|Place of Origin:||HUNAN PROVINCE|
|Model Number:||anhydrous sodium sulfite|
|Minimum Order Quantity:||10 metric ton|
|Price:||around $ 440 usd per metric ton|
|Packaging Details:||25 kgs bag,1000 1250 kgs jumbo bag|
|Delivery Time:||3-5 days|
|Payment Terms:||T/T , L/C|
|Supply Ability:||3000 tons per month|
|Name:||Sodium Sulfite Anhydrous||Other Name:||Anhydrous Sodium Sulphite|
|Situation:||Crystalline Powder||Shelf Life:||24 Months|
|Usage:||For Industry Use, Water Treatment, Bleaching||Mocular:||Na2SO3|
93/96/97 % SODIUM SULFITE ANHYDROUS
products names : 93/96/97 % SODIUM SULFITE ANHYDROUS
Product Character:White, monoclinic crystal or powder.Its alkaline aqueous solution, the PH of about 9 ~ 9.5, at 40 ℃, the highest solubility is about 37.4 g / 100 g water, into sodium sulfate, in contact with air oxidation in high temperature is decomposed into sodium sulphide, ratio of 2.633 (15.4 ℃), refractive index of 1.565.
Application:As in commercial concrete water reducing agent, used as a reducing agent and the inhibitor in mineral processing industry (inhibits sphalerite and pyrite), printing and dyeing industry as deoxidizer and bleach, used for all kinds of cotton fabric scouring, can prevent the partial oxidation of cotton fiber, fiber strength.The photosensitive industry is used as a developer, and the organic industry is used as reducing agent for the production of diphenylenediamine and amino salicylic acid.Textile industry is used as artificial fiber stabilizer.Also used in papermaking, electronic, water treatment and other industries.
Package:25Kgs/Plastic woven bags；1000kgs/Bag or as requested.
Sodium sulfite anhydrous(SSA),
|Specification of Sodium sulfite anhydrous 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|
White crystal or powder; no foul. Soluble in water, very slightly soluble in ethanol, almost insoluble in ether. White hexagonal prismatic crystals, soluble in water (0 ℃ 12.54g/100ml water; 80 ℃ when the 283g/100ml water), in 33.4 ℃ The maximum solubility of about 28% when the aqueous solution is alkaline, PH value is about 9 ~ 9.5 . Slightly soluble in alcohol, insoluble in liquid chlorine, ammonia. Easily oxidized in air sodium, when the temperature is decomposed into sodium sulfide. To strengthen the reducing agent, reacts with sulfur dioxide, sodium bisulfite, reacted with the acid salt.
Contact Person: Ms.xie