|Place of Origin:||YUEYANG|
|Model Number:||sodium sulfite anhydrous 93 96 97 98 %|
|Minimum Order Quantity:||27 metric ton|
|Price:||$ 420-450 usd per metric ton|
|Packaging Details:||25 kgs bag,1000 / 1250 kgs big bag pallet|
|Delivery Time:||7-10 days|
|Payment Terms:||T/T , L/C|
|Supply Ability:||3000 tons per month|
|Name:||Sodium Sulfite Anhydrous||Other Name:||Anhydrous Sodium Sulphite|
|Shelf Life:||2 Years||Grade:||Industry Grade & Food Grade ...|
93% Industry Grade Anhydrous Sodium Sulphite Na2SO3 Cas No 7757 83 7 water reducer agent
also have 96 97 98% purity
Sodium Sulfite Na2SO3 is called Anhydrous Sodium Sulfite Sodium Sulfite molecular weight of 126.04 CAS 7757-83-7
Characteristic white crystal or powder;Odorless, soluble in water, extremely slightly dissolved in ethanol, almost insoluble in ether, white hexagonal prismatic crystals, soluble in water (at 0,12.54g/100ml of water;80), 283 g / 100 ml water solubility in 33.4 is about 28%, highest alkaline aqueous solution, the PH of about 9 ~ 9.5 slightly soluble in alcohol, insoluble in liquid chlorine easy oxidized into sodium sulfate to ammonia in the air, and in the high temperature is decomposed into sodium sulphide to strengthen the reductant, and sulfur dioxide generated sodium bisulfite, reaction with acid to generate the corresponding quotiety of salt and sodium sulfite is extremely strong, can restore cuprous ion of copper ions (sulfite complexes can be generated and cuprous ions and stable), can also restore phosphotungstic acid such as weak oxidant
Anhydrous sodium sulfite in water treatment applications highlighted the gold property, with strong reducibility can dechlorination deoxygenation as a reducing agent can protect the oxygen-sensitive materials are also used as anti-aging agent antioxidant neutralizer chemical industry is used as reducing agent and sulfonating agent.Dechlorination and bleaching agents for printing and dyeing industries;Food industries such as stabilizers for chemical fibre are used as bleach preservatives and as anti-oxidants in the synthesis of dehydrated vegetables.
Anhydrous sodium sulfite content
Anhydrous sodium sulfite has three contents:
Na2SO3 content is equal to or equal to 85%,
Na2SO3 content is equal to or equal to 90%,
Na2SO3 content is equal to or equal to 93%,
absolute authentic product and content are guaranteed.
Packaging, storage and warranty of anhydrous sodium sulfite
The packaging of woven bags shall be sealed and shall not be in contact with air.
Store in a cool, dry and ventilated place. Stay away from fire. It shall not be stored and transported together with oxidants, strong acids and harmful substances. Protect against rain and sun exposure during transportation.
Anhydrous sodium sulfite has deliquescence and is valid for one year in case of seal.
It is a soluble sodium salt of sulfurous acid (sulphite) with the chemical formula Na2SO3.It is a white crystal powder or granule that tastes salty with sulphur odor.
|Pulp and paper industry||Lignin removal agent|
|Water treatment||Oxygen scavenger agent.|
|Photographic industry||To protect developer solutions from oxidation and (as hypo clear solution) to wash fixer (sodium thiosulfate) from film and photo-paper emulsions.|
|Textile industry||Bleaching, desulfurizing and dechlorinating agent|
|Chemical manufacturing||Sulfonation and sulfomethylation agent. It is used in the production of sodium thiosulfate.|
|Leather trade||The sulfitization of tanning extracts|
l froth flotation of ores
l oil recovery
l food preservatives
l making dyes
l It is used in the purification of TNT for military use.
93% Industry Grade Anhydrous Sodium Sulphite Na2SO3 Cas No 7757 83 7 water reducing agent
Anhydrous sodium sulfite the purpose and the status quo, as developing protective agent, used in photographic also can be used in the bleaching of textiles in textile industry because it is also the original itself, the lack of one atom of oxygen, so easy to be in the leather-making industry can be used as to calcium oxide can do preservatives in food - processing industry in the physical state of anhydrous sodium sulfite for white powder crystal it is soluble in water, alkaline aqueous solution, in the humid air or sunlight easily oxidized to form sodium sulfate sodium sulfate less than one atom of oxygen and anhydrous sodium sulfiteIt has strong reducibility, it can react with acid neutralization reaction, and generate the sulfur dioxide, with a rotten egg smell industrial production of anhydrous sodium sulfite method, in the industry, is usually the sulfur ChanShao sulfur dioxide gas formation, after processing the gas into the soda solution, Mr Song into sodium bisulfite solution, and then flow into the neutralizing tank, again with caustic soda, sodium hydroxide and until the end in the filtered, anhydrous sodium sulfite can be after crystallization
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