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Middle East B2B Directory - Sodium metabisulphite, Product by Changsha Haolin Chemicals Co., Ltd.
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Product Details

Sodium metabisulphite

Changsha Haolin Chemicals Co., Ltd.
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Product Description:
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1:Product Introduction

Product name: Sodium Metabisulfite

Other name: sodium pyrosulfite, sodium metabisulphite, disodium metabisulfite, disodium

pyrosulfite ,sodium disulfite

CAS No.:7681-57-4 EINECS No.:231-673-0

Molecular formula: Na2S2O5 Molecular weight: 190.10

HS Code:28321000



Physical & Chemical properties:

Sodium metabisulfite is white or yellow crystalline powder or crystals, with a strong smell of

SO2, specific gravity is 1.4, soluble in water, acidic aqueous solution, contact with strong acids

are released SO2 and generate the corresponding salts, for a long time in the air and oxidized

to Na2S2O6, Products can't long-term exposed to the air. Higher than 150℃ Namely, after the decomposition get SO2. soluble in water, acidic aqueous solution. Soluble

in glycerin, slightly soluble in ethanol.





2:Quality Indexes



Items
Indexes (%) Industrial Grade
Indexes (%) Food Grade

Purity
96.5%
97.0%

SO2
65%min
65%min

As
5 ppm max
5 ppm max

Fe
50ppm max
50 ppm max

Pb
10 ppm max
10 ppm max

Cd
10 ppm max
10 ppm max

Water Insolubles
0.05%max
0.05%max

PH
4-5
4-5

Conclusion: conform with the GB1893-2000 standard

3:Application

1. Pharmaceutical industry: for the production of chloroform, sulfetrone and benzaldehyde

2. Rubber industry: as curing agent

3. Printing and dyeing industry: for cotton fabric bleach dechlorinating agent and cotton scouring

agent

4. Leather industry: for leather processing, making the leather soft, full, tensile to have the

properties of water proof, flexural strength, wear resistance.

5. Chemical industry: for the production of hydroxycitronellal, hydroxylamine hydrochloride

6. Food industry: as the bleaching agent, preservative, leavening agent, antioxidant ect.

E:jane@haolinchem. com
Skype: jane. hu261
w:www. haolinchem. com
Other Details:

Offered by: Changsha Haolin Chemicals Co., Ltd. (View Showroom, Create your own Showroom)
Place of Origin: China (More Products from China)
Stock Location: China
Quantity: Not Specified
Packaging: Not Specified
Price: Not Specified
Product Seller Classification: Chemicals - Inorganic Chemicals
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