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| CAS No.: | 1066-30-4 |
|---|---|
| Name: | Chromic acetate |
| Molecular Structure: | |
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| Formula: | C6H12CrO6 |
| Molecular Weight: | 229.13 |
| Synonyms: | Aceticacid, chromium(3+) salt (8CI,9CI);CAC 10;Chromium acetate (Cr(AcO)3);Chromium triacetate;Chromium(3+) acetate;Chromium(III) acetate;Acetic acid,chromium(3+) salt (3:1); |
| EINECS: | 213-909-4 |
| Density: | 1,28 g/cm3 |
| Boiling Point: | 117.1 °C at 760 mmHg |
| Flash Point: | 40 °C |
| Solubility: | slightly soluble in water |
| Appearance: | grayish green to bluish green powder |
| Risk Codes: | 36/37/38 |
| Safety: | 26-36/37/39 |
| Transport Information: | UN 9101 |
| PSA: | 78.90000 |
| LogP: | 0.04140 |
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| Conditions | Yield |
|---|---|
| With chromium sulfate Ausfaellen des geloesten Bleies mit Schwefelwasserstoff, Eindampfen im Vakuum ueber Schwefelsaeure; |
| Conditions | Yield |
|---|---|
| With chromium(VI) oxide; tetrachloromethane | |
| With chromium(III) nitrate |
| Conditions | Yield |
|---|---|
| In water | |
| In water |
| Conditions | Yield |
|---|---|
| With ammonia In acetic acid byproducts: NH4Cl, acetamide; passing of NH3 into ice-cooled dild. soln. of CrO2Cl2, some hours;; |
- 1066-30-4
chromium(lll) acetate
| Conditions | Yield |
|---|---|
| In acetic anhydride dissoln.; heating up to boiling; cooling down; addn. of CCl4; pptn.;; washing with CCl4; drying at 100 °C;; | |
| With dihydrogen peroxide; acetic acid In acetic acid excess H2O2; refluxing (removal of excess H2O2), spectrophotometry; | |
| In acetic anhydride dissoln.; heating up to boiling; cooling down; addn. of CCl4; pptn.;; washing with CCl4; drying at 100 °C;; |
| Conditions | Yield |
|---|---|
| In neat (no solvent) the carboxylic acid anhydride is slowly added to dry CrO3 in a teflon lined steel reactor under N2, in an oil bath is the temp. slowly raised to about 140°C, the temp. is maintained at ca. 100° for ca.8 h, then is cooled to 0°C; a solid is separated by addn. of CCl4, is filtered, washed with CCl4 and dried in vac., elem. anal.; | >80 |
- 1066-30-4
chromium(lll) acetate
| Conditions | Yield |
|---|---|
| With NH3; CH3COOH In water addn. of aq. ammonia to an aq. soln. of chromealum, pptn., filtn., washing with distilled water several times, dissolution in a minium quantity of dilute acetic acid; |
- 1066-30-4
chromium(lll) acetate
| Conditions | Yield |
|---|---|
| With hydrogen sulfide In water react. of chromium(III) sulfate and Pb acetate in aq. soln.; addn. of H2S; pptn.; freeing from H2S by passing CO2 through supernatant soln.; evapn. in vac. over KOH or concd. H2SO4;; | |
| With Pb acetate; H2S In water react. of chromium(III) sulfate and Pb acetate in aq. soln.; addn. of H2S; pptn.; freeing from H2S by passing CO2 through supernatant soln.; evapn. in vac. over KOH or concd. H2SO4;; |
- 1066-30-4
chromium(lll) acetate
| Conditions | Yield |
|---|---|
| With CH3COOH In acetic acid byproducts: HCl; reflux until HCl evolution is complete, evapg., reflux with fresh glacial CH3COOH; |
- 1066-30-4
chromium(lll) acetate
| Conditions | Yield |
|---|---|
| With (CH3CO)2O In acetic anhydride; acetic acid reflux, 4 h; filtration, drying over NaOH; elem. anal.; | |
| With CH3COOH In acetic acid reflux, overnight; filtration, drying over NaOH; elem. anal.; |
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Specification
The Acetic acid,chromium(3+) salt (3:1), with the CAS registry number 1066-30-4 and EINECS registry number 213-909-4, has the systematic name of chromium(3+) triacetate. It is a kind of grayish green to bluish green powder, and belongs to the product category of Organic-metal salt. And the molecular formula of this chemical is C6H12CrO6. What's more, it is usually used as analytical reagent, mordant and catalyst.
The physical properties of Acetic acid,chromium(3+) salt (3:1) are as followings: (1)ACD/LogP: -0.29; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): -1.07; (4)ACD/LogD (pH 7.4): -2.86; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)ACD/KOC (pH 5.5): 2.73; (8)ACD/KOC (pH 7.4): 1; (9)#H bond acceptors: 2; (10)#H bond donors: 1; (11)#Freely Rotating Bonds: 0; (12)Polar Surface Area: 37.3 Å2; (13)Flash Point: 40 °C; (14)Enthalpy of Vaporization: 23.7 kJ/mol; (15)Boiling Point: 117.1 °C at 760 mmHg; (16)Vapour Pressure: 13.9 mmHg at 25°C.
Preparation: Add weak aqua ammonia to the Cr(H2O)6Cl3 solution, and then boil it, then you can get chromic hydroxide. Add superfluous acetic acid, and the reaction will give off a lot of heat. After several hours, it will separate crystals out. Wash it with acetone and ether, and then put it into the sulphuric acid desiccator to make it dry.
You should be cautious while dealing with this chemical. It irritates to eyes, respiratory system and skin. Therefore, you had better take the following instructions: Wear suitable protective clothing, gloves and eye/face protection, and in case of contacting with eyes, rinse immediately with plenty of water and seek medical advice.
You can still convert the following datas into molecular structure:
(1)SMILES: [Cr+3].O=C([O-])C.[O-]C(=O)C.[O-]C(=O)C
(2)InChI: InChI=1/3C2H4O2.Cr/c3*1-2(3)4;/h3*1H3,(H,3,4);/q;;;+3/p-3
(3)InChIKey: WYYQVWLEPYFFLP-DFZHHIFOAC
The toxicity data is as follows:
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| frog | LDLo | intravenous | 6185mg/kg (6185mg/kg) | Archives Internationales de Pharmacodynamie et de Therapie. Vol. 62, Pg. 330, 1939. | |
| mouse | LDLo | intravenous | 2290mg/kg (2290mg/kg) | Environmental Quality and Safety, Supplement. Vol. 1, Pg. 1, 1975. | |
| rabbit | LDLo | intravenous | 1604mg/kg (1604mg/kg) | Environmental Quality and Safety, Supplement. Vol. 1, Pg. 1, 1975. |