Sodium Metabisulfite Industrial Grade Used for Bleaching Agent of Bamboo

• CAS No.: 7681-57-4
• Formula: Na2s2o5
• EINECS: 231-673-0
• Certification: ISO
• Purity: 90%~99%
• Type: Sodium Sulfate
• Model NO.: industrial grade
• Appearance: Powder
• Grade Standard: Industrial Grade
• Transport Package: PP/PE Wovon Bag
• Specification: 96.5%
• Trademark: TAINUO
• Origin: China
• HS Code: 2832100000
• Production Capacity: 5000mt/Year

Product Description

Product Description
 

Sodium metabisulfite industrial grade used for bleaching agent of bamboo


 

1. Description

Name	Sodium Metabisulfite
Molecular formula	Na2S2O5
Molecular weight	190.09
Executive standard	HG/T 2826-2008
CAS NO.	7681-57-4
EINECS NO.	231-673-0
Appearance	White or yellowish crystal powder
Density	1.48g/cm^3
Melting point	170ºC
Odor	Strong SO2 odor
Solubility	Soluble in water and acidic in aqueous solution
Property	When exposed to strong acid,it emits SO2 to form corresponding salts.When exposed to air for a long time,it oxidizes to Na2S2O4,so the product can not last forever.SO2 is decomposed when the temperature is higher than 1500ºC.

 

    2.Specification

Item	Index
	Superior quality	First class
Main content(Na2S2O4),% ≥	96.5	95
Iron(Fe),% ≤	0.005	0.01
Water-insoluble,% ≤	0.05	0.05
Arsenic(As) ,% ≤	0.0001	---

     
       3. Uses
1)  Printing and dyeing mordant
2)  Antichlor in after fabric bleaching
3)  Chemical and medicine reducer and sulfonating agent
4)  Bleaching agent of bamboo
5)  Wood and paper fiber
6)  Nonferrous metal dressing agent
7)  Waste water finishing agent
8)  Rubber coagulator
9)  Alkyl spice aldeheyde in spice industry
10)  Depilating agent
11)  Softening agent and anti-wear agent in leather industry
12)  Reducer of developer and protective agent of fixative in sensitization industry

       4.Packing and Transport
Packing:25/50/1000kg bag
Transport: should be protected from rain and sunlight.It is strictly prohibited to store and transport with acids,oxidants and harmful and toxic substances.
Storage: Should be stored in a dry,clean warehouse.The package should be sealed to prevent air oxidation.Guard against moisture.



Company Information