Definition
US FDA substance register · UNII TYV5CW74LV · registered name Red phosphorus · polymer
Cosmetic roles
Safety & regulatory references
- Banned
- Argentina · ASEAN · Brazil · Canada · China · European Union · South Korea · United Kingdom
Source: ASEAN Cosmetic Directive · EU Cosmetics Regulation · Health Canada Cosmetic Ingredient Hotlist · MFDS (Korea) cosmetic regulatory information · UK cosmetics regulations (OPSS)
Not classified under Korea’s toxic-substance GHS list · existing chemical substance
EU Cosmetics Regulation, Annex II (prohibited substances), entry 279
Health Canada Cosmetic Ingredient Hotlist · prohibited in cosmetics
Restriction II/279 · Other restriction: ban substances that deplete the ozone layer
Source: EU CosIng ingredient list
More data — names, identifiers, properties, test records, literature
Official labels & definitions
JCIA labelling name リン: 本品は、自然界に存在する元素(P)である。
Source: JCIA labelling names (Japan)
Names & identifiers
- CAS No.chemical registry number
- 7723-14-0
- EC No.EU chemical inventory number
- 231-768-7
- DTXSIDUS EPA chemical ID
- DTXSID1024382
- DTXCIDUS EPA compound ID
- DTXCID201846033
- IUPAC
- (~31~P)Phosphorus
- Molecular formula
- [31P]
- Molecular weight
- 30.97376 g/mol
Measured properties
- Appearance
- Phosphorus, amorphous (red or violet) appears as red or dark crystals or powder. Not white phosphorus but rather one of the numerous less reactive polymorphic forms of the element. Not soluble in water. · Phosphorus, [black] appears as black crystalline or amorphous solid resembling graphite. Conducts electricity. Denser than water and insoluble in water. Hence sinks in water. (USCG, 1999)
- Odour
- Garlic-like · Acrid
- Boiling point
- 536 °F at 760 mmHg, white-yellow ignites at 86 °F in moist air, red ignites at 500 °F. (EPA, 1998) · 838.9 °F at 760 mmHg (USCG, 1999)
- Melting point
- 111.2 °F white-yellow, 1094 °F violet, 1094 °F red (EPA, 1998) · 44.1 °C
- Solubility
- Black: Insoluble in organic solvents, White: Insoluble in water, slightly soluble in benzene, ethanol, and chloroform, soluble in carbon disulfide, Red: Insoluble in water and organic solvents. · Solubilities in water: one part/300,000 parts water, in abs alc: one g/400 mL, in abs ether: one g/102 mL, in CHCl3: one g/40 mL, in benzene: one g/35 mL, in CS2: one g/0.8 mL. Solubility in oils: one gram phosphorus dissolves in 80 ml olive oil, 60 ml oil of turpentine, about 100 mL almond oil.
- Density
- 2.34 red, 2.36 violet, 2.70 black, 1.8 white-yellow (EPA, 1998) · 2.691 at 68 °F (USCG, 1999) - Denser than water, will sink
- Stability
- Black: Stable in air · White: Darkens on exposure to light.
- Melting/freezing point
- 600 ℃(42 BAR)
- Initial boiling point and range
- 280 ℃
- Flash point
- 20 ℃
- Flammability (solid, gas)
- The substance has to be classified as highly flammable
- Vapour pressure
- 0.026 ㎜Hg(20℃)
- Water solubility
- 3300 g/100g(15℃)
- Vapour density
- 4.42~4.77 (Red: 4.77, White: 4.42 (Air = 1))
- Relative density
- 1.82
- n-Octanol/water partition coefficient (Kow)
- -0.27 (est.)
- Auto-ignition temperature
- 30 ℃
- Viscosity
- 1.69 cP(50℃)
- Molecular weight
- 123.9
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 52 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.
- Degradant/impurity (EPA)22
- Alloying element12
- No specific technical function8
- Flame retardant4
- Antioxidant3
- Intermediate2
- Soil amendments1
Source: US EPA CompTox dashboard
Irritation and sensitisation studies
4 skin studies and 3 eye studies are on record.
The study conclusions largely agree (100%). These tests are on the raw material itself; irritation at the amount in a finished product is a different question.
See all 7 studies
- Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · other guideline: Federal Register 1974 according to - Category 8.2A (Category 1A)
Skin Irritation · Read Across - Classification not possible
Skin Sensitization · Screening - Classification not possible
Skin Irritation · Screening - Classification not possible
Eye Irritation · Screening - Studies Indicate No Significant Irritation
eye irritation: in vivo · Screening · other guideline: Federal Register 1974 according to - Category 8.3A (Category 1)
Eye Irritation · Read Across
Source: US EPA CompTox dashboard
Related literature
- Response of Carex breviculmis to phosphorus deficiency and drought stress · 2023
- Phosphorus pentafluoride: Risk assessment, environmental, and health hazard · 2021
- Phosphorus, Selenium, Tellurium, and Sulfur · 2012
- Phosphorus, Selenium, Tellurium, and Sulfur · 2001
- Regulation of root hair density by phosphorus availability in Arabidopsis thaliana · 2001
Linked databases 21
- ASEAN Cosmetic Directive
- Australian Industrial Chemicals Inventory (AICIS)
- ChEBI 2
- EU CosIng ingredient list 2
- EU Cosmetics Regulation
- EU prohibited substances (Annex II)
- Health Canada Cosmetic Ingredient Hotlist
- JCIA labelling names (Japan)
- Korea toxic substances GHS register (NIER)
- KOSHA safety data sheets (Korea)
- MFDS (Korea) cosmetic regulatory information 2 3
- NIST Chemistry WebBook
- PubChem
- Tlooto literature search 2 3 4 5
- UK cosmetics regulations (OPSS)
- UniChem cross-reference IDs
- US EPA CompTox dashboard 2
- US EPA DSSTox chemical database
- US FDA substance registration (GSRS) 2
- US FDA Unique Ingredient Identifier (UNII)
- Wikidata 2