Azurite-deep blue
Copper(II) carbonate basic
CAS: 12069-69-1
Molecular Formula: CO3.Cu.CuH2O2
Azurite-deep blue - Names and Identifiers
| Name | Copper(II) carbonate basic |
| Synonyms | basic Azurite Lime Blue Blue Ashes Copper Blue Cendres Blue Mountain Blue Pigment Blue 30 Azurite-deep blue Blue Bice [KP, NP] Blue Verditer [KP] basiccupriccarbonate Azurite Genuine [DS] Copper(II) carbonate Copper carbonate basic Cupric Carbonate Basic Cupric carbonate, basic copperhydroxy-carbonate coppercarbonatehydroxide basiccopper(ii)carbonate Copperhydroxidecarbonate Copper(II) carbonate basic Azurite Greenish Grey Blue Copper(II) carbonate, basic Copper(II) hydroxide carbonate copper dihydroxycopper carbonate Coppercarbonatebasicbluegreenpowder Copper(II) Carbonate Dihydroxide, Cu Min |
| CAS | 12069-69-1 |
| EINECS | 235-113-6 |
| InChI | InChI=1/CH2O3.2Cu.2H2O/c2-1(3)4;;;;/h(H2,2,3,4);;;2*1H2/q;2*+2;;/p-4/rCH2O3.CuH2O2.Cu/c2-1(3)4;2-1-3;/h(H2,2,3,4);2-3H;/q;;+2/p-2 |
Azurite-deep blue - Physico-chemical Properties
| Molecular Formula | CO3.Cu.CuH2O2 |
| Molar Mass | 221.11 |
| Density | 4 |
| Melting Point | 200 °C |
| Boling Point | 333.6℃ at 760 mmHg |
| Water Solubility | Insoluble |
| Solubility | Aqueous Acid (Slightly) |
| Appearance | Green powder |
| Specific Gravity | 4. |
| Color | green |
| Exposure Limit | ACGIH: TWA 1 mg/m3NIOSH: IDLH 100 mg/m3; TWA 1 mg/m3 |
| Solubility Product Constant(Ksp) | pKsp: 9.86 |
| Merck | 14,2631 |
| Storage Condition | Sealed in dry,Room Temperature |
| Sensitive | Easily absorbing moisture |
| MDL | MFCD00010976 |
| Physical and Chemical Properties | Characters peafowl green fine amorphous powder. relative density 4.0 solubility insoluble in cold water and alcohol, soluble in acid to form the corresponding copper salt. Soluble cyanide, ammonia, ammonium salts and alkali metal carbonate in aqueous solution. |
| Use | Used in catalyst, pyrotechnic, pesticide, pigment, feed, fungicide, electroplating, anti-corrosion and other industries and the manufacture of copper compounds |
Azurite-deep blue - 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. S36 - Wear suitable protective clothing. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S60 - This material and its container must be disposed of as hazardous waste. |
| UN IDs | UN3288 |
| WGK Germany | 2 |
| RTECS | GL6910000 |
| TSCA | Yes |
| HS Code | 28369911 |
| Hazard Class | 6.1 |
| Packing Group | III |
Azurite-deep blue - Upstream Downstream Industry
| Raw Materials | Sodium carbonate Sulfuric acid Copper |
| Downstream Products | Copper(II)Borofluoride |
Azurite-deep blue - Nature
Open Data Verified Data
A malachite green color, fine particles of amorphous powder, its relative density of 3. 85. Insoluble in cold water and alcohol, soluble in acid and form the corresponding copper salts, soluble in aqueous solutions of cyanide, sodium hydroxide, ammonium salts and alkali metal carbonates to form copper complexes. When boiled in alkali metal carbonate solution, Brown copper oxide is formed, which is decomposed into black copper oxide, water and carbon dioxide at 200~220 ℃. Unstable in hydrogen sulfide atmosphere. The solubility in water was 0.0008%.
Last Update：2024-01-02 23:10:35
Azurite-deep blue - Preparation Method
Open Data Verified Data
The precipitation of basic copper carbonate can be obtained by adding sodium carbonate to a dilute copper sulfate solution or by passing carbon dioxide into a copper hydroxide suspension.
Last Update：2022-01-01 09:04:14
Azurite-deep blue - Introduction
Toxic, soluble in dilute acid and ammonia, insoluble in water and alcohol, 200 degree of decomposition.
Last Update：2022-10-16 17:12:42
Azurite-deep blue - Use
Open Data Verified Data
as a feed additive, the absorption and utilization of copper carbonate in ruminants such as cattle is higher than that of other inorganic copper. However, due to the high cost, its application is limited.
