Diphosphonate(2-) is a divalent inorganic anion obtained by removal of both protons from diphosphonic acid.
Definition
US FDA substance register · UNII 51SWB7223J · registered name Phosphorus Pentoxide · single chemical substance
Diphosphonate(2-) is a divalent inorganic anion obtained by removal of both protons from diphosphonic acid. It is a phosphorus oxoanion and a divalent inorganic anion. It is a conjugate base of a diphosphonate(1-).
Source: PubChem
Cosmetic roles
Safety & regulatory references
Korea’s toxic-substance GHS classification: Danger · H314 (category 1) · H330 (category 2)
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 五酸化リン: 本品は、次の化学式で表される無機酸化物である。
Source: JCIA labelling names (Japan)
Names & identifiers
- CAS No.chemical registry number
- 1314-56-3
- EC No.EU chemical inventory number
- 215-236-1
- DTXSIDUS EPA chemical ID
- DTXSID9047754
Measured properties
- Appearance
- solid
- Colour
- white
- pH
- 3.6 (0.1 g/L)
- Melting/freezing point
- 340 ℃
- Vapour pressure
- 1 ㎜Hg(384℃)
- Water solubility
- (Solubility in water: reaction)
- Relative density
- 2.4
- Molecular weight
- 141.94
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: 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.
- Catalyst2
- Monomers2
- Intermediate2
- Soil amendments2
- Lubricating agent1
- Coalescing agent1
- pH regulating agent1
- Processing aids not otherwise specified1
3 other uses
- Flame retardant1
- Surfactant (surface active agent)1
- Chelating agent1
Source: US EPA CompTox dashboard
Irritation and sensitisation studies
4 skin studies and 2 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 6 studies
- Classification not possible
Skin Sensitization · Screening - Skin Corr. 1A
Skin Irritation · Authoritative - Category 8.2B (Category 1B)
Skin Irritation · Read Across - Category 1
Skin Irritation · Screening - Category 8.3A (Category 1)
Eye Irritation · Read Across - Category 1
Eye Irritation · Screening
Source: US EPA CompTox dashboard
Related literature
Linked databases 17
- Australian Industrial Chemicals Inventory (AICIS)
- EU CosIng ingredient list 2
- JCIA labelling names (Japan)
- Korea Cosmetic Association ingredient dictionary
- Korea toxic substances GHS register (NIER)
- KOSHA safety data sheets (Korea)
- MFDS (Korea) cosmetic ingredient register 2
- NIST Chemistry WebBook
- PubChem
- Tlooto literature search 2
- UniChem cross-reference IDs
- US EPA CompTox dashboard
- US EPA DSSTox chemical database
- US FDA substance registration (GSRS)
- US FDA Unique Ingredient Identifier (UNII)
- Wikidata
- Wikipedia · Korean · English · Japanese · Chinese