- Overview
- Product Description
- Product Parameters
- Packaging & Shipping
- Application Filed
- Company Profile
- Our Services
- Exhibitions
- Certifications
Basic Info.
Product Description
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 | |
1000kg jumbo bag;
can be customized as per request
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.
Our mainly products:Sodium carbonate,Sodium bicarbonate,Ammonium bicarbonate,Aluminum sulfate,Calcium chloride,Magnesium chloride,Sodium metabisulfite,Sodium nitrite and so on.
With the aim of supplying best quality, prompt delivery, competitive price and professional service,
we are looking forward to cooperating with you for a bright future!
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.