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Basic Info.
Product Description
Industrial/Food Grade Sodium Metabisulfite 99% Min CAS 7681-57-4
Sodium metabisulfite, chemical formula Na2S2O5, is an inorganic compound. It is used as a disinfectant, antioxidant and preservative.
| Product Name | Sodium metabisulfite |
| CAS | 7681-57-4 |
| MF | 2NaO5S2 |
| EINECS | 231-673-0 |
| MOQ | 1 kg, please consult for details |
| Sample And Customize | Support |
| Delivery Time | 7-15 days |
| Shipping Method | sea freight,land transport,air transport,express delivery |
| Package | standard packaging |
| Payment Method | ALL |
| Place of Origin | Shandong China |
| Production Capacity | 1000 tons/year |
| Quality | Top Quality |
Appearance and properties: white crystalline powder
Density: 1.48
Melting point: 150 °C
Water solubility: 540 g/L (20 ºC)
Stability: Stable. Incompatible with strong oxidizing agents, strong acids. Contact with strong acids releases a poisonous gas. May be moisture and air sensitive.
Storage conditions: warehouse low temperature, ventilation, dry
Usage:Used in industrial printing and dyeing, organic synthesis, printing, leather, pharmaceutical and other departments; It is used as a preservative, bleach and loose agent in food processing.
| Test Iterms | Specification | Test Result |
| Purity(As Na2S2O5) ; %≥ | 97% | 97.3 |
| Iron(As Fe); % ≤ | 0.003 | 0.002 |
| Arseni c; mg/kg ≤ | 5.0 | <5.0 |
| Heavy Metal(As Pb); mg/kg ≤ | 1.0 | <1.0 |
| Water insoluble matter | 0.05 | 0.02 |
1kg/aluminium foil bag, with two plastic bags inside.
25kg/fiber drum, with two plastic bags inside.
≤50kg, Express delivery recommended, usually called as DDU service;
≤500kg,Air shipping recommended, usually called as CIF service;
>500kg, sea shipping recommended, usually called as FOB, CFR, or CIF service;
For high value products, please select air shipping and express delivery for safety.
1. Quality
Our products meet MSDS safe standard and we have ISO and other certificate so you can get high quality products from our company.
2. Price
We are the company which is the joint of trade and industry so we can provide the competitive price and high quality product.
3. Packing
We can do according to the customers' request.
4. Transport
The products can be transported by Courier, by air or by sea.
5. Service
We will reply your message in 24 hours.
Q:How to order a sample for quality testing purpose before your commercial order?
A: We do provide our clients small sample for quality testing purpose (Sample size form 1kg). Free samples can be provided for some products due to the material cost, Our clients only need to pay the international shipping cost or provide us your Fedex/DHL account number so we can arrange the shipments. so please contact us in details by email.
Q: How to start orders or make payments?
A: You can send us your Purchase order, or just send a simple confirmation by email, after communication then we will send you Proforma Invoice with our bank details for final confirmation, then you can make payment accordingly.
Q: What's our Minimun Ordering Quantity (MOQ)?
A: For the high value products, our MOQ starts from 1 gram and other products generally starts from 1 kilogram. For other low value products, MOQ can be started from 10kgs to 100kgs.
Q: Is there a discount?
A: Yes, we offer lower prices for larger quantities. There will be difference prices range on our quotation list so please inform us what quantity you will be after.
Q: How do we guarantee our products quality?
A: First of all, our quality control system will reduce our quality problem to near zero.We can always provide our certificate of analysis according to every batch of our products.We can also provide third party analysis testing due to our clients' requirement.If there is any quality issue caused by us, we will send you free goods for replacement or refund your loss.