White Anhydrous Sodium Sulphite Na2so3 Cas No 7757 83 7 For Water Reducer Agent

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.

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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