|Place of Origin:||Hunan|
|Model Number:||pharmaceutical industry sodium sulfite|
|Minimum Order Quantity:||1 metric ton|
|Price:||usd 430 per metric ton|
|Packaging Details:||25 kgs bag,1000 kgs big bag|
|Delivery Time:||5-8 days|
|Payment Terms:||T/T , L/C|
|Supply Ability:||3000 tons per month|
|Name:||Pharmaceutical Industry Sodium Sulfite||Other Name:||Pharmaceutical Industry Anhydrous Sodium Sulphite|
|Color:||Pure White Crystal Dry Powder||Shelf Life:||2 Years/24 Months|
|Application:||Bulk Agent Chemcial||Packing:||25 Kgs Plastic Woven Bag/or As Required|
Anhydrous Sodium Sulfite
[English name]:Sodium sulfite
[Synonym]:Sulfur oxide, sodium sulfite
Fine anhydrous sodium sulfite
|Sodium sulfite(Na2SO3), % ≥||96.0|
|(Fe), ‰ ≤||0.0+86-5|
|Water insoluble, % ≤||0.03|
|Free alkali(Na2CO3), %≤||0.4|
Rough sodium sulfite
|Sodium sulfite, % ≥||65~70|
|Sodium sulfate, % ≤||10|
|Water, % ≤||20~15|
|Other, % ≤||5|
[Packing]:Fine anhydrous sodium sulfite in plastic woven bag, nwt 50kg/bag, Rough sodium sulfite plastic woven bag, nwt 40kg/bag.
[Use]:Fine sodium sulfite is used in the pharmaceutical industry, dyes and production of paper making, tanning, dyeing and printing industry and food and so on. Sodium sulfite crude is used in paper making, cement production, such as water-reducing agent.
sodium sulphite/ sodium sulfite
Description of Sodium Sulfite:
2.CAS no.: 7757-83-7
4.Appearance: White crytal powder
(1) Industry Grade : Used in Dyeing and printing Industry , as dechlorinating agent and bleaching agent, in leather and tanning industry as bleaching agent , developer agent , reductant agent , stabilizer agent , or used in papermaking, electronic and water treatment industry.
(2) Food Grade: In food industry as additive (E223) preservative, antioxidant and antimicrobic for fruits (dried, glazed and candled), vegetables (onions, potatoes, etc.), juices (citrus and grapes) and fish (shrimps and prawns). In silage treatment as anti-fermentative. In starch and sweeteners production as bacteriostatic.
(3) Photo Grade: In the photographic industry as component of developer bath.
(4) Pharmaceutical Grade: pharmaceutical industry for the production of chloroform, benzene and formaldehyde phenylpropanoid Sulfone.
Specification of Sodium sulfite for Industry Grade and Food Grade:
|Industry Grade||Food Grade|
|Purity ( As Na2SO3)||96.0% min||98.0% min|
|Sodium sulphate ( SO4)||2.0% max||1.2% max|
|Chlorides ( As NaCL)||0.5% max||0.08% max|
|Arsenic ( As )||-||0.0002% max|
|Heavy metals ( As Pb )||-||0.0005% max|
|Iron (Fe)||0.005% max||0.003% max|
|Water insoluble||0.05% max||0.01% max
|Sodium sulfite(Na2SO3) %≥||97|
|Water insoluble material %≤||0.02|
|Free alkali(Na2SO3) %≤||0.1|
1, should be stored closely in the shady, cool and dry warehouse under 30 centigrade
2, package should be sealed without contacting with air, preventing becoming damp and deteriorated
For health: it will decompose hydrogen sulfide in gastrointestinal tract, causing hydrogen sulfide poisoning; it will corrode skin and eyes
For environment: it will pollute environment
Usage & Applications:
1, in the field of water treatment
as the deoxidant of boiler water and oilfield flooding;
as antichlor for municipal and industrial water;
as the raw material for the production of sodium thiosulfate;
as the stabilizer of viscose acetal fibre;
as the bactericide of beer bottle.
2, in food industry: as bleaching agent, preservative, bulking agent, antioxidant and for the medicine synthesis
3, as analytical reagent, light dependent resistor materials and base solution of polarographic analysis
4, as antioxygen of cosmetics, mainly for hair dye cosmetics
5, as reducing agent of spice, dye and so on
6, in textile industry: as bleacher and deoxidier for fabric
7, in paper industry: as lignin removal agent
Sodium sulfite should be stored in a dry and cool place.
Sodium sulfite is packed in net weight 25kg plastic woven bag with plastic inner bag.
anhydrous sodium sulfite 96%minNa2SO3
Contact Person: Ms.xie