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PHOSPHOROUS ACID CRYSTALS Extra Pure
Phosphonic acid
MSDS
DE
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COAs
Packings
500 g
(00500)
Print friendly version
Article No.
5256D
Grade
Extra Pure
Purity
98%
CAS No.
13598-36-2
Molecular Formula
H
3
PO
3
Molecular Weight
82.00
H.S. Code
2811.1990
Shelf Life
60 Months
Physical Properties
Physical state at 20 °C
Solid
Colour
Colorless crystals
Odour
Odorless
pH value
1
Melting point/ Freezing point [°C]
73°C
Boiling point [°C]
200°C
Vapour pressure [20°C]
< 1 hPa at 20 °C
Density [g/cm3]
1.651
Solubility in water [% weight]
Soluble in water
Specifications
Appearance
Colorless hygroscopic crystals
Assay
Min 98%
Assay (as H3PO4)
Max 1%
Heavy metal (as Pb)
Max 0.002%
Safety Information and Hazard Symbols
Symbol: GHS05, GHS07
Signal Word: Danger
UN No.: 2834
IMCO Class No.: 8
Packing Group: III
Hazardous Statement: H302-H314
Precaution Statement: P280-P301+P330+P331-P303+P361+P353-P305 + P351 + P338
Revision Date:
17-Apr-2025
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PHOSPHOROUS ACID CRYSTALS