PHOSPHORUS ACID CRYSTALS

PHOSPHORUS ACID CRYSTALS Extra Pure

Phosphonic acid

Article No.

5256D

Grade

Extra Pure

Purity

98%

CAS No.

13598-36-2

Molecular Formula

H₃PO₃

Molecular Weight

82.00

H.S. Code

2811.1990

Shelf Life

60 Months

MSDS

Certificate of Analysis (COAs)

Physical Properties

Physical state at 20 °C

Solid

Colour

Colorless crystals

Odour

Odorless

pH value

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

Packings

500 g (00500)

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-P305 + P351 + P338-P310

Revision Date : 13-May-2015