Anhydrous sodium sulfite is white crystal or powder; odorless. Very slightly soluble in ethanol, almost insoluble in ether, soluble in water, the aqueous solution was alkaline, PH value of about 9 ~ 9.5. Slightly soluble in alcohol, insoluble in liquid chlorine, ammonia.
Name: Anhydrous Sodium Sulfite
HS Code: 2832100000
Quality: 96%&97% available.
Anhydrous sodium sulfite can be used as a catalyst for the urea-formaldehyde resin synthesis and addition reaction, trash and tanning industry and plant fiber bleaching agent. It also protects oxygen-sensitive materials as reducing agents.
|Top grade||First grade||Qualified products|
|Sodium sulfite (Na2SO3) content,% ≥||97||96||93|
|Iron (Fe) content,% ≤||0.003||0.005||0.02|
|Water insoluble content,% ≤||0.02||0.03||0.05|
|Free base (Na2CO3 meter) content,% ≤||0.1||0.4||0.8|
|Sodium sulfate (Na2SO4) content,% ≤||2.5||--||--|
|Sodium chloride (NACL) content,% ≤||0.1||--||--|
25kg or 50kg/bag or OEM packing.
1). Anhydrous sodium sulfite in the printing and dyeing industry as a dechlorinating agent and bleaching agent for a variety of cotton fabrics, to prevent local oxidation of cotton fibers affect the fiber strength, photographic industry as a developer.
2).Organic industry for the m-phenylenediamine, aminosalicylic acid and other production of reducing agent, the textile industry for man-made fibers, stabilizers, but also for paper, electronics, water treatment and other industries.
1). Favorable price&Top quality.
2). Enough in stock&Prompt deliver.
3). Free samples for initial trial order.
Usually within 5-7working days after confirming the payment.