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Copper

Copper
Copper
CAS No.
7440-50-8
Chemical Name:
Copper
Synonyms
Cu;m3r;m3s;cum3;COPPER;cda101;cda102;cda110;cda122;ce1110
CBNumber:
CB2165990
Molecular Formula:
Cu
Formula Weight:
63.55
MOL File:
7440-50-8.mol

Copper Properties

Melting point:
1083.4 °C(lit.)
Boiling point:
2580 °C
Density 
8.92
Flash point:
-23 °C
storage temp. 
2-8°C
form 
wire
color 
Rust-brownish
Water Solubility 
insoluble
Sensitive 
air sensitive
Merck 
13,2545
Stability:
Stable. Incompatible with strong acids, active halogen compounds, chlorine, fluorine, iodine, bromine, ammonia. May react explosively with strong oxidizing agents.
InChIKey
RYGMFSIKBFXOCR-UHFFFAOYSA-N
CAS DataBase Reference
7440-50-8(CAS DataBase Reference)
NIST Chemistry Reference
Copper(7440-50-8)
EPA Substance Registry System
Copper(7440-50-8)
SAFETY
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes  F,N,Xi,Xn
Risk Statements  17-36/38-11-52/53-67-65-62-51/53-48/20-38-53-50/53-50-68/20/21/22-20/21/22
Safety Statements  5-26-16-61-62-36/37-60-36
RIDADR  UN 3089 4.1/PG 2
WGK Germany  3
RTECS  GL5325000
10
TSCA  Yes
HazardClass  4.1
PackingGroup  III
HS Code  74081100
Hazardous Substances Data 7440-50-8(Hazardous Substances Data)
Symbol(GHS):
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H228 Flammable solid Flammable solids Category 1
Category 2
Danger
Warning
P210, P240,P241, P280, P370+P378
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
H401 Toxic to aquatic life Hazardous to the aquatic environment, acute hazard Category 2 P273, P501
H410 Very toxic to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 1 Warning P273, P391, P501
H411 Toxic to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 2
Precautionary statements:
P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P273 Avoid release to the environment.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
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.

Copper price More Price(360)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 12816 Copper foil, ≥99.8% (complexometric) 7440-50-8 250g $54.7 2018-11-13 Buy
Sigma-Aldrich 12816 Copper foil, ≥99.8% (complexometric) 7440-50-8 1kg $146 2018-11-13 Buy
Alfa Aesar 000095 Copper foil, 0.127mm (0.005in) thick, annealed, 99.99+% (metals basis) 7440-50-8 50x250mm $307 2018-11-16 Buy
Alfa Aesar 000095 Copper foil, 0.127mm (0.005in) thick, annealed, 99.99+% (metals basis) 7440-50-8 50x50mm $85.4 2018-11-16 Buy
Strem Chemicals 29-0050 Copper powder (99%) 7440-50-8 500g $44 2018-11-13 Buy

Copper Chemical Properties,Uses,Production

Chemical Properties

Reddish brown metal; face-centered cubic crystal; density 8.92 g/cm3; Mohs hardness 2.5 to 3.0; Brinnel hardness 43 (annealed); electrical resistivity 1.71 microhm-cm at 25°C; Poisson's ratio 0.33; melts at 1,083°C; vaporizes at 2,567°C; insoluble in water; dissolves in nitric acid and hot sulfuric acid; slightly soluble in hydrochloric acid; also soluble in ammonium hydroxide, ammonium carbonate and potassium cyanide solutions.

History

The discovery of copper dates from prehistoric times. It is said to have been mined for more than 5000 years. It is one of man’s most important metals. Copper is reddish colored, takes on a bright metallic luster, and is malleable, ductile, and a good conductor of heat and electricity (second only to silver in electrical conductivity). The electrical industry is one of the greatest users of copper. Copper occasionally occurs native, and is found in many minerals such as cuprite, malachite, azurite, chalcopyrite, and bornite. Large copper ore deposits are found in the U.S., Chile, Zambia, Zaire, Peru, and Canada. The most important copper ores are the sulfides, oxides, and carbonates. From these, copper is obtained by smelting, leaching, and by electrolysis. Its alloys, brass and bronze, long used, are still very important; all American coins are now copper alloys; monel and gun metals also contain copper. The most important compounds are the oxide and the sulfate, blue vitriol; the latter has wide use as an agricultural poison and as an algicide in water purification. Copper compounds such as Fehling’s solution are widely used in analytical chemistry in tests for sugar. High-purity copper (99.999 + %) is readily available commercially. The price of commercial copper has fluctuated widely. The price of copper in December 2001 was about $1.50/kg. Natural copper contains two isotopes. Twenty-six other radioactive isotopes and isomers are known.

