potassium metabisulfite food grade

Brief Description
CAS No.: 16731-55-8 Other Names: potassium metabisulfite MF: K2S2O5
Place of Origin: Hunan China (Mainland) Type: Anesthetic Agents, Anti-Allergic Agents, ... Grade Standard: Feed Grade, Food Grade, Tech Gr...
Usage: Animal Pharmaceuticals Purity: 98% Appearance: crystalline powder
Molecular formula: K2S2O5=222.326 name: potassium metabisulphite 
Delivery Terms & Packaging
Packaging Detail:25kg per woven bag, linned with plastic bag, or by user's request.
Delivery Detail:two weeks upon receipt of advance payment
Specifications
potassium metabisulfite food grade

potassium metabisulfite food grade
1.manufacture factory
2.High quality and competitive price
3.Fast delivery

1.>Name: potassium metabisulfite food grade

 molecular formula: K2S2O5=222.326 
molecular weight: 222.33 
CAS Number: 16731-55-8

2.>Product characteristics

The Product was colorless crystal or white crystalline powder with the relative density of 2.34 .The melting point was 150-190oC(decomposition). 

The product had a flavor of sulfur dioxide and soluble in water with acidic aqueous solution, it was not soluble in ethanol.

3.>Product usage

the product was used for the preparation of photographic developing solution, which was also used as food bleaching agents, preservatives, antioxidants .In addition, it could be used to retain freshness of wine, fruit juice, beer clarifying agent, fruits and vegetables, meat , grapes, as well as the non-cyanide silver plating.

4.>Packing

25kg per woven bag, linned with plastic bag,

or by user's request.

5.>specification


Test item

Unit

Specification

Test method

K2S2O5

g/100g

97.2

Acc.Fcc IV p.322

SO2

g/100g

56.0

calculation

K2S2O3

g/100g

 0.1

ISO 3629-1996(E)

Na

g/100g

 2

AAS

Cl

g/kg

 0.5

IC

pH-value(10%solution)

-

3.8-4.8

RCA/Q-S-066

heavy metal(measured by Pb)

mg/kg

10

AAS

As

mg/kg

 1

AAS

Cu

mg/kg

1

ICP-AES

Fe

mg/kg

5

ICP-AES

Hg

mg/kg

0.1

AAS(cold vapour)

Pb

mg/kg

1

ICP-AES

Se

mg/kg

1

AAS

Zn

mg/kg

1

ICP-AES

K2SO3 +K2SO4

mg/kg

excess material

calculation

 

6.>Features and Advantages

We are professional chemical products manufacturer in China for 10 years.

Our factory location are closely connected with JINGGUANG railroad and JINGZHU highway,which is very beneficial to us to save time and freight to export.
Both of them make our products has comprehensive competition. 

7.>our company and factory.