Vinylphosphonic acid is an organophosphorus compound with the formula C2H3PO3H2. It is a colorless, low-melting solid although commercial samples are often yellowish viscous liquids. It is used to prepare adhesives. As in other phosphonic acids, the phosphorus center is tetrahedral, being bonded to an organic group (vinyl in this case), two OH groups, and an oxygen.

CAS number :1746-03-8

Molecular formula :C2H5O3P

Molecular weight :108.03300

Accurate mass :107.99800

PSA: 67.34000

LOGP: 0.30760

Density: 1.389g /mL at 25 °C(lit.)

Boiling point: 266.2oC at 760mmHg

Melting point: 41-45 °C(lit.)

Flash point: >230 °F

Refractive index: n20/D 1.473

Vapor pressure: 0.00253mmHg at 25°C

Usage

Used as an additive for inkjet ink, because this product can reduce the surface tension, and play the role of dispersant, adding this product polymer to the ink, can reduce the viscosity of the ink, while the pigment will not precipitate; Used as discharge dye aid; The polymer of this product and acrylamide can be used as a high viscosity thixotropic capsule with large water content and high swelling property, which can be used as a highly absorbent sanitary material; The polymer can also be used as acid-soluble coatings and anti-seepage agents for oil Wells. The copolymer of this product can also be used as electrophoretic coating; An important use of this product is as an oral health care product to prevent the formation of tartar and prevent gingivitis.