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  Description  
  Slightly yellow, transparent liquid.  
  Uses  
  Sodium Bisulphite Solution is a convenient source of sulphur dioxide often used as an alternative to the powder ( Sodium Sulphite / Sodium Metabisulphite). It is used  
  - as a food preservative: pulps, fruit and wegetale pomaces, fruit juices, jams, yellies, dried fruit, gelatines, sugar, wines, beer, vinegar, horseradish, mustard etc.  
  - in potato industry  
  Physico-chemical properties  
  Chemical formula NaHSO3  
  Mol Wt. 104.07 g/mol  
  Density in temp.20C              1.3-1.4 g/cm3  
  Sodium Bisulphite decomposes with liberation of sulphur dioxide.  
  Technical Specification    
  NaHSO3 38 - 40          %  
  Sodium sulphite (Na2SO3) max               2               %  
  Sodium sulphate (Na2SO4) max.              2,5            %  
  Iron (Fe) max.              5             mg/kg  
  Heavy metals (as Pb) max.            10             mg/kg  
  Arsenic (As) max.              0,5          mg/kg  
  Lead (Pb) max.              0,5          mg/kg  
  Selenium (Se) max.              1             mg/kg  
  Cadmium (Cd) max.              0,1          mg/kg  
  Mercury (Hg) max.              0,03        mg/kg  
  Zinc (Zn) max               1             mg/kg  
  pH    
  Analysis made by ZN-„POLCHEM” Sp. z o.o.-001:2002  
 

HEALTH  &  SAFETY  INFORMATION

  
 

Storage

  
  It should be stored in acid resistant steel cisterns or in carbon steel cisterns with rubber lining or in polyethylene containers.  
  Transportation  
  Sodium bisulphite is supplied in rail cisterns or tank trucks.  
  RID classification – Class 8/17 c; ADR classification – Class 8/17 c.  
  Handling Precautions  
  Wear eye protection and rubber gloves, particularly when handling bulk quantities. Do not store near to, or allow to come into contact with acids or oxidizing agents.  
  Hazards  
  Sodium bisulphite solution is middly corrosive. It is not toxic substance and  non-flammable but will decompose in a fire with liberation of sulphur dioxide, a toxic gas.  
  Toxicity  
  Decomposition of sodium bisulphite solution gives sulphur dioxide. The maximum limit value for SO2 is 2 mg/m3. The odour sensibility threshold is about 0.8 mg/m3.  
  It is irritation to  eyes, nose, skin and respiratory tract. During inhalation causes: mucous membrane irritation, coughing, sultrines. After consumption causes: burning feeling in oesophagus and mouth.  
  First Aid – in case of poisoning SO2  
  Eyes: Wash out with water for  at least 15 minutes.  
  Mouth: Wash out with water and give water or milk to drink.  
  Skin: Wash off with planty of water.  
  Inhalation: Remove the person out of the danger area to fresh air, rest and keep warm until symptoms of distress subside.  
  Obtain  medical assistance, particularly if coughing persists.  
  Spillage  
  In case of effluent: retard spillage with sand, soil. Dilute with water, slurry with soda ash or lime.