Last Update：2022-01-01 09:04:15
Azurite-deep blue - Safety
Open Data Verified Data
copper carbonate with dust, should avoid contact with the skin, eyes and other inhalation.
Last Update：2022-01-01 09:04:15
Azurite-deep blue - Reference Information
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| malachite | basic copper carbonate, also known as copper carbonate, is malachite green, so it is also called malachite, which is a precious mineral gem. It is a substance produced by the reaction of copper with oxygen, carbon dioxide and water in the air. It is also called copper rust and is green in color. Heating in air will decompose into copper oxide, water and carbon dioxide. Soluble in acid and form the corresponding copper salt. It is also soluble in cyanide, ammonium salt and alkali metal carbonate aqueous solution to form copper complexes. When boiled in water or heated in a strong alkali solution, brown copper oxide can be generated, which is decomposed into black copper oxide at 200°C. It is unstable in a hydrogen sulfide atmosphere and can react with hydrogen sulfide to form copper sulfide. Basic copper carbonate has more than a dozen forms of compounds according to the ratio of CuCO3:H2O. It exists in the form of malachite in nature. If it is placed in the air for a long time, it will absorb moisture and release carbon dioxide, which will slowly become a green malachite composition. It exists in nature in the form of blue copper ore. Copper carbonate and copper bicarbonate actually do not exist. Adding sodium carbonate to dilute copper sulfate solution or passing carbon dioxide into copper hydroxide suspension can obtain basic copper carbonate precipitate. Basic copper carbonate can be regarded as composed of copper hydroxide and copper carbonate. In fact, there are two types of copper hydroxide, one copper carbonate and two copper carbonate. The former chemical formula is CuCO3 · Cu(OH)2, which is a grass-green monoclinic crystalline fibrous mass, or dark green powder. The precipitate obtained from the solution initially appears green, and becomes dark green in the solution after being placed. It is toxic and is the main component of the green rust (commonly known as patina) generated on the surface of copper. The chemical formula of the latter is 2 CuCO3 · Cu(OH)2, dark sky blue, very bright monoclinic crystals, or compact crystalline clusters. It is insoluble in water, soluble in ammonia and hot and concentrated sodium bicarbonate solution to become blue, and decomposes at 300°C. basic copper carbonate can be used to make flares, fireworks, paint pigments, other copper salts, solid phosphor activators, pesticides, seed treatment and as fungicides and antidotes, and also used in electroplating. |
| solubility in water (g/100ml) | dissolved grams per 100ml of water: 1.462 × 10-4/20 ℃ |
| toxicity | in the harmful effects of excess copper, the hydrogen-sulfur reaction of Cu2 + with enzyme plays a decisive role. when drinking water containing 44 mg/L copper, acute gastroenteritis occurs. oral administration of 0.2~0.5g copper salt can cause vomiting, l ~ 2 g can cause severe vomiting, and sometimes fatal poisoning can occur. Chronic poisoning is manifested by nervous system dysfunction, liver and kidney dysfunction, nasal septum ulcer and perforation, facial skin, hair and conjunctiva sometimes turn pale yellow-green or light black-green. Dust and solution can irritate eyes and mucous membranes. The maximum allowable concentration of metal copper is 1 mg/m3 and copper oxide is 0.1 mg/m3. In case of copper poisoning, gastric lavage can be performed with 0.1% K4[Fe(CN)6] solution orally, or oral protein water and magnesium oxide laxative can be taken orally. Abdominal pain can be injected with 0.1% atropine sulfate 1 ml subcutaneously; Eye irritation can be washed with water. When working, you should wear anti-virus masks, protective glasses and dust-proof overalls. |
