Learn More
Phosphorous acid, 97%, Thermo Scientific Chemicals
Phosphorus acid is used as an intermediate in the preparation of other phosphorus compounds like potassium phosphite, ammonium phosphite and calcium phosphite. It is actively involved in the preparation of phosphites like aminotris(methylenephosphonic acid) (ATMP), 1-hydroxyethane 1,1-diphosphonic acid (HEDP) and 2-phosphonobutane-1,2,4-tricarboxylic Acid (PBTC), which find application in water treatment as a scale or corrosive inhibitor. It is also used in chemical reactions as a reducing agent. Its salt, lead phosphite is used as PVC stabilizer. It is also used as a precursor in the preparation of phosphine and as an intermediate in the preparation of other phosphorus compounds.
This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.
Specifications
Melting Point
74°C
Boiling Point
200°C (decomposition)
Density
1.651 g/mL
Odor
Odorless
Sensitivity
Air sensitive; Hygroscopic
Assay Percent Range
97%
Quantity
2 kg
Physical Form
Crystalline
UN Number
UN2834
Merck Index
14,7346
Hazard Category
H290-H302-H314-H335
Hazard Statement
GHS H Statement
H314-H318-H302
Causes severe skin burns and eye damage.
Causes serious eye damage.
Harmful if swallowed.
Precautionary Statement
P234-P260-P264b-P270-P271-P280-P303+P361+P353-P304+P340-P305+P351+P338-P310-P330-P331-P363-P390-P501c
DOTInformation
Transport Hazard Class: 8; Packing Group: III; Proper Shipping Name: PHOSPHOROUS ACID
EINECSNumber
237-066-7
RTECSNumber
SZ6400000
TSCA
Yes
Recommended Storage
Ambient temperatures
RUO – Research Use Only
By clicking Submit, you acknowledge that you may be contacted by Fisher Scientific in regards to the feedback you have provided in this form. We will not share your information for any other purposes. All contact information provided shall also be maintained in accordance with our Privacy Policy.