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Guangzhou Tianyie Chemical Co., Ltd.
Guangzhou Tianyie Chemical Co., Ltd. Trustworthy Caustic Soda Supplier In China.
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China Sulphate Sodium metabisulfite (Tech Grade) Cas 7681-57-4 factory

China Sulphate Sodium metabisulfite (Tech Grade) Cas 7681-57-4 factory

Place of Origin : China
Brand Name : Tianyie
Certification : ISO 9001-2008
MOQ : 25MTs
Packaging Details : 25kg plastic bags, or as per buyers' requirement
Delivery Time : within 20 days after receipt of your deposit or LC
Payment Terms : TT. LC, WESTERN UNION
Supply Ability : 2200MTS per month
Price : Negotiable
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China Sulphate Sodium metabisulfite (Tech Grade) Cas 7681-57-4 factory
Quick Details
Classification: SulphateType: Sodium MetabisulfiteCAS No.: 7681-57-4
Other Names: metabisulfiteMF: Na2S2O5EINECS No.: 231-673-0
Place of Origin: China (Mainland)Grade Standard: Food Grade, Industrial GradePurity: 96%,97%
Appearance: White Free white crystalline powderApplication: printing & dyeing; as dechlorinati...

Specifications

Sodium Metabisulphite(Tech Grade)
Na2S2O5: 96% min
SO2: 65% min
Packing:in 25/50/1000kg PP/PE bags

Sodium metabisulfite Industry grade


Property: white or light yellow crystal powder, a strong smell of sulfur dioxide,relative density is 1.4,

easy to dissolve in water and glycerin, water solution. It has acidity,and its solubility will become large while

raising the temperature and is less to dissolve in ethanol.


Molecular Formula :Na2S2O5

Molecule Weight :190.12

CAS NO .:7681-57-4

Appearance :White Free white crystalline powder

Packing:Packed in 25kg plastic woven bag, 25kg Kraft paper bag, 25kg PE bag,

500kg/1000kg/1100kg/1200kg jumbo bag or as per the buyer's requirement.


Specification :


Quality standard:

National standard


Molecular formula:

Na2S2O5

Relative molecular weight:

190.10

Property:

It is white or yellowish crystalline powder with strong SO2 odor; specific wt.: 1.4. soluble in water, its aqueous solution is acidic.

Use:

Mainly used in printing & dyeing; as dechlorinating agent for textile bleaching; as reducing agent and sulfonating agent for chemical and medical industries, food activities etc.


Item

Specification

Test result

Remarkes

Sodium metabisulfite

97min.

97.83%


Sulfur Dioxide(SO2)

65%max.

65.78%


Arsenic(As)

0.0002%max

0.00011%


Selenium(Se)

0.0005%max

0.00009%


Heavy Metals(As Pb)

0.0005%max

0.0003%


water Insoluble

0.02%max

0.016%


Iron(Fe)

0.002%max

0.001%


PH Value

4.0-4.8

4.4




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