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Kupferchromat
COPPER(II)CHROMATE(VI) · Chromic acid (H2CrO4), copper(2+) salt (1:1)
Identifikatoren & physikalische Daten
| CAS No. | 13548-42-0 |
|---|---|
| Summenformel | CrCuO4 |
| Durchschnittliche Molmasse | 179,54 g/mol |
| Monoisotopische Masse | 178,84976 g/mol |
| SMILES | [Cu+2].[O]=[Cr](=[O])([O-])[O-] |
| InChIKey | PWGQHOJABIQOOS-UHFFFAOYSA-N |
| PubChem CID | 61646 |
| EC No. | 236-922-7 |
| DTXSID | DTXSID80893937 |
| Lokaler Name | Kupferchromat |
Chemische & physikalische Eigenschaften
| Polarare Oberfläche (TPSA) | 80,3 |
|---|---|
| H-Brücken-Donoren | 0 |
| H-Brücken-Akzeptoren | 4 |
| Frei drehbare Bindungen | 0 |
| Schwere Atome | 6 |
| Formalladung | 0 |
| Komplexität | 62,2 |
| Stoffklassen | Metals -> Chromium Compounds, Inorganic |
| Physical Description | Reddish-brown solidPractically insoluble in water[Merck Index] Brown crystalline powder[MSDSonline] |
| Schmelzpunkt | decomposes at 400℃ [KIR78] |
| Löslichkeit | insoluble in H2Osoluble in ethanolmol/L solution H2O: 0.0020 (25°C)solid phase, CuCrO4 ·H2O [KRU93] |
| Aggregatzustand | red-brown crystals |
| Farbe | red-brown crystals, crystalline |
| EPA chemische Informationen | Chromic acid (H2CrO4), copper(2+) salt (1:1) (13548-42-0) |
Sicherheit & Vorschriften
| GHS-Einstufung | DangerH302 (88.9%): 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 117 reports by companies from 3 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies. |
|---|---|
| Gefahrenübersicht | An irritantMay cause skin sensitization[MSDSonline] See Chromium and linked occupational diseases. |
| Hazard Classes and Categories | Acute Tox. 4 (88.9%) |
| Expositionsschutz und Persönliche Schutzausrüstung | 0.01 [mg/m3], respirable fraction (Cu, inorganic cmpnds)[German Research Foundation (DFG)] |
| Threshold Limit Values (TLV) | 0.0001 [mg/m3], as Cr(VI), inhalable particulate matter0.0005 [mg/m3], as Cr(VI), inhalable particulate matter |
| Permissible Exposure Limit (PEL) | 0.005 [mg/m3], as Cr(VI) |
| Immediately Dangerous to Life or Health (IDLH) | 15.0 [mg/m3], as Cr |
| Unerwünschte Wirkungen | Occupational hepatotoxin - Secondary hepatotoxins: the potential for toxic effect in the occupational setting is based on cases of poisoning by human ingestion or animal experimentation. |
| TSCA-Inventar-Status | TSCA listed |
Anwendungen & Verwendung
Verwenden
It is used in wood preservation and in textile weatherproofing.
Herstellung & Synthese
synthetische
Copper(II) chromate(VI) is a red or reddish-brown, crystalline material prepared by the careful heating of a mixture of copper(II) oxide and chromium(VI) oxide or by reaction of copper(II) oxide with solutions of chromic acid.