Basic information
- CAS
7789-04-0- Standard SMILES
O=P([O-])([O-])[O-].[Cr+3]- InChIKey
IKZBVTPSNGOVRJ-UHFFFAOYSA-K- Molecular formula
- CrO4P
- Average molar mass
- 146.967 g/mol
- Monoisotopic mass
- 146.89392761
Overview
P32 labeled is separate SCR since that is form of major interest
Names & identifiers
- Preferred name
- Chromium phosphate (CrPO4)
- IUPAC
- chromium(3+) phosphate
- English name
- CHROMIUM(III) PHOSPHATE
- Molecular formula
- CrO4P
- Molecular weight
- 146.97
Names & synonyms
Show more names
Database identifiers
- CAS
7789-04-0- PubChem CID
- 62673
- DTXSID
DTXSID70884435- UNII
- AQ86ZJ9U98
- EC Number
- 232-141-0
- Nikkaji
- J154.778J
Properties
Computed structural properties
- Topological polar surface area
- 86.3 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 4
- Rotatable bonds
- 0
- Heavy atoms
- 6
- Formal charge
- 0
- Complexity
- 36.8
Experimental & physicochemical properties
Physical Description
Other Solid; Liquid
Gray-brown to black solid; [Merck Index] Insoluble in water; [ACGIH]
Physicochemical properties
- Melting point
- 120 · 120-140 °C (dec.)(lit.)
- Density
- 2.12 g/mL · 2.12 g/mL at 25 °C(lit.)
- solubility
- 2 O, · insoluble in H2O, acid solutions, aquaregia
- form
- blue orthorhombic crystals
- color
- blue orthorhombic crystals, crystalline
- Water Solubility
- 2 O; · insoluble H2O; soluble acids [MER06]
- Stability
- Stability
- CAS DataBase Reference
- 7789 · 7789-04-0
- FDA UNII
- 86 ZJ9U98 · AQ86ZJ9U98
- EPA Substance Registry System
- Phosphoric acid, chromium(3+) salt (1:1) (7789-04-0)
- Hazard Codes
- C
- Risk Statements
- 34 · 34
- Safety Statements
- 26 · 26-36/37/39-45
- RIDADR
- 1759 · UN 1759 8/PG 1
- WGK Germany
- 3 · 3
- TSCA
- TSCA listed
Safety & regulation
GHS classification
GHS Classification
This chemical does not meet GHS hazard criteria for 47.7% (42 of 88) of reports.
Warning
H302 (15.9%): Harmful if swallowed [Warning Acute toxicity, oral]
P264, P264+P265, P270, P280, P301+P317, P302+P352, P305+P351+P338, P321, P330, P332+P317, P337+P317, P362+P364, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 88 reports by companies from 5 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard information
Regulatory Information
Chemical: Phosphoric acid, chromium(3+) salt (1:1)
Phosphoric acid, chromium(3+) salt (1:1) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Phosphoric acid, chromium(3+) salt (1:1) are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)
Phosphoric acid, chromium(3+) salt (1:1): Does not have an individual approval but may be used as a component in a product covered by a group standard. It is not approved for use as a chemical in its own right.
Hazards Summary
CrIII compounds do not cause chrome ulcerations but may cause allergic dermatitis in workers with prior sensitization to CrVI compounds. [ILO Encyclo] CrIII is an essential trace mineral in the human diet. [ATSDR Case Studies] Toxic by ingestion; May be harmful if absorbed through skin or inhaled. Stable under recommended storage conditions. [MSDSonline] See Chromium.
Safety & protection
Toxicology
Safety data
- wgk
- 3
- tsca
- TSCA listed
- ridadr
- UN 1759 8/PG 1
- risk_code
- 34
- hazard_code
- C
- safety_code
- 26-36/37/39-45
Chemistry & industry
Uses & manufacturing
Uses
Used in pigments, wash primers, and catalysts; [Merck Index]
Painting (Pigments, Binders, and Biocides) [Category: Paint]
General Manufacturing Information
Petroleum Lubricating Oil and Grease Manufacturing
Phosphoric acid, chromium(3+) salt (1:1): ACTIVE
Applications
UsesPaint pigment, catalyst.
Preparation methods
PreparationCHROMIUM(III) PHOSPHATE is produced by the reaction of phosphoric acid with chromic anhydride (CrO3). By adding reducing agents such as formaldehyde and hydrogen peroxide, CrO3 is reduced to Cr2O3, which then combines with phosphoric acid during heating to form amorphous P2O5-Cr2O3. This inorganic polymer backbone has high strength and elastic modulus, but its applications are relatively limited due to the toxicity of Cr6+.
Suppliers59 total
Related reactions
Compound notes
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