Basic information
- CAS
14307-33-6- Standard SMILES
[Ca+2].[O]=[Cr](=[O])([O-])[O][Cr](=[O])(=[O])[O-]- InChIKey
RMISVBXFFXBNAD-UHFFFAOYSA-N- Molecular formula
- CaCr2O7
- Average molar mass
- 256.07 g/mol
- Monoisotopic mass
- 255.808003
Names & identifiers
- Preferred name
- Calcium dichromate
- IUPAC
- calcium oxido-(oxido(dioxo)chromio)oxy-dioxochromium
- English name
- Calcium bichromate
- Molecular formula
- CaCr2H4O7
- Molecular weight
- 260.1
Names & synonyms
Calcium dichromate14307-33-6Calcium dichromate(VI)EXJ6T6P0L9Chromic acid (H2Cr2O7), calcium salt (1:1)Dichromic acid, calcium salt (1:1)DTXSID7051719RefChem:1080680DTXCID7030274238-243-1Calcium bichromate14307-49-4
Show more names
Calcium chromate dihydrateChromic acid, calcium salt (1:1) (9ci)oxido-(oxido(dioxo)chromio)oxy-dioxochromium
calcium;oxido-(oxido(dioxo)chromio)oxy-dioxochromiumEINECS 238-243-1UNII-EXJ6T6P0L9SCHEMBL643583CALCIUM DICHROMATE(VI) [MI]Calcium mu-oxidohexakis(oxido)dichromate(2-)DICHROMIC(VI) ACID, CALCIUM SALT (1:1)Q16644632
Database identifiers
- CAS
14307-33-6- PubChem CID
- 61731
- DTXSID
DTXSID7051719- UNII
- EXJ6T6P0L9
- EC Number
- 238-243-1
Properties
Computed structural properties
- Topological polar surface area
- 124 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 7
- Rotatable bonds
- 0
- Heavy atoms
- 10
- Formal charge
- 0
- Complexity
- 194
Experimental & physicochemical properties
Chemical ClassesMetals -> Chromium Compounds, Inorganic
Physical DescriptionTrihydrate: Brownish-red deliquescent solid; Soluble in water; [Hawley] Trihydrate: orange-red solid; Not hygroscopic if pure; [Merck Index]
Physicochemical properties
- Melting point
- 100 ℃ · decomposes above 100℃ [MER06]
- Density
- 2.37 · 2.370
- solubility
- 2 O; · very soluble in H2O; reacts with ethanol;insoluble in ethyl ether, ctc
- form
- red-orange crystals
- color
- red-orange crystals, crystalline
- Water Solubility
- 2 O; · very soluble H2O; insoluble ether, CCl4; reacts with alcohol [MER06]
- CAS DataBase Reference
- 14307 · 14307-33-6
- EWG's Food Scores
- 1 · 1
- FDA UNII
- 6 T6P0L9 · EXJ6T6P0L9
- EPA Substance Registry System
- Chromic acid (H2Cr2O7), calcium salt (1:1) (14307-33-6)
Safety & regulation
Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.
GHS classification
GHS Classification
Danger
H302 (97.8%): Harmful if swallowed [Warning Acute toxicity, oral]
P203, P261, P264, P270, P272, P273, P280, P301+P317, P302+P352, P318, P321, P330, P333+P317, P362+P364, P391, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 93 reports by companies from 3 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Danger
H301: Toxic if swallowed [Danger Acute toxicity, oral]
Hazard information
Regulatory Information
Chemical: Chromic acid (H2Cr2O7), calcium salt (1:1)
Chromic acid (H2Cr2O7), calcium 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
CrVI compounds are irritants, sensitizers, and may be corrosive to the skin. CrVI compounds are respiratory tract irritants and may cause pulmonary sensitization. CrVI may cause acute tubular necrosis and liver injury. [ATSDR Case Studies] Readily forms hydrates: hexahydrate at <10 deg C, pentahydrate at 20-40 deg C, pentahydrate at 50-60 deg C, and the monohydrate at >70 deg C; [Ullmann] See Chromium and linked occupational diseases.
Hazard Classes and Categories
Acute Tox. 4 (97.8%)
Acute toxicity - category 2
Safety & protection
Threshold Limit Values (TLV)
0.0002 [mg/m3], as Cr(VI), inhalable particulate matter
Chemistry & industry
Uses & manufacturing
UsesUsed as corrosion inhibitor, catalyst, and to make other chromium compounds; [Hawley]
General Manufacturing InformationChromic acid (H2Cr2O7), calcium salt (1:1): ACTIVE
Applications
UsesCalcium bichromate is used as an analytical reagent, oxidizing agent, and also in the pigment industry.
Upstream & downstream products
Upstream raw materials
Suppliers10 total
北京华美互利生物化工010-56205725 · [email protected]
天津市光复科技发展有限公司022-85689490 13132141716 · [email protected]
陕西缔都化学有限公司029-029-81123119 17391733320 · [email protected]
四川库利南科技有限公司400-1166-196 18981987031 · [email protected]
青岛海智微元生物科技有限公司18317699790 18317699790 · [email protected]
湖北齐飞医药化工有限公司027-59322506 18071128681 · [email protected]
Shaanxi Didu New Materials Co. Ltd+86-86-17392712779 +86-13289823923 · [email protected]
Related reactions
0 records
No reaction records under the current filter.
Compound notes
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