Introduction：Basic information about ChroMiuM hydroxide CAS 1308-14-1, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.
ChroMiuM hydroxide Basic information
| Product Name: | ChroMiuM hydroxide |
| Synonyms: | chromicacid(h3cro3);chromichydrate;Chromichydroxide;chromicoxide,hydrous;chromicoxidegel;chromium(3+)hydroxide;chromium(iii)hydroxide;chromic(iii)hydroxide |
| CAS: | 1308-14-1 |
| MF: | CrH5O4 |
| MW: | 121.03 |
| EINECS: | 215-158-8 |
| Product Categories: | Inorganics |
| Mol File: | 1308-14-1.mol |
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ChroMiuM hydroxide Chemical Properties
| Melting point | >300.00°C |
| density | 1.36[at 20℃] |
| vapor pressure | 0Pa at 20℃ |
| solubility | insoluble in H2O; soluble in acid solutions |
| form | blue-green powder |
| color | blue-green |
| PH | 7.04(1 mM solution);7.04(10 mM solution);7.04(100 mM solution) |
| Water Solubility | insoluble H2O; soluble dilute mineral acids when freshly prepared [MER06] |
| Solubility Product Constant (Ksp) | pKsp: 30.2 |
| Cosmetics Ingredients Functions | COLORANT |
| InChI | InChI=1S/Cr.3H2O/h;3*1H2/q+3;;;/p-3 |
| InChIKey | VQWFNAGFNGABOH-UHFFFAOYSA-K |
| SMILES | [Cr](O)(O)O |
| LogP | 1 at 20℃ |
| CAS DataBase Reference | 1308-14-1(CAS DataBase Reference) |
| EPA Substance Registry System | Chromium(III) hydroxide (1308-14-1) |
Safety Information
| TSCA | TSCA listed |
| Hazardous Substances Data | 1308-14-1(Hazardous Substances Data) |
ChroMiuM hydroxide Usage And Synthesis
| Chemical Properties | Green, gelatinous precipitate. Decomposes to chromic oxide by heat. Insoluble in water;soluble in acids and strong alkalies. |
| Physical properties | Bluish-green powder or green gelatinous precipitate; decomposes to chromium(III) oxide on heating; insoluble in water; soluble in dilute mineral acids when freshly prepared, becoming insoluble on aging; soluble in strong alkalis. |
| Uses | Guignet’s green, catalyst, tanning agent, mordant. |
| Preparation | Chromium(III) hydroxide may be prepared by precipitation from mixing ammonium hydroxide solution with a soluble chromium(III) salt, such as chromium(III) chloride or nitrate:
CrCl3 + 3NH4OH → Cr(OH)3 + 3NH4Cl. |
| Safety Profile | A confirmed carcinogen. A poison. A powerful oxidizer. A powerful irritant of skin, eyes, and mucous membranes. |
| Toxics Screening Level | The initial threshold screening level (ITSL) for chromium III hydroxide is 0.5 micrograms per cubic meter (μg/m3) based on a 24-hour averaging time. |
ChroMiuM hydroxide Preparation Products And Raw materials
| Raw materials | Sulphur-->Chromic sulfate-->Chromium potassium sulfate dodecahydrate-->Ammonium hydroxide |
| Preparation Products | Chromium(III) oxide-->Nickel(II) nitrate hexahydrate-->medium temperature Shift catalysts-->medium(high)temperature Shift catalysts-->Carbon tetrafluoride-->Chromium(III) fluoride |