| use | used in pyrotechnic, pesticide, pigment, feed, fungicide, anticorrosion and other industries and manufacturing copper compounds used as analytical reagents and pesticides used in catalysts, pyrotechnic, pesticides, pigments, feed, fungicides, electroplating, anticorrosion and other industries and manufacturing copper compounds used in organic catalysts, pyrotechnic manufacturing and pigments. In agriculture, it acts as a preventive agent for plant smut, an antidote for insecticides and phosphorus toxicity, and also acts as a fungicide for seeds; mixed with asphalt can prevent livestock and wild rats from gnawing seedlings; used as copper in feed Additives, used as decinators and raw materials for the production of copper compounds during crude oil storage. It can also be used for electroplating, anti-corrosion and analytical reagents. Used in organic catalysts, pyrotechnic manufacturing and pigments. In agriculture, it is used as a preventive agent for plant smut, an insecticide and an antidote for phosphorus toxicity, and also as a fungicide for seeds; mixed with asphalt can prevent livestock and wild rats from gnawing seedlings; used as copper in feed Additives, used as decinators and raw materials for the production of copper compounds during crude oil storage. It can also be used for electroplating, anti-corrosion and analytical reagents. paint color, pyrotechnics, insecticides, seed treatment fungicides, preparation of other copper salts, solid phosphor activators. |
| production method | copper sulfate method mixes baking soda into a solution with a relative density of 1.05, first adds it to a reactor, adds refined copper sulfate solution under stirring at 50 ℃, controls the reaction temperature to 70~80 ℃, the reaction takes the precipitation to become peacock green, and the pH value is kept at 8. after the reaction, it is allowed to stand and settle, wash with 70~80 ℃ water or non-ionized water until the washing solution has no SO42-, and then centrifugally separate and dry to obtain basic copper carbonate products. 2CuSO4 4NaHCO3 → CuCO3 · Cu(OH)2 2Na2SO4 3CO2 ↑ H2O copper nitrate method electrolytic copper reacts with concentrated nitric acid to generate copper nitrate, and then reacts with a mixture of sodium carbonate and sodium bicarbonate to generate basic copper carbonate. The precipitate is washed, separated, dehydrated and dried to obtain a finished basic copper carbonate product. Cu 4HNO3 → Cu(NO3)2 2NO2 ↑ 2H2O2Cu(NO3)2 2Na2CO3 H2O → CuCO3 · Cu(OH)2 4NaNO3 CO2 ↑ 2Cu(NO3)2 4NaHCO3 → CuCO3 · Cu(OH)2 4NaNO3 3CO2 ↑ H2O copper sulfate method. Reaction equation: 2CuSO4 4NaHCO3 → CuCO3 Cu(OH)2 2Na2SO4 3CO2 ↑ H2O operation method: baking soda is prepared into a solution with a relative density of 1.05, first added into a reactor, at 50 ℃, added with refined copper sulfate solution under stirring, controlled the reaction temperature at 70~80 ℃, the reaction takes the precipitation to become peacock green as the degree, and the pH value is kept at 8. after the reaction, it is allowed to stand and settle, wash with 70~80 ℃ water or non-ionized water until the washing solution has no SO42-, and then centrifugally separate and dry to obtain basic copper carbonate products. Copper nitrate method. Reaction equation: Cu 4HNO3 → Cu(NO3)2 2NO2 ↑ 2H2O2Cu(NO3)2 2Na2CO3 H2O → CuCO3 Cu(OH)2 4NaNO3 CO2 ↑ 2Cu(NO3)2 4NaHCO3 → CuCO3 Cu(OH)2 4NaNO3 3CO2 ↑ H2O operation method: after electrolytic copper reacts with concentrated nitric acid to generate copper, it reacts with a mixture of sodium carbonate and sodium bicarbonate to generate basic copper carbonate, the precipitate is washed, separated, dehydrated, and dried to produce a finished basic copper carbonate product. |
| category | pesticide |
| toxicity classification | poisoning |
| acute toxicity | oral-rat LD50: 1350 mg/kg |
| flammability hazard characteristics | non-combustible; toxic copper-containing smoke is produced on the fire site; |
| storage and transportation characteristics | warehouse low temperature, ventilation, drying |
| fire extinguishing agent | water, carbon dioxide, dry powder, sand |
| occupational standard | TWA 1 mg/m3; STEL 3 mg/m3 |
Last Update：2024-04-10 22:29:15
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View History
Azurite-deep blue
[Arg8]-Vasotocin acetate salt
S64315 (MIK665)
2-氨基-6-氰基吡啶
酸性媒介蓝A3R
AMINO ACID STANDARD
展青霉素-13C7
2-Furancarboxaldehyde, 5-[[3-(trifluoromethyl)phenoxy]methyl]-
N-(5-溴吡啶-3-基)乙酰胺
NEURIDINE PHOSPHATE
[Arg8]-Vasotocin acetate salt
S64315 (MIK665)
2-氨基-6-氰基吡啶
酸性媒介蓝A3R
AMINO ACID STANDARD
展青霉素-13C7
2-Furancarboxaldehyde, 5-[[3-(trifluoromethyl)phenoxy]methyl]-
N-(5-溴吡啶-3-基)乙酰胺
NEURIDINE PHOSPHATE
Raw Materials for Azurite-deep blue
Downstream Products for Azurite-deep blue