °C
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.)
Decomposition 
150°C
Merck 
14,7645
EPA Substance Registry System
Disulfurous acid, potassium salt (1:2) (16731-55-8)
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Safety

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
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H318Causes serious eye damage

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P403+P233Store in a well-ventilated place. Keep container tightly closed.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
55777
Product name
Potassium disulfite
Purity
analytical standard
Packaging
1g
Price
$58.7
Updated
2024/03/01
Sigma-Aldrich
Product number
1.05057
Product name
Potassium disulfite
Purity
foranalysisEMSURE?
Packaging
500g
Price
$76.8
Updated
2024/03/01
Sigma-Aldrich
Product number
1.05057
Product name
Potassium disulfite
Purity
foranalysisEMSURE?
Packaging
1kg
Price
$120
Updated
2024/03/01
Sigma-Aldrich
Product number
12619
Product name
Potassium disulfite
Purity
≥99% (HPLC)
Packaging
1kg
Price
$75.2
Updated
2024/03/01
Sigma-Aldrich
Product number
1.05057
Product name
Potassium disulfite
Purity
foranalysisEMSURE?
Packaging
2.5kg
Price
$238
Updated
2024/03/01
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POTASSIUM METABISULFITE Chemical Properties,Usage,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

Potassium Metabisulfite (2:1) is used as a chemical preservative.

Uses

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

General Description

Potassium disulfite (Potassium metabisulfite, PMB) is an inorganic salt with antimicrobial properties. It is a sulfiting agent that prevents browning of foods.

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

POTASSIUM HYDROGEN SULFITE Potassium bicarbonate Potassium bisulfate Potassium sulfate

Preparation Products

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POTASSIUM METABISULFITE Suppliers

Argentina 2 Australia 2 Austria 1 Belgium 5 Brazil 1 Canada 5 China 219 Czech Republic 3 Europe 3 France 5 Germany 13 Hungary 1 India 81 Italy 5 Japan 9 Malaysia 2 Mexico 2 Singapore 1 Slovakia 1 South Korea 1 Spain 2 Switzerland 4 Thailand 1 The Netherlands 1 United Arab Emirates 1 United Kingdom 13 United States 68 USA 1 Global 453
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View Lastest Price from POTASSIUM METABISULFITE manufacturers

Hebei Zhuanglai Chemical Trading Co.,Ltd
Product
Potassium Metabisulfite 16731-55-8
Price
US $180.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
20ton
Release date
2024-05-20
Shandong Deshang Chemical Co., Ltd.
Product
POTASSIUM METABISULFITE 16731-55-8
Price
US $15.00-6.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
10 tons
Release date
2024-08-22
Hebei Weibang Biotechnology Co., Ltd
Product
POTASSIUM METABISULFITE 16731-55-8
Price
US $0.00-0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
500000kg
Release date
2024-10-25

16731-55-8, POTASSIUM METABISULFITERelated Search:

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  • dipotassiumdisulfite
  • dipotassiummetabisulfite
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  • POTASSIUM METABISULFITE REAGENT
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  • Potassium metabisulfite, 95+%
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  • potassium pyrosuifite
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  • E224
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  • Potassium disulfite, extra pure, USP, NF
  • Potassium disulfite, extra pure, NF, Ph Fran, E 224
  • Potassium disulfite/ 95+%
  • POTASSIUM METABISULF
  • PotassiuM Metabisulfite, extra pure, 97% 25GR
  • Potassium metabisulfite,97%,extra pure
  • POTASSIUM DISULFITE FOR ANALYSIS EMSURE
  • Disulfurous acid,potassiuM salt (1:2)
  • Potassium metasulfite
  • PubChem ID: 28019
  • POTASSIUM META-BISULFITE XTL
  • POTASSIUM PYROSULFITE
  • POTASSIUM M-BISULFITE
  • POTASSIUM METABISULFITE
  • POTASSIUM METABISULPHITE
  • POTASSIUM DISULFITE
  • POTASSIUM BISULFITE
  • POTASSIUM BISULPHITE
  • DI-POTASSIUM DISULPHITE
  • DIPOTASSIUM PYROSULFITE
  • POTASIUM METABISULFITE
  • POTASSIUM DISULFITE POWDER, EXTRA PURE, N. F., E 224
  • POTASSIUM DISULFITE POWDER, R. G.
  • PotassiumDisulfitemetabisulphite
  • PotassiumMetabisulphiteFcc
  • PotassiumMetabisulphiteNf
  • PotassiumMetabisulfite97%
  • PotassiumMetabisulphite>95%
  • PotassiumMetabisulphiteGr
  • POTASSIUM PYROSULFITE (K2S2O5)
  • Potassium disulfite >=98%
  • Potassium disulfite puriss., meets analytical specification of Ph.Eur., BP, NF, FCC, E224, 95.0-101.0% (iodometric), powder, 51.8-57.6% sulfur dioxide
  • Potassium disulfite Vetec(TM) reagent grade, 98%
  • POTASSIUM DISULPHITE
  • Potassium metabisulfite, extra pure, 97%
  • Potassium Disulfite 〔Potassium Pyrosulfite〕
  • Potassium Disulfite, Meets analytical specification of Ph.Eur.BP, NF, FCC