Copper acetate

CAS: 142-71-2

Overview

Copper acetate (CAS 142-71-2 ), also known as copper diacetate, is a copper salt of acetic acid used across chemical synthesis, agriculture, and specialty manufacturing.

It functions primarily as a catalyst, biocide, and pigment precursor in industrial and formulation contexts. In organic synthesis, it serves as a catalyst for coupling reactions and oxidation processes.

Agricultural formulations use it as a fungicide and algaecide active ingredient, particularly in treatments targeting mold, algae, and microbial growth on surfaces or in water systems.

Personal care and cosmetic formulators incorporate it into products where controlled copper ion activity supports preservation or color effects in various specialized applications.

In mining and metal processing, it acts as a reagent in electroplating baths and surface treatment processes to deposit or condition copper layers for industrial components.

The material is supplied as a blue-green crystalline powder or monohydrate crystals. Technical grade is the standard commercial form, with purity levels typically ranging from 98% upward.

Reagent and pharmaceutical-grade material is available for synthesis and controlled manufacturing applications where tighter specification is required for high-purity production environments.

Physical Properties

Melting Point	240 °C
Density	1.92 at 21.9℃
Appearance	Cupric acetate is a greenish Blue powder or small crystals.
Color	Green to blue
Form	Powder
Water Solubility	Soluble in water and alcohol. Slightly soluble in ether and glycerol.
Vapor Pressure	0.002Pa at 25℃
Log P	-0.285 (est)

Safety & Handling

Danger GHS05 GHS06 GHS07 GHS09 GHS08 Hazard Statements H301 Toxic if swallowed H302 Harmful if swallowed H311 Toxic in contact with skin H314 Causes severe skin burns and eye damage H318 Causes serious eye damage H335 May cause respiratory irritation H370 Causes damage to organs H372 Causes damage to organs through prolonged or repeated exposure H400 Very toxic to aquatic life H410 Very toxic to aquatic life with long lasting effects H411 Toxic to aquatic life with long lasting effects H412 Harmful to aquatic life with long lasting effects Precautionary Statements P260 Do not breathe dust/fume/gas/mist/vapours/spray. P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P262 Do not get in eyes, on skin, or on clothing. P264 Wash … thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P271 Use only outdoors or in a well-ventilated area. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P316 Get emergency medical help immediately. P317 Get emergency medical help. P319 Get medical advice/attention if you feel unwell. P321 Specific treatment (see … on this label). P330 Rinse mouth. P363 Wash contaminated clothing before reuse. P391 Collect spillage. P405 Store locked up. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P301+P316 Get emergency medical help immediately. P301+P317 Get emergency medical help. P302+P352 IF ON SKIN: Wash with plenty of water. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P308+P316 Get emergency medical help immediately. P361+P364 Take off immediately all contaminated clothing and wash it before reuse. P403+P233 Store in a well-ventilated place. Keep container tightly closed. P301+P330+P331 Rinse mouth. Do NOT induce vomiting. P302+P361+P354 IF ON SKIN: Take off immediately all contaminated clothing. Rinse skin with water/shower. P305+P354+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code	29152990
UN Number	3077
ADR Class	9
Packing Group	III
WGK (Germany)	3

Other Names

Copper(ii) acetate | Copper diacetate | Cupric acetate

Industries

Pharmaceuticals & Healthcare Mining & Metals Personal Care & Cosmetics Agriculture & Feed