Phosphorous acid, 97%

Product Code. 11453770

Brand: Thermo Scientific Alfa Aesar 089407.36

Description

CAS: 13598-36-2 | H₃PO₃

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

Chemical Identifiers

• CAS: 13598-36-2
• Molecular Formula: H₃PO₃
• MDL Number: MFCD00137258
• Synonym: Phosphonic acid

• Appearance: White crystals
• Color: White
• Melting Point: 74°C
• Boiling Point: 200°C (decomposition)
• Density: 1.651 g/cm³ at 20°C
• Odor: Odorless
• Sensitivity: Air sensitive; Hygroscopic
• Assay Percent Range: 97%
• Quantity: 500 g
• Physical Form: Crystals
• UN Number: UN2834
• Merck Index: 14,7346
• Solubility Information: Soluble in water and alcohol.
• Formula Weight: 82
• Percent Purity: 97%
• Chemical Name or Material: Phosphorous acid

Sicurezza e movimentazione

Identificativo prodotto

• Phosphorous acid

Avvertenza

• Danger

Categoria di pericolo

• Acute toxicity Category 4
• Serious eye damage/eye irritation Category 1
• Substances and mixtures corrosive to metals Category 1
• Skin corrosion/irritation Category 1 A

Indicazioni di pericolo

• H290-May be corrosive to metals.
• H302-Harmful if swallowed.
• H314-Causes severe skin burns and eye damage.
• H318-Causes serious eye damage.

Consigli di prudenza

• P280-Wear protective gloves/protective clothing/eye protection/face protection.
• P301+P330+P331-IF SWALLOWED: rinse mouth. Do NOT induce vomiting.
• P303+P361+P353-IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/ shower.
• P305+P351+P338-IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
• P310-Immediately call a POISON CENTER/doctor/.

Informazioni supplementari

• MIXTURE LIST-Contains : Phosphonic acid

SDS

RUO – Research Use Only