aceticacid,copper(2+)
Cupric acetate,anhydrous
CAS: 142-71-2
Molecular Formula: C2H4O2.1/2Cu
aceticacid,copper(2+) - Names and Identifiers
| Name | Cupric acetate,anhydrous |
| Synonyms | AI-61-A Cupric acetate diacetoxycopper acetatedecuivre Copper(Ⅱ) acetate aceticacid,cupricsalt aceticacid,copper(2+) acetatedecuivre(french) Cupric acetate,anhydrous Aceticacid,copper(2+)salt aceticacid,copper(2++)salt |
| CAS | 142-71-2 |
| EINECS | 205-553-3 |
| InChI | InChI=1/2C2H4O2.Cu/c2*1-2(3)4;/h2*1H3,(H,3,4);/q;;+2/p-2/rC4H6CuO4/c1-3(6)8-5-9-4(2)7/h1-2H3 |
aceticacid,copper(2+) - Physico-chemical Properties
| Molecular Formula | C2H4O2.1/2Cu |
| Molar Mass | 181.63 |
| Density | 1.92 at 21.9℃ |
| Melting Point | 115°C |
| Boling Point | 117.1℃ at 760 mmHg |
| Water Solubility | Soluble in water and alcohol. Slightly soluble in ether and glycerol. |
| Solubility | DMSO (Slightly, Heated), Methanol (Slightly, Heated) |
| Vapor Presure | 0.002Pa at 25℃ |
| Vapor Density | 6.9 (vs air) |
| Appearance | Green crystallization |
| Color | Green to blue |
| Exposure Limit | ACGIH: TWA 1 mg/m3NIOSH: IDLH 100 mg/m3; TWA 1 mg/m3 |
| Merck | 14,2624 |
| BRN | 3595638 |
| Storage Condition | Inert atmosphere,Room Temperature |
| Stability | hygroscopic |
| Sensitive | Hygroscopic |
| MDL | MFCD00008690 |
| Physical and Chemical Properties | Copper acetate monohydrate, dark green monoclinic crystal. The melting point of 115 deg C, decomposition at 240 deg C. The relative density was 1.882. Soluble in water, ethanol, slightly soluble in ether and glycerol, slightly weathered in dry air, with acetic acid odor. |
aceticacid,copper(2+) - Risk and Safety
| Risk Codes | R22 - Harmful if swallowed R36/37/38 - Irritating to eyes, respiratory system and skin. R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S60 - This material and its container must be disposed of as hazardous waste. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S37/39 - Wear suitable gloves and eye/face protection S29 - Do not empty into drains. |
| UN IDs | UN 3077 9/PG 3 |
| WGK Germany | 3 |
| RTECS | AG3480000 |
| FLUKA BRAND F CODES | 3-10 |
| TSCA | Yes |
| HS Code | 29152990 |
| Hazard Class | 9 |
aceticacid,copper(2+) - Reference Information
| surface tension | 72mN/m at 1.01-1.08g/L and 21.2-21.6 ℃ |
| dissociation constant | 4.69-4.89 |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| overview | copper acetate, dark green monoclinic crystal, melting point 115 ℃, crystal water is removed at 240 ℃, soluble in water and ethanol, slightly soluble in ether and glycerin. Used as analytical reagent, chromatographic analysis reagent. It is also used as an organic synthesis catalyst, ceramic coloring and pesticide. Copper acetate can also be used as agricultural fungicides, analytical reagents, astringents, mordants and coatings. When copper acetate is used as a fungicide, it is effective against cucumber bacterial angular spot disease, eggplant red spot disease, apple tree rot disease, and grape downy mildew. It is a high-efficiency, low-toxicity, and broad-spectrum fungicide. |
| pharmacological action | copper acetate has obvious inhibitory effect on the growth of liver cancer cells, but has no obvious effect on liver and kidney function, peripheral blood leukocytes and hemoglobin in mice. |
