Sodium Bisulfite (NaHSO3) also called as sodium hydrogen sulphite is a chemical compound that can be prepared by bubbling sulphur dioxide in a solution of sodium carbonate. 38 percent of solution is produced by neutralizing sulphur dioxide gas with sodium hydroxide. Sodium Bisulphite in contact with chlorine bleach will release harmful fumes.
Sodium Bisulfite is used in almost all commercial wines, to prevent oxidation and to preserve flavor. It is also used in the analysis of methylation status of cytosine in DNA.
Sodium Bisulfite is primarily used for water treatment to remove excess chlorine in drinking water. It is used to bleach pulp in the pulp and paper industries. Mainly it is used to remove metals from industrial waste water.
Analytical Specification of Sodium Bisulfite
1.
Colour
White
2.
Appearance
Crystalline Powder
3.
Water Solubility
Solution should be clear free from insoluble matter.
4.
Purity (By Iodomatry)
95 %
5.
SO2 Content
62 %
6.
Molecular Weight
104.07
7.
Molecular Formula
NaHSO3
8.
Iron Content(As Fe2O3 )
0.007% (Max.)
9.
Heavy Metal as pb
0.007% (Max.)
MATERIAL SAFETY DATA SHEET
Product
:
SODIUM Bl SULPHITE
Chemical Name
:
HYDROGEN SULFITE SODIUM
CAS NO.
:
7631-90-5 104.60
Molecular Wt.
:
104.60
PHYSICAL DATA
Molecular formula
:
NaHSO3
PH
:
4.5 to 5.5
Density
:
1.48
Solubility
:
'SOLUBLE IN HOT.WATER OR COLD WATER.
Appearance
:
WHITE CRYSTALINE POWDER.
STORAGE STABILITY AND HANDLING
a.
Special precaution for Transport & Storage
:
KEEP PRODUCT DRY
b.
Hazardous Decomposition Products
:
None
c.
Hazardous Polymerization
:
None
d.
On heating
:
Decomposition emits very toxic Fumes of Na2O & Sox.
This product should be stored, handled and used in accordance with good industrial hygiene practices and in conformity with any legal regulations.
This information is based on our present state of knowledge and, is intended to describe ,, our products from the point of view of the safety requirements. It should not therefore be *; construed as guaranteeing specific properties.
