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Phenylphosphine

Phenylphosphine Structure
Phenylphosphine structure
CAS No.
638-21-1
Chemical Name:
Phenylphosphine
Synonyms
PHENYLPHOSPHINE;PHPH2;Phenylp;Phenylph;Fenylfosfin;Phosphaniline;AURORA KA-1101;phenyl-phosphin;Phenyl-phosphane;Phosphine, phenyl-
CBNumber:
CB0140869
Molecular Formula:
C6H7P
Molecular Weight:
110.09
MDL Number:
MFCD00002094
MOL File:
638-21-1.mol
Last updated:2026-08-26 06:56:20
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Phenylphosphine Properties

Melting point 148-151 °C
Boiling point 160°C
Density 1.001
vapor density 3.79 (vs air)
vapor pressure 760 mmHg ( 160 °C)
refractive index 1.578
Flash point -20°F
storage temp. -20°C
form liquid
color colorless
Water Solubility Insoluble in water.
Sensitive Air & Moisture Sensitive
BRN 741946
Exposure limits ACGIH: Ceiling 0.05 ppm
NIOSH: Ceiling 0.05 ppm(0.25 mg/m3)
InChIKey RPGWZZNNEUHDAQ-UHFFFAOYSA-N
CAS DataBase Reference 638-21-1(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII 856X9KP929
Proposition 65 List Phenylphosphine
NIST Chemistry Reference Phenylphosphine(638-21-1)
EPA Substance Registry System Phenylphosphine (638-21-1)

SAFETY

Risk and Safety Statements

Symbol(GHS)  Flame (GHS02)Exclamation Mark (GHS07)Health Hazard (GHS08)Environment (GHS09)
GHS02,GHS07,GHS08,GHS09
Signal word  Danger
Hazard statements  H225-H302-H304-H315-H319-H336-H361f-H411
Precautionary statements  P210-P273-P301+P310-P303+P361+P353-P305+P351+P338-P331
Hazard Codes  F;T;N,N,T,F,Xn
Risk Statements  11-17-23/24/25-36/37/38-48/20-51/53-62-65-67-38-20/21/22
Safety Statements  16-26-36/37/39-45-62-61-36/37
RIDADR  2924
OEL Ceiling: 0.05 ppm (0.25 mg/m3)
WGK Germany  3
RTECS  SZ2100000
HazardClass  4.2
PackingGroup  I
Hazardous Substances Data 638-21-1(Hazardous Substances Data)
Excepted Quantities Max Inner Pack (1g or 1ml) and Max Outer Pack (300g or 300ml)
NFPA 704
4
2 0

Phenylphosphine price More Price(10)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 674389 Phenylphosphine ca. 10% weight in hexanes 638-21-1 50ml $342 2026-04-30 Buy
Strem Chemicals 15-4403 Phenylphosphine, 99% (10 wt% in hexanes) 99% 638-21-1 20g $161 2026-04-30 Buy
Strem Chemicals 15-4403 Phenylphosphine, 99% (10 wt% in hexanes) 99% 638-21-1 100g $484 2026-04-30 Buy
Strem Chemicals 15-4400 Phenylphosphine, 99% 99% 638-21-1 2g $144 2026-04-30 Buy
Strem Chemicals 15-4402 Phenylphosphine, 99% (Sure/Seal™ bottle) 99% 638-21-1 25g $1126 2026-04-30 Buy
Product number Packaging Price Buy
674389 50ml $342 Buy
15-4403 20g $161 Buy
15-4403 100g $484 Buy
15-4400 2g $144 Buy
15-4402 25g $1126 Buy

Phenylphosphine Chemical Properties,Uses,Production

Chemical Properties

Phenylphosphine is a clear, colorless liquid. Foul odor.

Uses

suzuki reaction

Uses

Exposure to phenylphosphine may occur when phenylphosphinates (used as catalysts and antioxidants) are heated above 200°C, yielding phenylphosphonic acid derivatives and phenylphosphine.

Uses

It is mainly used as a precursor to other organophosphorus compounds. It can function as aligandin coordination chemistry. Phenylphosphine also have uses in polymer synthesis.

Preparation

Phenylphosphine can be produced by reducing dichlorophenylphosphine with lithium aluminum hydride in ether: LiAlH4 + 2C6H5PCl2 → 2C6H5PH2 + Li+ + Al3+ + 4Cl− This reaction is performed under a nitrogen atmosphere to prevent side reactions involving oxygen.

General Description

Clear colorless liquid.

Air & Water Reactions

Pyrophoric in air. Insoluble in water. Slowly generates flammable or noxious gases in contact with water.

Reactivity Profile

Phenyl phosphine is a reducing agent. They slowly generate flammable or noxious gases in contact with water. Phosphides react quickly upon contact with moisture or acids to give the very toxic gas phosphine; phosphides also can react vigorously with oxidizing materials. In general, materials in this group are incompatible with oxidizers such as atmospheric oxygen. They are violently incompatible with acids, particularly oxidizing acids.

