Phenylphosphonic acid
- CAS No.
- 1571-33-1
- Chemical Name:
- Phenylphosphonic acid
- Synonyms
- MPCP;PPOA;Benzolphosphonsαure;BENZENEPHOSPHONIC ACID;PHENYLPHOSPHORYL DICHLORIDE;BENZOLPHOSPHONSΑURE;phenyl-phosphonicaci;PHENYLPHOSPHONIC ACID;Phosphonicacid,phenyl-;PhenylphosphonicAcid>
- CBNumber:
- CB8669061
- Molecular Formula:
- C6H7O3P
- Molecular Weight:
- 158.09
- MDL Number:
- MFCD00002136
- MOL File:
- 1571-33-1.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Product description | Number | Pack Size | Price |
| Phenylphosphonic acid 98% | P29006 | 5g | $55 |
| Phenylphosphonic acid 98% | P29006 | 100g | $62.7 |
| Phenylphosphonic Acid >98.0%(T) | P0204 | 25g | $25 |
| Phenylphosphonic Acid >98.0%(T) | P0204 | 100g | $64 |
| Phenylphosphonic acid, 98% 98% | 93-1537 | 50g | $47 |
| More product size | |||
| Melting point | 162-164 °C (lit.) |
|---|---|
| Boiling point | 241-243 °C(lit.) |
| Density | 1.412 g/mL at 25 °C(lit.) |
| vapor pressure | 0-0Pa at 20-25℃ |
| refractive index |
n |
| Flash point | >230 °F |
| storage temp. | Sealed in dry,Room Temperature |
| form | Crystalline Powder |
| pka | pK1:1.83;pK2:7.07 (25°C) |
| color | White to off-white |
| Water Solubility | 40.4 g/100 mL (25 ºC) |
| BRN | 2245168 |
| InChI | 1S/C6H7O3P/c7-10(8,9)6-4-2-1-3-5-6/h1-5H,(H2,7,8,9) |
| InChIKey | QLZHNIAADXEJJP-UHFFFAOYSA-N |
| SMILES | OP(O)(=O)c1ccccc1 |
| LogP | -3.3-0.086 at 20-25℃ and pH4-7 |
| Surface tension | 71.2mN/m at 1g/L and 20℃ |
| CAS DataBase Reference | 1571-33-1(CAS DataBase Reference) |
| FDA UNII | BYD76T2868 |
| EPA Substance Registry System | Phosphonic acid, phenyl- (1571-33-1) |
| UNSPSC Code | 12352300 |
| NACRES | NA.23 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS05,GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H302-H314 | |||||||||
| Precautionary statements | P260-P270-P280-P301+P312-P303+P361+P353-P305+P351+P338 | |||||||||
| PPE | Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges | |||||||||
| Hazard Codes | C,Xn | |||||||||
| Risk Statements | 34-37-41-37/38-22-38 | |||||||||
| Safety Statements | 26-39-37/39-45-36/37/39 | |||||||||
| RIDADR | UN 3265 8/PG 2 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | TD4393000 | |||||||||
| F | 10 | |||||||||
| TSCA | TSCA listed | |||||||||
| HazardClass | 8 | |||||||||
| PackingGroup | III | |||||||||
| HS Code | 29319090 | |||||||||
| Storage Class | 8A - Combustible corrosive hazardous materials | |||||||||
| Hazard Classifications | Acute Tox. 4 Oral Skin Corr. 1B |
|||||||||
| Toxicity | mouse,LD50,intraperitoneal,110mg/kg (110mg/kg),"Summary Tables of Biological Tests," National Research Council Chemical-Biological Coordination Center. Vol. 2, Pg. 55, 1950. | |||||||||
| REACH Registrations | Active | |||||||||
| Limited Quantities | 5.0 kg (11 lbs) (solid) | |||||||||
| Excepted Quantities | Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L) | |||||||||
| NFPA 704 |
|
Phenylphosphonic acid price More Price(49)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | P29006 | Phenylphosphonic acid 98% | 1571-33-1 | 5g | $55 | 2026-04-30 | Buy |
| Sigma-Aldrich | P29006 | Phenylphosphonic acid 98% | 1571-33-1 | 100g | $62.7 | 2026-04-30 | Buy |
| TCI Chemical | P0204 | Phenylphosphonic Acid >98.0%(T) | 1571-33-1 | 25g | $25 | 2026-04-30 | Buy |
| TCI Chemical | P0204 | Phenylphosphonic Acid >98.0%(T) | 1571-33-1 | 100g | $64 | 2026-04-30 | Buy |
| Strem Chemicals | 93-1537 | Phenylphosphonic acid, 98% 98% | 1571-33-1 | 50g | $47 | 2026-04-30 | Buy |
Phenylphosphonic acid Chemical Properties,Uses,Production
Chemical Properties
white to off-white crystalline powder
Uses
Intermediate in antifouling paint agents; catalyst in organic reactions.