| use | 1. used as paint quick-drying agent, pharmaceutical and chemical industry, pesticide additives, enamel pigment raw materials, analytical reagents, etc. 2. Copper acetate can also be used as agricultural fungicide, analytical reagent, astringent, mordant and coating. When copper acetate is used as a fungicide, it is effective against cucumber bacterial angular spot disease, eggplant red spot disease, apple tree rot disease, and grape downy mildew. It is a high-efficiency, low-toxicity, and broad-spectrum fungicide. 3. Used as analytical reagent, chromatographic analysis reagent. 4. It is also used as organic synthesis catalyst, ceramic coloring and pesticide, etc. 5. Preparation of Paris Green Intermediate. 6. Insecticides, dyeing and fixing agents. 7. Copper acetate can be used as an oxidant for carbanions, free radicals and hydrocarbon compounds, and can realize oxidative coupling reaction of electronegative substrates and solvent cracking reaction of Si-C, Bi-C, Pb-C and Sb-C bonds. It can also be used for the cyclopropylation reaction of olefins and diazo esters. Copper acetate can also participate in the reaction as Lewis acid. copper acetate, dark green monoclinic crystal, used as analytical reagent, chromatographic analysis reagent. It is also used as an organic synthesis catalyst, ceramic coloring and pesticide. Copper acetate can also be used as agricultural fungicides, analytical reagents, astringents, mordants and coatings. When copper acetate is used as a fungicide, it is effective against cucumber bacterial angular spot disease, eggplant red spot disease, apple tree rot disease, and grape downy mildew. It is a high-efficiency, low-toxicity, and broad-spectrum fungicide. Analytical reagents, organic synthesis catalysts, insecticides, fungicides, printing and dyeing fixing agents, intermediates for the preparation of Paris Green. Used as chromatography reagent |
| Preparation | The preparation method in the laboratory is divided into three steps, the total reaction is: 2CuSO4.5H2O 4 NH3 4 CH3COOH → Cu2(OAc)4(H2O)2 2 [NH4]2[SO4] 8 H2O The monohydrate will vacuum water loss at 100°C: Cu2(OAc)4(H2O)2 → Cu2(OAc)4 2 H2O Heating anhydrous Cu2(OAc)4 together with metallic copper will give colorless and volatile cuprous acetate: 2 Cu Cu2(OAc)4 → 4 CuOAc |
| production method | dissolve 50g of copper sulfate pentahydrate in 500ml of water, filter, dissolve another 57g of sodium carbonate decahydrate in 240ml of water, heat to 60 ℃, slowly add copper sulfate solution, and stir continuously. Let it stand, filter out the precipitate, wash it with hot water until there is no sulfuric acid, place the precipitate in 300ml of water, add 2ml of ammonia water, stir, let it stand, pour out the upper solution, and wash and precipitate several times. Add 180ml of water to the beaker, heat to 60°C, add 22g of glacial acetic acid, and then add the above-mentioned washed basic copper carbonate until there is a slight residue at the bottom of the container. Filtration, when the filtrate is evaporated and concentrated to 1/3 of the original volume, cooling, filtering, washing with 2ml of water, drying at room temperature to obtain the finished product. The mother liquor continues to evaporate, and 5ml of 25% acetic acid is added during rapid crystallization to obtain some finished products. It gets 32-35g. |
| category | toxic substances |
| toxicity classification | highly toxic |
| acute toxicity | oral-rat LD50: 501 mg/kg; Oral-mouse LD50: 196 mg/kg |
| flammability hazard characteristics | combustible, the fire field discharges copper-containing spicy and stimulating smoke |
| storage and transportation characteristics | warehouse ventilation and low temperature drying; Store separately from acids. |
| fire extinguishing agent | water, carbon dioxide, dry powder, sand |
| occupational standard | TWA 1 mg (copper)/m3; STEL 2 mg (copper)/m3 |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-10 22:29:15
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