97% Purity Anhydrous Sodium Sulphite Bulk Agent Paper Making HS Code 28321002 SSA

Anhydrous Sodium Sulfite

 

Package Storage and transportation:

a) Plastic film-lined PP woven bag, Net weight per bag: 25Kg or 50Kg.
b) Not allowed in a room with any oxidant or strong acid, and keep away from an oxidation by air or humidity.
c) Keep away from sunlight and humidity during its transportation.
d) Storage life: no more than half year from ex-factory date.

 

Packaging & Delivery

Packaging Details

Packed in 25kg plastic woven bag or as your requirement

Delivery Time

Specification:

Quality Standard(GB2967-2000)
Items	Company Standard
Sodium sulfite(Na2SO3) %≥	97
Fe %≤	0.003
Water insoluble material %≤	0.02
Free alkali(Na2SO3) %≤	0.1
Na2SO4 %≤	2.5
NaCl %≤	0.1

Storage:

 

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

 

 

Harm:

 

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 sulphite/ sodium sulfite

Product Description

 

 

Specification of Sodium sulfite for Industry Grade and Food Grade:

 

Item	Quality Index
	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

 

Description of Sodium Sulfite:

1.Purity: 96%,98%

 

2.CAS no.: 7757-83-7

 

3.MF: Na2SO3

 

4.Appearance: White crytal powder

 

 

 

 

5.Usages:

 

(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.