| CAS No.: | 7681-57-4 |
|---|---|
| Formula: | Na2s2o5 |
| EINECS: | 231-673-0 |
| Certification: | CCIC, CIQ, RoHS, ISO, Kosher, Halal |
| Purity: | 97% |
| Type: | Sodium Metabisulfite |
| Samples: |
|---|
| Customization: |
|---|
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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 Crystalline or Powder
| Item | Quality Index |
|
| Food Grade |
Industry Grade |
|
| Purity ( As Na2S2O5) | 98.0% min |
97.0% min |
| Sulfur Dioxide( SO2) | 65.0% min |
65.0% min |
| ( As ) | 0.0002% max |
- |
| Heavy metals ( As Pb ) | 0.0005% max |
- |
| Se | 0.0005% 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 : | Conformed with FCC V and E 223 Standard | |
Application:
(1) Food Grade: Bleach agent (e.g. candies, cake,
bamboo shoots, etc); Loose agent (e.g. bread, crackeretc); 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 theproduction 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.
1. Q: Are you manufacturer or trading company?
A: We are trading company but we have shares in several cooperated factories.
2. Q: What would you do to guarantee the product quality?
A: We have professional quality control team with strict quality control system and rigorous QHSE.
We give supervision on container loading and delivery to ensure the clearness and neatness of package.
3. Q: What about your price?
A: We always supply the products with appropriate price,because we believe this is an effective way to build
long - term business with our customers and earn good reputation.
4. Q: What payment terms do you accept?
A: For new customers, we accept 30% T/T in advance,70% balance against copy of shipping docs,L/C at sight;
For old customers, the payment terms can be negotiated accordingly.
5. Q: What about the order lead time?
A: Usually the order lead time is 10-15days after receiving your prepayment.
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