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CONTACT US
Company: Choice Chemicals Ltd.
Address: Centre of City, No.235 Wuyi Road, Furong District, Changsha, Hunan Province 410011, P.R.China
Fax: 0086 731 89878447
E-mail: info@choice-chem.com
Sodium Sulfite
Information
|
Appearance |
White crystalline powder |
|
CAS No. |
7757-83-7 |
|
EINECS |
231-821-4 |
|
H.S.CODE |
2832100000 |
|
Molecular Formula |
Na2SO3 |
Quality Standard
|
Item |
Industrial Grade |
Food Grade |
|
Sodium sulfite (Na2SO3),% |
≥97.0 |
≥97.0 |
|
Fe,% |
≤0.003 |
≤0.001 |
|
Water-Insoluble |
≤0.02 |
— |
|
Free alkali(As content Na2CO3),% |
≤0.10 |
≤0.40 |
|
Sulfate(As content Na2SO4),% |
≤2.5 |
— |
|
Chloride(NaCl), content % |
≤0.10 |
— |
|
Heavy metal content(Pb), mass fraction /% |
— |
≤0.0005 |
|
As content (As content), mass fraction /% |
— |
≤0.0002 |
|
Clarity |
Pass |
Pass |
Application
- Used in man-made fiber stabilizers, fabric bleaches, photographic developers, dyeing and bleaching deoxidizers, perfumes and dye reductants, paper lignin removers, etc.
Packaging & Transportation
Packing: Polypropylene weaving bag lined with polyethylene plastic bag, paper plastic compound bag, etc.
Net weight: 25/50/1000kg bag or upon clients' request.