Uses

Copper-based ingredients are often used as coloring agents in cosmetics. Copper itself is nontoxic, but soluble copper salts, notably copper sulfite, are skin irritants. In the body, copper combines with certain proteins to produce a variety of enzymes, which in turn serve as catalysts for different functions. For example, copper plays a role in the keratinization process. In normal skin, this catalytic action is completed in 8 to 12 hours, however more than three days may be required in cases of copper deficiency. Through such enzymatic activity, copper is involved in melanin production, as decreased pigmentation has been observed in cases of copper deficiency. Such enzyme-based action also links copper to maintaining and repairing the skin’s connective tissues (collagen and elastin), as well as to wound healing.

Uses

Copper is a metal that occurs naturally throughout the environment, in rocks, soil, water, and air. Copper is an essential element in plants and animals (including humans), which means it is necessary for us to live. Therefore, plants and animals must absorb some copper from eating, drinking, and breathing.
The use of copper dates back to prehistoric times. The metal, its compounds, and alloys have numerous applications in every sphere of life–making it one of the most important metals. Practically all coinages in the world are made out of copper or its alloys. Its alloys, bronze and brass, date from ancient times. More modern alloys such as monel, gun metals, and berylliumcopper also have wide applications. The metal is an excellent conductor of electricity and heat and is used in electric wiring, switches and electrodes. Other applications are in plumbing, piping, roofing, cooking utensils, construction materials, and electroplated protective coatings. Its compounds, namely the oxides, sulfates, and chlorides, have numerous of commercial applications.
Copper is distributed widely in nature as sulfides, oxides, arsenides, arsenosulfides, and carbonates. It occurs in the minerals cuprite, chalcopyrite, azurite, chalcocite, malachite and bornite. Most copper minerals are sulfides or oxides. Native copper contains the metal in uncombined form.

Uses

manufacture of bronzes, brass, other copper alloys, electrical conductors, ammunition, copper salts, works of art.

General Description

Reddish lustrous malleable odorless metallic solid.

Air & Water Reactions

Solid pieces are very slowly oxidized by air to give a green basic carbonate. Solid pieces become covered by a black oxide when heated in air. Insoluble in water.

Reactivity Profile

Copper combines violently with chlorine trifluoride in the presence of carbon [Mellor 2, Supp. 1, 1956]. Is oxidized by sodium peroxide with incandescence [Mellor 2:490-93, 1946-1947]. Forms an unstable acetylide when acetylene is passed over samples that have been heated enough to form an oxide coating. Reacts more rapidly in powdered or granular form. Subject to explosive reaction then mixed in finely divided form with finely divided bromates chlorates and iodates of barium, calcium, magnesium, potassium, sodium, or zinc; these reactions are initiated by heat, percussion, and occasionally light friction [Mellor 2:310, 1946-1947]. A solution of sodium azide in Copper pipe with lead joints formed Copper azide and lead azide, both of these compounds can detonate [Klotz, 1973].

Safety Profile

Toxic by inhalation. Questionable carcinogen with experimental tumorigenic data. Experimental teratogenic and reproductive effects. Human systemic effects by ingestion: nausea and vomiting. See also COPPER COMPOUNDS. Liquid copper explodes on contact with water. Potentially explosive reaction with acetylenic compounds, 3-bromopropyne, ethylene oxide, lead azide, and ammonium nitrate. Iptes on contact with chlorine, chlorine trifluoride, fluorine (above 121℃), and hydrazinium nitrate (above 70'). Reacts violently with C2H2, bromates, chlorates, iodates, (Cl2 + OF2), dimethyl sulfoxide + trichloroacetic acid, ethylene oxide, H202, hydrazine mononitrate, hydrazoic acid, H2S + air, Pb(N3)2, K2O2, NaN3, Na2O2, sulfuric acid. Incandescent reaction with potassium dioxide. Incompatible with 1 -bromo-2- propyne.

Copper Preparation Products And Raw materials

Raw materials

Preparation Products


Copper Suppliers

Global( 250)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Shenzhen Sendi Biotechnology Co.Ltd.
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Sinopharm Chemical Reagent Co,Ltd. 86-21-63210123
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+86-(0)21-61259102(Shanghai) +86-(0)755-86170066(ShenZhen) +86-(0)10-88580358(Beijing) sh@meryer.com China 40399 62
3B Pharmachem (Wuhan) International Co.,Ltd. 86-21-50328103 * 801、802、803、804 Mobile:18930552037
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