| Identification | More | [Name]
Vinylphosphonic acid | [CAS]
1746-03-8 | [Synonyms]
VINYLPHOSPHONIC ACID
ethenephosphonicacid
ethenyl-phosphonicaci
ethenylphosphonicacid
ethylenephosphonicacid
vinyl-phosphonicaci
VINYLPHOSPHONIC ACID 90 %, PURE
VINYLPHOSPHONIC ACID 65 %, TECHNICAL
Vinylphosophonicacid
Vinylphosphonsure
Vinyl phosphonic acid, 98 % (HPLC)
Vinylphosphonic Acid (contains Phosphoric Acid, Polyvinylphosphonic Acid and Methoxyethylphosphonic Acid)
Vinylphosphonic acid (contains phosphoric acid, polyvinylphosphonic acid and methoxyethylphosphonic acid) (stabilized with HQ) | [EINECS(EC#)]
217-123-2 | [Molecular Formula]
C2H5O3P | [MDL Number]
MFCD00043866 | [Molecular Weight]
108.03 | [MOL File]
1746-03-8.mol |
| Chemical Properties | Back Directory | [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 | [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 | Back Directory | [Hazard Codes ]
C | [Risk Statements ]
R34:Causes burns.
R35:Causes severe burns.
R22:Harmful if swallowed. | [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) . | [RIDADR ]
UN 3261 8/PG 2
| [WGK Germany ]
1
| [RTECS ]
SZ7903500
| [HazardClass ]
8 | [PackingGroup ]
III | [HS Code ]
2931499090 |
| Hazard Information | Back Directory | [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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