Customization: | Available |
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CAS No.: | 7681-57-4 |
Formula: | Na2s2o5 |
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Property: white or light yellow crystal powder.
Molecular Formula :Na2S2O5
Molecule Weight :190.12
CAS NO .:7681-57-4
Appearance :White Free Flowing Fine Crystal or Powder
PRODUCT | SODIUM METABISULFITE FOOD GRADE | |
ITEM | SPECIFICATION | TEST RESULT |
Na2S2O5(calculated by dry base) % | ≥96.5 | 97.28 |
Fe(calculated by dry base) % | ≤0.003 | 0.002 |
Water insoluble matter(calculated by dry base) % | ≤0.05 | 0.03 |
Have metal(calculated by dry base) % | ≤0.0005 |
0.0004 |
ARSENIC(calculated by dry base) % | ≤0.0001 |
0.0001 |
PH(5% water soluble) | 4.6 |
Application:
(1) Food Grade: Bleach agent (e.g. candies, cake, bamboo shoots, etc); Loose agent (e.g. bread, cracker etc); Antiseptic and germicide (e.g. fruit juice, tinned food, brews, the cereals food is defended storage etc); Inhibitor and freshen agent (e.g. day lily, seafood, fruit and vegetable etc).
(2) Industry Grade: Mordant of printing and dyeing; Dechlorinate of textile after bleaching; Sulphonated agent and reducer of chemical industry and pharmacy; Bleach of paper pulp, bamboo and timber bleach of Stap; Treatment agent of waste water; Rubber solidifying agent Perfume industry is served as hydro carbon perfume aldehyde
The hide profession employ to do to molt dose and pliable dose and wearproof dose; sewage treatment, and so on .
(3) Pharmaceutical Grade: In chemical synthesis in the production of acrylic fibre, vitamin K, vitamin A, pharmaceutical intermediates, etc.
(4) Photo Grade: The sensitize industry is served as the developing agent reductant and the protection of fixing bath dose.
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