Properties:
Chemical Name: Sodium Formaldehyde Sulfoxylate
Commercial Name: Rongalite
Molecular Formula: NaHSO2.CH2O.2H2O
Molecular Weight: 154.12
Specific Gravity: 1.8
Melting Point: 64 centigrade
Heat of Fusion: 54.84 KJ/mol( 13.2Kcal/mol)
Hygroscopic Point: Relative Humidity 60%
Stable Pour-Point: 50centigrade max

Solubility:
45%(20 centigrade): 1.2 dose of water is necessary for dissolving away 1 dose of Rongalite at 20centigrade.50%(70 centigrade): 1 dose of water is necessary for dissolving avay 1 dose of Rongalite at 70centigrade.

Physical Properties:
To be nominated for Rongalite is for the reason that it serves the color-discharging functionto fabrics as well as its appearance. Under different cooling conditions, it solidfies out into white lumps, powder, or granules.

Chemical Properties:
Presenting a powerful reduction behaviour, it acts as a salt of alkaline protection.
A. Easy to deliquescent, emit heat, begin to decompose at 80centigrade, and sulfurated hydrogen H2S being release:
6NaHSO2.CH2O+3H2O ? 4NaHSO3+2HCOONa+2H2S+HCOOH+3CH3OH
B. Decompose completely when the temperature rises to 110centigrade, the intramolecular formaldehyde are splitted out, and then nascent hydrogen which is possessed of the strongest reducing power are produced:
NaHSO2.CH2O ? NaHSO2+ CH2O
NaHSO2 + H2O ? NaHSO2+ 2[H]
C. Under the influence of acidity, decompose at PH >3, emit H2S, so that it sould be present in alkline medium PH >8.
D. Decompose on contacting oxidant, take I2 for example:

NaHSO2.CH2O+2H2O+2I2 ? NaHSO4+4HI+CH2O

For more detailed information,glen.cao at gmail dot com or 86 151 5800 4052