Anhydrous Sodium Sulfite

• Post Date:

  Jun 15,2016

• Expiry Date:

  Jun 15,2017

• Detailed Description:

  Cas No. :7757-83-7 Quantity: 200000Metric Tons
  Specs:Industrial Grade
  Price:290-350 USD Metric Tons
  Payment Method: T/T, D/A or Cash
  Classification: Sulphate
  Type: Sodium Sulfite
  Other Names: Sodium Sulfite
  CAS No.: 7757-83-7
  MF: Na2SO3
  Place of Origin: Weifang，Shandong, China (Mainland)
  Grade Standard: Food Grade, Industrial Grade, Medicine Grade
  Purity: 97%min
  Appearance: White crystalline powder
  Application: Sodium Sulfite can be used in many industrials, such as, medicine, papermaking, tannage, leather, printing, dyeing, bleaching and food.
  Brand Name: Bochuang
  Model Number: Industrial Grade
  Color: Pure White
  Packaging Details: Packed in 25/50kg per bag or following your demand
  Delivery Detail：Within 3 days after receiving the deposit
  Terms of Payment：D/A or Cash
  Delivery Port：Qingdao
  Sodium Sulfite Properties
  Molecular Formula Na2SO3
  Molar Mass 126.043g/mol
  Appearance White solid
  Odor Odorless
  Density 2.633 g/cm3 (anhydrous)
  1.561 g/cm3 (heptahydrate)
  Melting Point 33.4 °C (dehydration of heptahydrate)
  500 °C (anhydrous)
  Boiling Point Decomposes(separate(substances) into constituent elements)
  Solubility in Water 67.8 g/100 mL (18 °C, heptahydrate)
  Solubility Soluble in glycerol, insoluble in ammonia, chlorine
  Acidity (pKa) ~9 (heptahydrate)
  Refractive index (nD) 1.565
  Molecular Formula Na2 SO3 Molecule Weight 126.04
  CAS No. 7757- 83-7 HS Code 28321000
  Identity: White crystal or powder and have smell such as SO2 , it will lose some sulfur dioxide if emerged in air, and create sulfate.
  Uses: Used in leather and medicine, bleach textile and paper, reductant
  Item Top Grade First Grade Qualified Grade
  Sodium Sulfide
  (Na2SO3) ,%≥ 99.0 98.0 97.0
  Water-Insoluble , %≤ 0.005 0.02 0.03
  Chloride (Nacl ) ,%≤ 0.004 0.1 0.1
  Sulfate (Na2SO4 ) ,%≤ 1.00 1.5 2.5
  Fe,%≤ 0.002 0.003 0.003
  Heavy metal (Pb) ≤% 0.001 0.002 0.002
  Package 50 plastic bag or big bag
  Sodium Sulfite Application:
  1, In the field of water treatment
  as the deoxidant of boiler water and oilfield flooding;
  as antichlor for municipal and industrial water;
  as the raw material for the production of sodium thiosulfate;
  as the stabilizer of viscose acetal fibre;
  as the bactericide of beer bottle.
  2, In food industry: as bleaching agent, preservative, bulking agent, antioxidant and for the medicine synthesis
  3, As analytical reagent, light dependent resistor materials and base solution of polarographic analysis
  4, As antioxygen of cosmetics, mainly for hair dye cosmetics
  5, As reducing agent of spice, dye and so on
  6, In textile industry: as bleacher and deoxidier for fabric
  7, In paper industry: as lignin removal agent
  Storage & Handling: Store the product in a cool and dry place, avoid contact sunshine ,water and moisture, avoid contact with strong acid, oxidants or poisonous substances, exposure to moisture will make it oxidze easily to sodium sulphate , not store it for a long time .
  

• CAS Registry Number:

  7757-83-7

• Synonyms:

  ;Sodium sulfite anhydrous;Sodium sulphite;anhydrous sodium sulfite;Sodium sulfite ,anhydrous;Sodium Sulfite (Food Grade);

• Molecular Formula:

  Na₂SO₃

• Molecular Weight:

  126.04

• Molecular Structure:

  

• Hazard Symbols:

   Xn:Harmful;
  

• Risk Codes:

  R22:;
  R36/37/38:;
  

• Safety Description:

  S24/25:;
  

• Company:

  Weifang Bo Chuang Chemical Co., LTD     [ China ]        

• Contact:

  Xiaowen Li

• Tel:

  +86-0536-2295552

• Fax:

  +86-0536-5307189

• Email:

  wenzi1993320320@hotmail.com