Vinylphosphonic acid
- CAS No.
- 1746-03-8
- Chemical Name:
- Vinylphosphonic acid
- Synonyms
- Vinylphosphonsure;vinyl-phosphonicaci;VINYLPHOSPHONIC ACID;ethenephosphonicacid;Vinylphosophonicacid;ethenylphosphonicacid;ethenyl-phosphonicaci;Vinyl phosphoric acid;ethylenephosphonicacid;Vinylphosphonic acid VPA
- CBNumber:
- CB9339239
- Molecular Formula:
- C2H5O3P
- Molecular Weight:
- 108.03
- MDL Number:
- MFCD00043866
- MOL File:
- 1746-03-8.mol
- MSDS File:
- SDS
| Product description | Number | Pack Size | Price |
| Vinylphosphonic acid 97% | 396311 | 5g | $51.1 |
| Vinylphosphonic acid 97% | 396311 | 25g | $194 |
| Vinylphosphonic Acid >95.0%(T) | V0068 | 25g | $123 |
| Vinylphosphonic Acid >95.0%(T) | V0068 | 250g | $762 |
| Vinylphosphonic acid, min. 90% | 15-9155 | 50g | $122 |
| More product size | |||
| 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 |
n |
| Flash point | >230 °F |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | Soluble in water |
| pka | 2.11±0.10(Predicted) |
| form | liquid |
| 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 | Phosphonic acid, ethenyl- (1746-03-8) |
| UNSPSC Code | 12352106 |
| NACRES | NA.23 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS05 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H290-H314 | |||||||||
| Precautionary statements | P280-P301+P330+P331-P303+P361+P353-P305+P351+P338 | |||||||||
| PPE | Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter | |||||||||
| Hazard Codes | C | |||||||||
| Risk Statements | 34-35-22 | |||||||||
| Safety Statements | 26-36/37/39-45 | |||||||||
| RIDADR | UN 3261 8/PG 2 | |||||||||
| WGK Germany | 1 | |||||||||
| RTECS | SZ7903500 | |||||||||
| TSCA | TSCA listed | |||||||||
| HazardClass | 8 | |||||||||
| PackingGroup | III | |||||||||
| HS Code | 2931499090 | |||||||||
| Storage Class | 8A - Combustible corrosive hazardous materials | |||||||||
| Hazard Classifications | Met. Corr. 1 Skin Corr. 1B |
|||||||||
| Limited Quantities | 5.0 L (1.3 gallons) (liquid) or 5.0 kg (11 lbs) (solid) | |||||||||
| Excepted Quantities | Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L) | |||||||||
| NFPA 704 |
|
Vinylphosphonic acid price More Price(18)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 396311 | Vinylphosphonic acid 97% | 1746-03-8 | 5g | $51.1 | 2025-07-31 | Buy |
| Sigma-Aldrich | 396311 | Vinylphosphonic acid 97% | 1746-03-8 | 25g | $194 | 2025-07-31 | Buy |
| TCI Chemical | V0068 | Vinylphosphonic Acid >95.0%(T) | 1746-03-8 | 25g | $123 | 2025-07-31 | Buy |
| TCI Chemical | V0068 | Vinylphosphonic Acid >95.0%(T) | 1746-03-8 | 250g | $762 | 2025-07-31 | Buy |
| Strem Chemicals | 15-9155 | Vinylphosphonic acid, min. 90% | 1746-03-8 | 50g | $122 | 2024-03-01 | Buy |
Vinylphosphonic acid Chemical Properties,Uses,Production
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.
Uses
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.
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
Not classified
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.]
Vinylphosphonic acid Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Shijiazhuang Jianxin Biotechnology Co., LTD | +undefined-86-1906231316-9 +undefined86-19062313169 | liyingjian1997@gmail.com | China | 712 | 58 |
| Hebei Chuanghai Biotechnology Co., Ltd | +8615350571055 | Sibel@chuanghaibio.com | China | 8753 | 58 |
| Shaanxi Dideu Medichem Co. Ltd | +86-29-81139210 +86-18192627656 | 1059@dideu.com | China | 3591 | 58 |
| Hebei Yanxi Chemical Co., Ltd. | +8618531123677 | faithe@yan-xi.com | China | 5853 | 58 |
| Shanghai Daken Advanced Materials Co.,Ltd | +86-2158073036 | info@dakenam.com | China | 13620 | 58 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21599 | 55 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | factory@coreychem.com | China | 29795 | 58 |
| Zhengzhou Alfa Chemical Co.,Ltd | +8618530059196 | sale04@alfachem.cn | China | 11730 | 58 |
| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418671 +8618949823763 | sales@tnjchem.com | China | 34563 | 58 |
| Yangzhou Model Electronic Materials Co., Ltd. | +8613761402923 | sales@modeltemol.com | CHINA | 571 | 58 |
View Lastest Price from Vinylphosphonic acid manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-01-05 | Vinylphosphonic acid
1746-03-8
|
US $10.00 / KG | 1KG | 99% | 100 mt | Hebei Chuanghai Biotechnology Co., Ltd | |
 |
2025-12-12 | Vinylphosphonsure
1746-03-8
|
US $1.00-0.00 / KG | 1KG | 99% | 20 tons | Shaanxi Dideu Medichem Co. Ltd | |
 |
2025-12-12 | Vinylphosphonic acid
1746-03-8
|
US $1.00-4.00 / KG | 1KG | 99% | 200000KG | Shaanxi Dideu Medichem Co. Ltd |
-
- Vinylphosphonic acid
1746-03-8
- US $10.00 / KG
- 99%
- Hebei Chuanghai Biotechnology Co., Ltd
-
- Vinylphosphonsure
1746-03-8
- US $1.00-0.00 / KG
- 99%
- Shaanxi Dideu Medichem Co. Ltd
-
- Vinylphosphonic acid
1746-03-8
- US $1.00-4.00 / KG
- 99%
- Shaanxi Dideu Medichem Co. Ltd
