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NAME Sodium Metabisulphite
OTHER NAME sodium pyrosulfite / sodium metabisulphite
APPEARANCE white powder
CAS NO 7681-57-4
HS CODE 2832100000
GRADE STANDARD Food Grade,Tech Grade
MOLECULAR FORMULA Na2S2O5
MOLECULAR WEIGHT 190.09
EINECS NO 231-673-0
PURITY 65%
DECOMPOSITION POINT 150 deg C
MELTING POINT 150 deg C
SPECIFIC GRAVITY 1.4
ITEMS STANDARD
EXECUTIVED STANDARD HG/T 2826-1997
specifications Tech Grade Food Grade
Sodium Metabisulphite (As SO2), % ¡Ý 64 64
Fe , % ¡Ü 0.005 0.005
Water-insoluble Matter, % ¡Ü 0.05 0.05
PH 4.0-4.6 4.0-4.6
Pb, % ¡Ü --- 0.002
As,% ¡Ü --- 0.0002
PACKING 25kg pp bag,25MT/20'FCL
USES Rubber industry used as coagulant. Cotton printing and dyeing industry as a bleaching agent after the dechlorination, cotton scouring agent. Leather industry for leather processing, make leather soft, plump, tough, with a waterproof, bending, wear properties.
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| Company: |
QINGZHOU HUAQING CHEMICAL Co., LTD.
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| Contact: |
Ms. Alice liu |
| Address: |
yidu |
| Postcode: |
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| Tel: |
86-536-3256729 |
| Fax: |
86-536-3256728 |
| E-mail: |
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