SODIUM FORMALDEHYDE SULFOXYLATE HYDRATE
SODIUM FORMALDEHYDE SULFOXYLATE HYDRATE Extra Pure
Confirms to IP, USP
Short Name: SODIUM FORMALDEHYDE SULFOXYLATE HYDRATE
Synonym: Sodium hydroxymethanesulfinate hydrate
Basic Details
Article No.
LG4141
Grade
Extra Pure
Purity
45%
CAS No.
149-44-0
HS Code
2831.1020
Shelf Life
60 Months
Packings Avialable
Physical Properties
Physical state at 20 °C
Solid
Colour
White flakes
Odour
Odorless
pH value
9.5 - 10.5
Melting point/ Freezing point [°C]
120 °C
Flash point [°C]
> 100 °C
Solubility in water [% weight]
50 g/lat 20 °C
Chemical Specifications
Appearance
White big flakes
Assay as SO2 (Iodometric; on dried basis)
45 - 55%
Clarity and color of solution
Clear and colorless
Alkalinity
Passes test
pH (2% solution)
9.5 - 10.5
Sodium sulphite (Na2SO3)
Max 5%
Iron (Fe)
Max 0.001%
Sulphide (S)
Passes test
Loss on drying (at 105°C)
Max 27%
Safety Information & Hazard Symbols
Symbol
GHS08
Signal Word
Warning
Hazardous Statement
H341
Precaution Statement
P281