ChemicalBook CAS DataBase List 1746-03-8

1746-03-8

Name	Vinylphosphonic acid
CAS	1746-03-8
EINECS(EC#)	217-123-2
Molecular Formula	C2H5O3P
MDL Number	MFCD00043866
Molecular Weight	108.03
MOL File	1746-03-8.mol

Chemical Properties

Melting point	41-45 °C(lit.)
Boiling point	97-98 °C(Press: 2 Torr)
density	1.389 g/mL at 25 °C(lit.)
vapor pressure	0Pa at 20℃
refractive index	n20/D 1.473
Fp	>230 °F
storage temp.	Sealed in dry,Room Temperature
solubility	Soluble in water
form	liquid
pka	2.11±0.10(Predicted)
color	colorless to pale-yellow
PH	1.5 (50g/l, H2O, 30℃)
Water Solubility	100g/L at 20℃
BRN	1741622
InChI	1S/C2H5O3P/c1-2-6(3,4)5/h2H,1H2,(H2,3,4,5)
InChIKey	ZTWTYVWXUKTLCP-UHFFFAOYSA-N
SMILES	OP(O)(=O)C=C
LogP	-1.69 at 20℃
CAS DataBase Reference	1746-03-8(CAS DataBase Reference)
EPA Substance Registry System	1746-03-8(EPA Substance)

Safety Data

Symbol(GHS)	GHS05
Signal word	Danger
Hazard statements	H290-H314
Precautionary statements	P280-P301+P330+P331-P303+P361+P353-P305+P351+P338
Hazard Codes	C
Risk Statements	R34:Causes burns. R35:Causes severe burns. R22:Harmful if swallowed. less more
Safety Statements	S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice . S36/37/39:Wear suitable protective clothing, gloves and eye/face protection . S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) . less more
RIDADR	UN 3261 8/PG 2
WGK Germany	1
RTECS	SZ7903500
TSCA	TSCA listed
REACH Registrations	Active
HazardClass	8
PackingGroup	III
HS Code	2931499090
Storage Class	8A - Combustible corrosive hazardous materials
Hazard Classifications	Met. Corr. 1 Skin Corr. 1B

Hazard Information

Chemical Properties

Vinylphosphonic acid is a colorless, transparent to light yellow liquid containing an unsaturated bond in its structure, which allows for flexible conversion to other organophosphine compounds.

Uses

VPA based homopolymers and copolymers find usage in corrosion treatment, fuel cells, dental cement, drug delivery, and bio-mimicry.

General Description

Vinylphosphonic acid (VPA) is an organophosphorus compound that is used in the surface treatment of metal substrates. It can be used in the preparation of poly(VPA) by radical polymerization in the presence of initiator systems and chain transfer agents. PVPA tends to have an electrolytic nature, which is useful for a variety of energy based applications.

Flammability and Explosibility

Notclassified

Purification Methods

This fireproofing agent, and ingredient for making polymers, is obtained as a syrup on hydrolyzing vinylphosphonyl dichloride with cold H2O and solidifies on prolonged drying over P2O5/KOH. When distilled at 235-240o/0.0006mm, it gives the anhydride (d 1.304, n 1.5874) [Kabachnik & Medvedi Izvest Akad Nauk SSSR, Ser Khim 868 1953, Chem Abstr 54 10834 1960]. It is best kept as the sodium salt (m 350o) which precipitates when a solution of EtOH containing NaOEt (from 2g of Na) is added to vinylphosphonic acid (3.2g), and is recrystallised from EtOH (5.1g, quantitative). The p-anisidinium salt forms mauve prisms m 250o (from EtOH/Et2O). The dimethyl ester, M 136.1, d4 1.1405, nD 1.4330, has b 72.5o/10mm and 197-202o/760mm. [Kabachnik et al. J Gen Chem USSR (Engl Trans) 33 375 1963, Beilstein 4 IV 3568.]

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1746-03-8

Chemical Properties

Safety Data

Hazard Information

Chemical Properties

Uses

General Description

Flammability and Explosibility

Purification Methods

Questions And Answer

Preparation

Spectrum Detail

Well-known Reagent Company Product Information

Supplier

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