KEMSKY CHEMCAL CO.,LIMITED
5 1

Na2S2O5 97% Purity Sodium Metabisulfite Preservative For Leather Tanning Industry

Contact Now* Send an Inquiry to this supplier.
or
Start Order * Name your price

Contact us

KEMSKY CHEMCAL CO.,LIMITED
[China]

Address
Chemical industrial park, Yueyang city, Hunan province, China Ningbo Zhejiang
Phone
86-139-75090964
Contact name
CHEMCAL

Quick Information

  • Brand Name: Kemsky
  • Place of Origin: China
  • Model Number : smbs

Description

 

SODIUM METABISULFITE  FOOD GRADE

 

1.Grade Food grade
2.Purity 97%
3.Molecular formula Na2S2O5
5. CAS No 7681-57-4
6. HS CODE 28321000
7. EINECS No 231-673-0

 

Nature:

 

white or light yellow crystalline powder , relative density is 1.4 . Soluble in

water (when20 ° C, 54g/100ml water; when 100 ° C, 81.7g/100ml water),

acidic aqueous solution. Soluble in glycerine, slightly soluble in ethanol.

Moisture easily decomposed, exposed in the air easily oxidized into

sulfate. Exposure to emit sulfur dioxide and acid generated the corresponding

salts. Heated to 150 ° C decomposition.

 

Usage:

 

Pharmaceutical industry for the production of chloroform, benzene, styrene
sulfone, and formaldehyde. Rubber industry as a coagulant. Bleached cotton
printing and dyeing industry as the dechlorination agent, cotton scouring agent.
Leather tanning industry for processing, make the leather soft, plump, tough,
waterproof, bending, wear and other properties. The chemical industry for the
production of vanillin hydroxyl, hydroxylamine hydrochloride and so on.
Sensitive industries such as reagent. The food industry as a bleaching agent,
preservatives, leavening agent, antioxidant, color agents and the insurance agent.
According to China GB2760-86 provides that: as a preservative for the wine, the
greatest use of 0.25g/kg; as bleaching agent for glucose, sugar, bamboo, rattan
and other mushrooms, no more than 0.45g/kg; residue (SO2 total), bamboo shoots,
mushrooms are not allowed more than 0.025k/kg.

 

Specification:

 

Sodium metabisulfite food grade

Item Chinese standard Company standard
GB1893-2008
Main content(Na2S2O5) ≥96.5 ≥97.5
Fe(As content Fe) ≤0.003 ≤0.0015
Clarity Pass test Clear
Heavy metal content (Pb) ≤0.0005 ≤0.0002
Arsenic content (As) ≤0.0001 ≤0.0001

 

 


Sodium metabisulfite industrial grade

 

Item

Chinese standard Company standard
  HG/T2826-2008  
  Top-grade First grade  
Main content(Na2S2O5) ≥96.5 ≥95.0 ≥97.0
Fe %( Fe) ≤0.005 ≤0.010 ≤0.002
Water-Insoluble ≤0.05 ≤0.05 ≤0.02
Arsenic(As) content ≤0.0001 / ≤0.0001

 

 

 

10. Packing : External packing is PP woven bag, Internal packing is PE bag,25 kgs, 50 kgs, 1000 kgs, and 1250 kgs bag packing.

11. Storage & defence: Stored in cool and dry place, avoid moisture and heat. No breakage, No mixed with oxidant and toxic matter. The storage period is 6 month since the production date. It should be transported by clean car, with covering matter, avoid rain.

 


Product Image

  • Na2S2O5 97% Purity Sodium Metabisulfite Preservative For Leather Tanning Industry image

Send an Inquiry to this supplier

Send an Inquiry to this supplier
* From
  To CHEMCAL
KEMSKY CHEMCAL CO.,LIMITED
* Buying Product
- Please enter your specific buying item.
e.g. 42 inch LCD TV, leather executive chair
Category : Saccharide
* Message

Use English only Max. 2000 characters. (Min. 20)

Send
EC21.com does not guarantee the validity of product information or the credentials of sellers.