Health Hazard

Phenylphosphine is a respiratory and skin irritant; multiple exposures in rodents causes hematologic changes and testicular degeneration in males.

Fire Hazard

Flash point data are not available for Phenyl phosphine, but Phenyl phosphine is probably combustible.

Safety Profile

Poison by inhalation. Igmtes spontaneously in air. When heated to decomposition it emits toxic fumes of POx. See also PHOSPHINE.

Potential Exposure

Polyphosphinate is used as an intermediate or a chemical reagent. Polyphosphinate compounds are used as catalysts and antioxidants disproportionate, when heated to give phosphonic acid derivatives plus PF.

Shipping

UN2845 Pyrophoric liquids, organic, n.o.s Hazard Class: 4.2, Labels: 4.2-Spontaneously combustible material. Technical Name Required. Note: this chemical is also a strong reducing agent.

Incompatibilities

A strong reducing agent. Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides. Water reactive; spontaneously combustible in high concentrations in moist air. Potential exposure to gaseous phenylphosphine and phosphorus oxides when heated above 200C. Organophosphates are susceptible to formation of highly toxic and flammable phosphine gas in the presence of strong reducing agents such as hydrideds and active metals. Partial oxidation by oxidizing agents may result in the release of toxic phosphorus oxides.

References

[1] Freedman, Leon D., and G. O. Doak. “The Reduction of Benzenephosphonyl Dichloride.” <em>Journal of the American Chemical Society</em>, 74 13, 1952, pp. 3414–15, https://doi.org/10.1021/ja01133a504.
[2] Rauhut, M. M., et al. “The Cyanoethylation of Phosphine and Phenylphosphine.” <em>Journal of the American Chemical Society</em>, 81 5, 1959, pp. 1103–07, https://doi.org/10.1021/ja01514a022.

Phenylphosphine synthesis

1754-49-0
638-21-1
Synthesis of Phenylphosphine from Diethyl phenylphosphonate

Phenylphosphine Preparation Products And Raw materials

Raw materials

Phosphinic acid, phenyl-, ethyl ester, (R)- (9CI) Diphenylzinc Diethyl phenylphosphonate Diphenylphosphine Dichlorophenylphosphine
Iodobenzene Bromobenzene

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Preparation Products

4-Fluoroaniline Dimethylgermane Diethylgermane Triphenylphosphine Bis(hydroxymethyl)phenylphosphine
Bis(2-diphenylphosphinoethyl)phenylphosphine

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Phenylphosphine Suppliers

Global( 153)Suppliers
Supplier Tel Email Country ProdList Advantage
BeiJing Greenchem Technology Co.,Ltd. 131-21959385 18804271668 chemrocking@bjgreenchem.com China 272 58
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
INTATRADE GmbH +49 3493/605464 sales@intatrade.de Germany 3563 66
Alfa Aesar 400-6106006 saleschina@alfa-asia.com China 30103 84
ShangHai DEMO Chemical Co.,Ltd 400-021-7337 2355568890 sales@demochem.com China 2569 57
Beijing HwrkChemical Technology Co., Ltd 89508211 18501085097 sales.bj@hwrkchemical.com China 9407 55
Energy Chemical 400-0056266 sales8178@energy-chemical.com China 44850 61
JinYan Chemicals(ShangHai) Co.,Ltd. 13817811078 sales@jingyan-chemical.com China 9963 60
Beijing VSciChem Technology Co., Ltd. 13811761079 vscichem@163.com China 271 64
Shanghai Longsheng chemical Co.,Ltd. 58099637 13585536065 sales@shlschem.com China 9880 59
Supplier Advantage
BeiJing Greenchem Technology Co.,Ltd. 58
J & K SCIENTIFIC LTD. 76
INTATRADE GmbH 66
Alfa Aesar 84
ShangHai DEMO Chemical Co.,Ltd 57
Beijing HwrkChemical Technology Co., Ltd 55
Energy Chemical 61
JinYan Chemicals(ShangHai) Co.,Ltd. 60
Beijing VSciChem Technology Co., Ltd. 64
Shanghai Longsheng chemical Co.,Ltd. 59

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View Lastest Price from Phenylphosphine manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Phenyl phosphine pictures 2026-06-30 Phenyl phosphine
638-21-1
 1kg 99% 10000KGS Shaanxi Dideu New Materials Co. Ltd
Phenyl phosphine pictures 2026-03-20 Phenyl phosphine
638-21-1
 1KG 99% 20 mt Hebei Chuanghai Biotechnology Co., Ltd
Phenyl phosphine pictures 2021-08-11 Phenyl phosphine
638-21-1
 $10.00-15.00 1KG 99%+ HPLC Zhuozhou Wenxi import and Export Co., Ltd
  • Phenyl phosphine pictures
  • Phenyl phosphine
    638-21-1
  • $10.00-15.00
  • 99%+ HPLC
  • Zhuozhou Wenxi import and Export Co., Ltd

638-21-1(Phenylphosphine)Related Search:

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Chlorodiphenylphosphine Diphenylphosphinic acid Bis(pentafluorophenyl)phenylphosphine

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