215112
Phosphorous acid
99%
Sinónimos:
Phosphonic acid
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About This Item
Fórmula empírica (notación de Hill):
H3O3P
Número de CAS:
Peso molecular:
82.00
EC Number:
MDL number:
UNSPSC Code:
12352106
PubChem Substance ID:
NACRES:
NA.21
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Quality Level
assay
99%
form
crystals or chunks
flakes
solubility
water: soluble
density
1.651 g/mL at 25 °C (lit.)
SMILES string
[H]P(O)(O)=O
InChI
1S/H3O3P/c1-4(2)3/h4H,(H2,1,2,3)
InChI key
ABLZXFCXXLZCGV-UHFFFAOYSA-N
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General description
Phosphorous acid (or phosphonic acid) is a phosphorus oxoacid commonly used as an intermediate in chemical synthesis for the production of various phosphorus compounds. It is also used as a strong reducing agent in organic synthesis.
Application
Phosphorous acid (H3PO3, orthophosphorous acid) may be used as one of the reaction components for the synthesis of the following:
- α-aminomethylphosphonic acids via Mannich-Type Multicomponent Reaction
- 1-aminoalkanephosphonic acids via amidoalkylation followed by hydrolysis
- N-protected α-aminophosphonic acids (phospho-isosteres of natural amino acids) via amidoalkylation reaction
signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 4 Oral - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A
Storage Class
8A - Combustible corrosive hazardous materials
wgk_germany
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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Phosphonic acid monolayers are being considered as versatile surface modification agents due to their unique ability to attach to surfaces in different configurations, including mono-, bi-, or even tridentate arrangements. Tethering by aggregation and growth (T-BAG) of octadecylphosphonic acid (ODPA)
Amidoalkylation of phosphorous acid.
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Tetsu to Hagane, 22(36), 3537-3540 (1981)
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