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Cupric carbonate basic

Malachite Solubility in water (g / 100ml) Toxicity Chemical properties Uses Production method Category Toxic grading Acute Toxicity Flammability and hazardous properties Storage and transport characteristics Fire extinguishing agent Professional Standard
Cupric carbonate basic
Cupric carbonate basic structure
CAS No.
12069-69-1
Chemical Name:
Cupric carbonate basic
Synonyms
basic;kopkarb;azure blue;CUPRIC CARBONATE;COPPER CARBONATE;CUPRIC SUBCARBONATE;Artificialmalachite;copper subearbonate;Cupric carbonate bas;basiccupriccarbonate
CBNumber:
CB9852923
Molecular Formula:
CO3.Cu.CuH2O2
Formula Weight:
221.11
MOL File:
12069-69-1.mol

Cupric carbonate basic Properties

Melting point:
200 °C
Density 
4
form 
Solid
color 
green
Specific Gravity
4.
Water Solubility 
Insoluble
Merck 
14,2631
Solubility Product Constant (Ksp)
pKsp: 9.86
CAS DataBase Reference
12069-69-1(CAS DataBase Reference)
EPA Substance Registry System
Copper, [.mu.-[carbonato(2-)-.kappa. O:.kappa.O']]dihydroxydi- (12069-69-1)
SAFETY
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes  Xn,N
Risk Statements  22-36/37/38-50/53
Safety Statements  26-36-61-60
RIDADR  UN3288
WGK Germany  2
RTECS  GL6910000
TSCA  Yes
HazardClass  6.1
PackingGroup  III
HS Code  28369911
Symbol(GHS):
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405 Store locked up.

Cupric carbonate basic price More Price(10)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 12830 Copper(II) carbonate basic puriss., 54-57% Cu basis, green 12069-69-1 250g-r $77.4 2018-11-13 Buy
Sigma-Aldrich 12830 Copper(II) carbonate basic puriss., 54-57% Cu basis, green 12069-69-1 6x1kg-r $1040 2018-11-13 Buy
Alfa Aesar 033305 Copper(II) carbonate dihydroxide, Cu 55% min 12069-69-1 2kg $138 2018-11-16 Buy
Alfa Aesar 033305 Copper(II) carbonate dihydroxide, Cu 55% min 12069-69-1 500g $52.9 2018-11-16 Buy
Strem Chemicals 93-2911 Copper(II) carbonate, basic 12069-69-1 500g $48 2018-11-13 Buy

Cupric carbonate basic Chemical Properties,Uses,Production

Malachite

Cupric carbonate basic exhibits the color of malachite green, thus being called malachite, being a precious mineral gem. It is product produced from the reaction between copper and the oxygen, carbon dioxide and water in the air, also known as copper rust with green color. When being heated in the air, it will be broken down into copper oxide, water and carbon dioxide. It is soluble in acid and can generate the corresponding copper salt. It is also soluble in the aqueous solution of cyanide, ammonium salt and alkali metal carbonate to form copper complex. When being boiled in water or heated in alkaline solution, it can generate brown copper oxide. At 200 ℃, it can be decomposed into black copper oxide. It is very unstable under hydrogen sulfide atmosphere and can have reaction with hydrogen sulfide to generate copper sulfide. Cupric carbonate basic, according to the ratio difference of CuCO3 over H2O, has a dozen different forms of compounds. It is existed in the form of malachite in nature in the form of malachite.
When being placed in the air for a long time, it will absorb moisture and release carbon dioxide, slowly turning into the green malachite composition. In nature, it is existed in the form of blue copper.
Copper carbonate and cupric carbonate basic are actually not presented. The addition of sodium carbonate to the dilute copper sulfate solution, or the introduction of carbon dioxide into the suspension of copper hydroxide can both give the precipitate of cupric carbonate basic. Cupric carbonate basic can be seen as consisting of the copper hydroxide and copper carbonate. Actually there are two types of copper hydroxides with both combination with one copper carbonate and two copper carbonates.
The former one has the chemical formula of CuCO3 • Cu (OH) 2, being a monoclinic crystal fiber-like clusters, or dark green powder. The resulting precipitate from the solution was initially green and, after standing, turned dark green in solution. It is toxic, being the major components in the green rust (commonly known as copper green) generated in the copper surface.
The latter one has a chemical formula of 2CuCO3 • Cu (OH) 2, being dark sky blue, being very bright monoclinic crystal, or compact crystal clumps. It is insoluble in water, soluble in ammonia and hot and concentrated sodium bicarbonate solution and can turn into blue color. It can be decomposed at 300 °C.
Basic copper carbonate can be used to manufacture signal flares, pyrotechnics, paint pigments, other copper salts, solid phosphor activators, pesticides, seed treatment and as fungicides and antidotes as well as used for plating and so on.

