
Basic information:
Product name:Sodium Sulfite Anhydrous
Molecular formula: Na2SO3
Appearance: white crystalline powder
Odor:odernessless
Production ability:10000mt/year
Quality standard HG/T 2967-2000
Shelf life:one year.
Specification:
| ITEM | FOOD GRADE | TECH GRADE | TECh GRADE | 
| Na2SO3 | > 97% | > 96% | > 93% | 
| FREE ALKALI | < 0.1% | < 0.4% | < 0.4% | 
| IRON | < 0.003% | < 0.002% | < 0.002% | 
| ATER INSOLUBLW MATTER | < 0.02% | < 0.05% | < 0.05% | 
| SODIUM SULFATE(Na2SO4) | < 2.5% | ………….. | …………. | 
| NaCl | < 0.1% | …………… | ………….. | 
Usage:
1> In Photography- In formulation of developers and fixers solutions.
2>In Water Treatment -Oxygen scavenger in Boiler water and drilling water.
3> In Effluent water-treatment of excess chlorine & detoxification of chromic acid in electro plating industries.
4>In Pulp & Paper-In processing of semi-chemical pulp production in chemi-thermo-mechanical and kraft pulping process.
5> In Chemical industry-in manufacture of Sodium thiosulphate , sulphonating agent
Package:
1> We can make the shipping mark according to your requirement.
2> We can supply the package of 25 Kgs /50kg compound plastic woven bag
3> We can supply the package of JUMBO Bag.
4> The general package is three layer, which can protect the goods very well.

Contact:
Skype:shelleytao2010888