| Model: | one level |
|---|---|
| Brand: | ruidesheng |
| Origin: | Made In China |
| Category: | Chemicals / Other Chemicals |
| Label: | Sodium Metabisulfite , sodium disulfite , sodium pyrosulfite |
| Price: |
US $290
/ ton
|
| Min. Order: | 20 ton |
| Live Chat: | Last Online:30 Dec, 2013 |
CAS No.: 7681-57-4
Other Names: sodium pyrosulfite/ sodium disulfite
MF: Na2S2O5
EINECS No.: 231-673-0
Place of Origin:
Grade Standard: Food Grade,Industrial Grade
Purity: 96.5%
Appearance: white or slight yellow crystalline form powder or small crystal
Application: used as bleaching agent, reducing agent, organic synthesis, ect.
Brand Name: RuiDeSheng
Molecular Weight: 190.09
PH: 4.0-4.6
It has acidity, and its solubility will become large while raising the temperature and is less to dissolve in ethanol.
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.
Specification For Food Grade and Industry Grade: | ||
Item | Quality Index | |
Food Grade | Industry Grade | |
Purity(As Na2S2O5) | 98.0%min | 96.0%min |
Sulfur Dioxide(SO2) | 65.0%min | 65.0%min |
Arsenic(As) | 0.0002%max | - |
Heavy metals(As Pb) | 0.0005%max | - |
Selenium(Se) | 0.001%max | - |
Iron(Fe) | 0.001%max | 0.002%max |
Water insoluble | 0.02%max | 0.05%max |
PH value: | 4.0-4.8 | 4.0-4.8 |
Remark: | Cinformed with FCC V and E223 Standard | |