Solubility in water (g / 100ml)

Solubility in 100 ml of water (grams):
1.462 × 10-4/20 ° C

Toxicity

For harmful effects of excess amount of copper, the reaction between Cu2+ with the enzyme hydrogen sulfide plays a central role, drinking of water containing 44 mg /L copper can lead to the occurrence of acute gastroenteritis. Oral administration of copper salt for 0.2~0.5 g can cause vomiting with l~2 g being able to cause severe vomiting and sometimes can lead to fatal poisoning. Chronic poisoning is manifested as nervous system dysfunction, liver and kidney dysfunction, nasal septum ulcers and perforation. The facial skin, hair and conjunctiva sometimes can become light yellow green or light green. Dust and solution can both irritate the eyes and mucous membranes.
The maximum allowable concentration of copper metal is 1 mg/m3; for copper oxide, the value is 0.1 mg/m3.
Upon copper poisoning, the patients can be subject to oral treatment with 0.1% K4 [Fe (CN) 6] solution for gastric lavage, or oral administration of protein water, magnesia laxative; upon abdominal paining, the patients can be subject to subcutaneous injection of 1 mL of 0.1% atropine sulfate; upon eye irritation, we can use water to rinse.
Upon working, we should wear protective masks, protective glasses and dust uniforms.

Chemical properties

It appears as peacock green small amorphous powder. It can’t be dissolved in cold water and alcohol, being soluble in acid to form the corresponding copper salt. It is soluble in the cyanide, ammonia, ammonium salt and alkali metal carbonate aqueous solution.

Uses

It can be applied to the fields of pyrotechnics, pesticides, pigments, feed, fungicides, preservatives and other industries for the manufacturing of copper compounds.
It can be applied to analysis reagents and pesticides
It can be applied to organic catalysts, pyrotechnics and pigments. In the field of agriculture, it can be used for the prevention of plants smut, as the poisoning antidote for insecticides and phosphorus poison antidote as well as the germicide of the seeds; being mixed with asphalt can prevent animal husbandry and wild rat from eating seedlings; it can be applied to feed as the copper additive. In the crude oil storage, it can be used as alkali agent and the raw material for the production of copper compounds. It can also be used for electroplating, corrosion and analysis reagents.
It can be applied to paint color, pyrotechnics, pesticides, seed treatment germicide and for preparation of other copper salts. It can also be used as solid fluorescent powder activator.

Production method

Copper sulfate method; formulate the baking soda into solution of relative density of 1.05, first add to the reactor, at 50 ° C, under stirring, add refined copper sulfate solution and control the reaction temperature of 70~80 ° C. The reaction takes the change of the precipitate color to peacock green as the turning point with the pH being maintained at 8. After the stopping of the reaction, after standing and sedimentation, use 70~80 ℃ water or no ion-water to wash to until the lotion has no SO42-anymore, followed by centrifugal separation, drying to obtain the finished product of cupric carbonate base. The reaction is:
2CuSO4 + 4NaHCO3 → CuCO3 • Cu (OH) 2 + 2Na2SO4 + 3CO2 ↑ + H2O
Copper nitrate: after the electrolytic copper is reacted with concentrated nitric acid to produce copper nitrate, and then have reaction with the mixture solution of sodium carbonate and sodium bicarbonate to generate cupric carbonate basic. The precipitate is subjecting to washing, separation and dehydration, drying to yield the final products. The reaction processes are:
Cu + 4HNO3 → Cu (NO3) 2 + 2NO2 ↑ + 2H2O
2Cu (NO3) 2 + 2Na2CO3 + H2O → CuCO3 • Cu (OH) 2 + 4NaNO3 + CO2 ↑
2Cu (NO3) 2 + 4NaHCO3 → CuCO3 • Cu (OH) 2 + 4NaNO3 + 3CO2 ↑ + H2O

Category

Pesticides

Toxic grading

poisoning

Acute Toxicity

Oral-Rat LD50: 1350 mg/kg

Flammability and hazardous properties

it is non-combustible with combustion yielding toxic copper-containing fumes;

Storage and transport characteristics

Treasury at low temperature, ventilation, dry

Fire extinguishing agent

water, carbon dioxide, dry powder, and sand

Professional Standard

TWA 1 mg/m3; STEL 3 mg/m3

Chemical Properties

Copper carbonate (basic), dark green monoclinic crystals, insoluble in cold H20, decomposes in H20, soluble in potassium cyanide. Malachite, copper ore, is of this composition. Refmed compound is used as a pigment.

Uses

Used to kill algae and as a pigment

Uses

As seed treatment fungicide; in pyrotechnics; as paint and varnish pigment; in animal and poultry feeds; in sweetening of petrol sour crude stock; in manufacture of other Cu salts.

Hazard

Toxic by ingestion.

Cupric carbonate basic Preparation Products And Raw materials

Raw materials

Preparation Products


Cupric carbonate basic Suppliers

Global( 225)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Henan DaKen Chemical CO.,LTD.
+86-371-55531817
info@dakenchem.com CHINA 21924 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 20680 55
Mainchem Co., Ltd.
+86-0592-6210733
+86-0592-6210733 sales@mainchem.com CHINA 32457 55
Shanghai Yingrui Biopharma Co., Ltd.
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86-0551-65418684 18949823763
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Haihang Industry Co.,Ltd
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+86 531 8582 1093 export@haihangchem.com CHINA 4660 58
hdzhl biotechnology co., ltd
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Creasyn Finechem(Tianjin) Co., Ltd. 86-22-83945878,83945171,83945172
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