Customization: | Available |
---|---|
CAS No.: | 7757-83-7 |
Formula: | Na2so3 |
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High Purity 96% white powder Food Grade CAS 7757-83-7 Na2so3 Anhydrous Sodium Sulfite
English name |
Sodium sulfite Anhydrous(food grade) |
CAS NO. | 7757-83-7 |
EINECS NO. | 231-821-4 |
Molecular Formula | Na2SO3 |
Appearance | White crystalline powder |
Melting point | 500 °C |
Quality Standard | GB 1886.8-2015 |
Product Analysis
Item
|
Index |
Main content(Na2S2O5) W/%≥
|
96.0
|
Fe content (mg/kg)≤
|
0.01
|
Free base(NaSO3) W/%≤
|
0.60
|
Heavy metal(pb) (mg/kg)≤
|
10.0
|
As content(mg/kg)≤
|
2.0
|
Clarity
|
through experiments
|
Preservative, bleaching agent and antioxidant in food industry.
Water treatment as reductant.
Bleaching agent for textile fibers, paper pulps.
Printing and dyeing industry as a dechlorinating agent and cotton scouring agent.
Ore dressing agent in mining industry.
Fixative ingredients in photographic industry.
Production of oral, topical and parenteral pharmaceutical products
Solubilizing and acidifying agent for leather industry.
Rubber industry as coagulator.
Anticorrosion and bleaching treatment in wooden products.
Producing concrete water reducing agents in construction industry.
Packaging :
25, 50, 1000 kg/bag or customized according to customer requirements, external polypropylene woven bag, lined with polyethylene plastic bag, paper-plastic composite bag, kraft paper bag, etc.
1.What kind of payment term do you support ?
T/T 30% in advance, 70% before delivery,we will take and show you every process details.
2.What's your terms of delivery?
EXW, FOB, CIF etc
3.How long will your production take ?
Normally 5-7days finish production, then delivery.
4.if u support to sample test?
Sure, we would love to offer you free sample for testing. You only need to pay the shipping fee ok.
5.How to choose the most suitable products?
Based on your industry, also your requirements, we will recommend ones for you.