Vinylphosphonsure

Bezeichnung:Vinylphosphonsure

CAS-Nr1746-03-8

Englisch Name:Vinylphosphonic acid

CBNumberCB9339239

SummenformelC2H5O3P

Molgewicht108.03

MOL-Datei1746-03-8.mol

Synonyma

Vinylphosphonsure

Vinylphosphonsure physikalisch-chemischer Eigenschaften

Schmelzpunkt	41-45 °C(lit.)
Siedepunkt	97-98 °C(Press: 2 Torr)
Dichte	1.389 g/mL at 25 °C(lit.)
Dampfdruck	0Pa at 20℃
Brechungsindex	n20/D 1.473
Flammpunkt	>230 °F
storage temp.	Sealed in dry,Room Temperature
Löslichkeit	Soluble in water
pka	2.11±0.10(Predicted)
Aggregatzustand	liquid
Farbe	colorless to pale-yellow
PH	1.5 (50g/l, H2O, 30℃)
Wasserlöslichkeit	100g/L at 20℃
BRN	1741622
LogP	-1.69 at 20℃
CAS Datenbank	1746-03-8(CAS DataBase Reference)
EPA chemische Informationen	Phosphonic acid, ethenyl- (1746-03-8)

Sicherheit

Kennzeichnung gefährlicher	C
R-Sätze:	34-35-22
S-Sätze:	26-36/37/39-45
RIDADR	UN 3261 8/PG 2
WGK Germany	1
RTECS-Nr.	SZ7903500
HazardClass	8
PackingGroup	III
HS Code	2931499090

Gefahreninformationscode (GHS)

Vinylphosphonic acid Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R34:Verursacht Verätzungen.
R35:Verursacht schwere Verätzungen.
R22:Gesundheitsschädlich beim Verschlucken.
S-Sätze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn möglich, dieses Etikett vorzeigen).
Verwenden
VPA based homopolymers and copolymers find usage in corrosion treatment, fuel cells, dental cement, drug delivery, and bio-mimicry.
Verwenden
Vinylphosphonic acid (VPA) can be used as a monomer unit for the synthesis of poly(vinylphosphonic acid) via free radical polymerization. It is also used to develop copolymers of VPA with acrylonitrile, N-isopropylacrylamide, styrene, vinylpyrrolidone, and acrylic and methacrylic acid. These copolymers find potential application in hydrogels, drug delivery, biomimetic mineralization, and polymer electrolyte membranes in fuel cells.
It can also be used as an organic building block to prepare (E)-styryl phosphonic acid derivatives by reacting with various aryl halides via Pd-catalyzed Heck coupling reaction.
Allgemeine Beschreibung
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
Not classified
läuterung methode
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.]

Vinylphosphonic acid Upstream-Materialien And Downstream Produkte

Vinylphosphonsure Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

1746-03-8, Vinylphosphonic acid Verwandte Suche:

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