China supplier sodium metabisulphite industrial grade with high quality
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
Specification For Food Grade and Industry Grade :
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
|
Arsenic ( As ) | 0.0002% max
| -
|
Heavy metals ( As Pb ) | 0.0005% max
| -
|
Selenium (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
| |
Packed in 25kg plastic woven bag, 25kg Kraft paper bag, 500kg/1000kg/1100kg/1200kg jumbo bag or as per the buyer's requirement.
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.
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.