Uses
Phenylphosphonic acid additive used with Noyori's catalyst for oxidation of sulfides to sulfones. Used as additive of unsaturated polyester PU resin. It also can be added into nylon to improve its polymerization degree. It can be used as extreme pressure agent of lube; used as catalyst of carboxylic acid & alcohol reaction; it can be used as fire retarding treatment of fiber used asganic materials.
Definition
ChEBI: Phenylphosphonic acid is a member of benzenes.
Hazard
Highly toxic.
Purification Methods
It is best to recrystallise it from H2O by concentrating an aqueous solution to a small volume and allowing to crystallise. Wash the crystals with ice cold H2O and dry them in a vacuum desiccator over H2SO4. [Lecher et al. J Am Chem Soc 76 1045 1954.] pK2 5 values in H2O are 7.07, and in 50% EtOH 8.26. [Jaffé et al. J Am Chem Soc 75 2209 1953, IR: Daasch & Smith Anal Chem 23 853 1951, Beilstein 16 IV 1068.]
Phenylphosphonic acid Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Jiangsu Nengyue New Material Technology Co.,Ltd | +undefined+86-13376001577 | robinlu.jian@foxmail.com | China | 64 | 58 |
| Shanghai Hongzhixin Chemical Technology Co., Ltd | +86-021-58209276 +8613817242608 | selan@hzxchem.com | China | 101 | 58 |
| Hebei Chuanghai Biotechnology Co., Ltd | +8615350571055 | Sibel@chuanghaibio.com | China | 8738 | 58 |
| Hebei Yanxi Chemical Co., Ltd. | +8618531123677 | faithe@yan-xi.com | China | 5853 | 58 |
| Hebei Chuanghai Biotechnology Co,.LTD | +86-86-13131129325 +8613131129325 | sales1@chuanghaibio.com | China | 5228 | 58 |
| Hebei Chuanghai Biotechnology Co., Ltd | +8615531151365 | mina@chuanghaibio.com | China | 18126 | 58 |
| Henan Fengda Chemical Co., Ltd | +86-371-86557731 +86-13613820652 | info@fdachem.com | China | 20122 | 58 |
| Hebei Zhuanglai Chemical Trading Co.,Ltd | +8613343047651 | admin@zlchemi.com | China | 3692 | 58 |
| Capot Chemical Co.,Ltd. | +86-（0）57185586718 +86-13336195806 | sales@capot.com | China | 29640 | 60 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21587 | 55 |
View Lastest Price from Phenylphosphonic acid manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-05-28 | Phenylphosphonic acid
1571-33-1
|
$2.60 | 1KG | 98% | 5000kg | Hebei Chuanghai Biotechnology Co,.LTD | |
 |
2026-03-20 | Phenylphosphonic acid
1571-33-1
|
$10.00 | 1KG | 99% | 10 mt | Hebei Chuanghai Biotechnology Co., Ltd | |
 |
2025-12-12 | Phenylphosphonic Acid
1571-33-1
|
$1.00 | 1KG | 99% | 20 tons | Shaanxi Dideu Medichem Co. Ltd |
-
- Phenylphosphonic acid
1571-33-1
- $2.60
- 98%
- Hebei Chuanghai Biotechnology Co,.LTD
-
- Phenylphosphonic acid
1571-33-1
- $10.00
- 99%
- Hebei Chuanghai Biotechnology Co., Ltd
-
- Phenylphosphonic Acid
1571-33-1
- $1.00
- 99%
- Shaanxi Dideu Medichem Co. Ltd
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