Ingredient Dictionary

TRIPHENYLPHOSPHINE

Triphenylphosphine is a member of the class of tertiary phosphines that is phosphane in which the three hydrogens are replaced by phenyl groups.

Definition

Triphenylphosphine is a member of the class of tertiary phosphines that is phosphane in which the three hydrogens are replaced by phenyl groups. It has a role as a reducing agent. It is a member of benzenes and a tertiary phosphine.

Source: PubChem

US FDA substance register · UNII 26D26OA393 · registered name Triphenylphosphine · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Triphenylphosphine is the organic compound that conforms to the formula:

Cosmetic roles

Cares for nailsNAIL CONDITIONING

Safety & regulatory references

Korea’s toxic-substance GHS classification: Danger · H302 (category 4) · H317 (category 1B) · H372 (category 1) · +1 more

Source: Korea toxic substances GHS register (NIER)

More data — names, identifiers, properties, test records, literature

Official labels & definitions

JCIA labelling name トリフェニルホスフィン: 本品は、次の化学式で表される有機化合物である。

Source: JCIA labelling names (Japan)

Names & identifiers

TRIPHENYLPHOSPHINEINCIPhosphine, triphenyl-SynonymトリフェニルホスフィンJapanese labelling name

CAS No.chemical registry number: 603-35-0
EC No.EU chemical inventory number: 210-036-0
DTXSIDUS EPA chemical ID: DTXSID5026251
DTXCIDUS EPA compound ID: DTXCID906251

IUPAC: Triphenylphosphane
Molecular formula: C18H15P
Molecular weight: 262.292 g/mol

Measured properties

Appearance: Triphenyl phosphine appears as white crystals. (NTP, 1992) · Liquid, Dry Powder, CBI, Large Crystals, Other Solid
Odour: ODORLESS · odourless
Boiling point: greater than 680 °F at 760 mmHg (NTP, 1992) · MORE THAN 360 °C
Melting point: 176 °F (NTP, 1992) · 80.5 °C
Solubility: Insoluble (NTP, 1992) · FREELY SOL IN ETHER, SOL IN BENZENE, CHLOROFORM, GLACIAL ACETIC ACID, LESS SOL IN ALCOHOL, PRACTICALLY INSOL IN WATER
Density: 1.194 at 77 °F (NTP, 1992) - Denser than water, will sink · 1.075 @ 80 °C/4 °C
Colour: white
Melting/freezing point: 80 ℃
Initial boiling point and range: 377 ℃
Flash point: 180 ℃(o.c.)
Vapour pressure: 0.0000012 hPa(20℃)
Water solubility: 0.279 ㎎/ℓ(25℃)
Vapour density: 9
Relative density: 1.194 (20 °C)
n-Octanol/water partition coefficient (Kow): 5.69
Viscosity: 4.62 cP(100 ℃)
Molecular weight: 262.28

Values measured on the substance itself. The KOSHA data are a reference for writing and reviewing safety data sheets, not a specification for a commercial raw material.

Source: PubChem · KOSHA safety data sheets (Korea)

What products actually use it for

What the 15 products reported to the US EPA with this ingredient use it for. Products outside cosmetics are included, so the top few rows are its main uses.

Catalyst3
Processing aids not otherwise specified3
Dye2
Intermediate1
Heat stabilizer1
Softener and conditioner1
Stabilizing agent1
Hardener1

2 other uses

UV stabilizer1
Binder1

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

5 skin studies and 1 eye studies are on record.

Classed as highly irritating1Classed as moderate1

The studies disagree (the most common conclusion covers 50%), so they do not establish that this ingredient is irritating. These tests are on the raw material itself; irritation at the amount in a finished product is a different question.

See all 6 studies

Sh
Skin Sensitization · Authoritative
High Frequency of Sensitization
skin sensitisation: in vivo (non-LLNA) · Screening · according to EU Method B.6 (Skin Sensitisation)
Category 1
Skin Sensitization · Screening
Category 6.5B (Category 1)
Skin Sensitization · Read Across
Category 2
Skin Irritation · Screening
Category 2
Eye Irritation · Screening