Food Tech Grade Sodium Sulfite Preservative, Sodium Sulfite Anhydrous 97% purity

Anhydrous Sodium Sulfite

 

Detail data:

Items	Norms (industrial grade)
	Superior-grade	First-grade	Qualified-grade
Na2SO3 -content % ≥	97.0	96.0	93.0
Fe-content % ≤	0.003	0.005	0.02
Water-insoluble matter content % ≤	0.02	0.03	0.05
Free alkali as Nacontent % ≤	0.10	0.40	0.80
Na2SO4 -content % ≤	2.5
NaCL-content % ≤	0.10

 

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

 

 

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.

 

6. Storage

Sodium sulfite should be stored in a dry and cool place.

 

7. Package

Sodium sulfite is packed in net weight 25kg plastic woven bag with plastic inner bag.

25tons/20'FCL.

 

anhydrous sodium sulfite 96%minNa2SO3