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Copper, diaqua-

HCID 30154
NotesReactions
Basic informationNames & identifiersPropertiesSafety & regulationChemistry & industryRelated reactionsCompound notes
Substructure searchFind similar structures

Basic information

CAS
20427-59-2
Standard SMILES
O.O.[Cu]
InChIKey
AEJIMXVJZFYIHN-UHFFFAOYSA-N
Molecular formula
CuH4O2
Average molar mass
99.58 g/mol
Monoisotopic mass
98.950726

Names & identifiers

Preferred name
Copper, diaqua-
IUPAC
copper;dihydrate
English name
Cupric hydroxide
Molecular formula
CuH2O2
Molecular weight
97.56

Names & synonyms

Copper, diaqua-DTXSID901319073243448-36-4RefChem:1082199DTXCID601746798copper;dihydrateCopper hydroxide (Cu(OH)2)KuprablauParasolChampCuzinKocide
Show more names
COPPER HYDROXIDECu(OH)2copper dihydroxideCOPPER(II) HYDROXIDECOPPER HYDRATECooper HydroxideComac
WetcolCupravit blauComac ParasolCupravit BlueBlue ShieldTechnical HydroxFunguran OHKOP Hydroxide

Database identifiers

CAS
20427-59-2、243448-36-4
PubChem CID
30154

Properties

Computed structural properties

Topological polar surface area
2 Ų
Hydrogen bond donors
2
Hydrogen bond acceptors
2
Rotatable bonds
0
Heavy atoms
3
Formal charge
0
Complexity
2.8

Physicochemical properties

Density
3.4 · 3.4
vapor pressure
0 Pa · 0Pa at 25℃
storage temp.
2 · Inert atmosphere,2-8°C
solubility
2 O: · H2O: insoluble(lit.)
form
Powder
color
Blue
PH
7.69 · 7.69(1 mM solution);7.69(10 mM solution);7.69(100 mM solution)
Water Solubility
Slightly soluble in waterSoluble in acids, ammonium hydroxide, dilute hydrochloric acid, concentrated alkali and potassium cyanide. Insoluble in water, ethanol, and acetone.
Sensitive
Hygroscopic
Merck
14 · 14,2642
Solubility Product Constant (Ksp)
19.66 · pKsp: 19.66
Exposure limits
1 mg/m3NIOSH: · ACGIH: TWA 1 mg/m3NIOSH: IDLH 100 mg/m3; TWA 1 mg/m3
Stability
Stable, but hygroscopic. Store in dry conditions.
InChI
1S/Cu.2H2O/h;2*1H2/q+2;;/p-2
InChIKey
JJLJMEJHUUYSSY-UHFFFAOYSA-L

Safety & regulation

Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.

Safety data

wgk
3
tsca
TSCA listed
rtecs
GL7600000
ridadr
3262
hs_code
28255000
risk_code
22-37/38-41-50/53-23
Signal word
Danger
Symbol(GHS)
GHS05,GHS06,GHS09
hazard_code
Xn,N,T
safety_code
26-36-39
Storage Class
6.1B - Non-combustible acute toxic Cat. 1 and 2very toxic hazardous materials
Hazard statements
H302-H318-H330-H410
REACH Registrations
Active
Hazard Classifications
Acute Tox. 2 InhalationAcute Tox. 4 OralAquatic Acute 1Aquatic Chronic 1Eye Dam. 1
Precautionary statements
P260-P273-P280-P301+P312-P304+P340+P310-P305+P351+P338
Hazardous Substances Data
20427-59-2(Hazardous Substances Data)

Chemistry & industry

Applications · 5 items

DescriptionCupric hydroxide appears as a blue powder and it is not stable. Cupric hydroxide is used as a mordant and pigment, in the manufacture of many copper salts, and for staining paper. It is used as a fungicide/bactericide on fruits, vegetables, and ornamentals. It can be used as catalyst, feed additive, and a cuprammonium rayon process reagent to make the first semi-synthetic fiber product, Rayon. Furthermore, cupric hydroxide is used in the wood preservative products in aqueous systems.

UsesCopper(II) hydroxide has been used as an alternative to the Bordeaux mixture, a fungicide and nematicide. The orthorhombic nature of copper hydroxide crystals was determined by X ray diffraction. Copper hydroxide can act as a heterogeneous catalyst in the selective oxidative cross coupling of terminal alkynes to yield their corresponding ynamides. Copper(II) hydroxide is also occasionally used as ceramic colorant. Used as an active precursor in the production of copper(II) compounds. Ammonia-processed copper(II) hydroxide is used in the production of copper(II) naphthenate, copper(II) 2-ethylhexanoate, and copper soaps. Ammonia-processed copper(II) hydroxide is also used in the production of rayon (Schweiter's reagent) and in the stabilization of nylon; as a feed additive, a catalyst in the vulcanization of polysulfide rubber, and an antifouling pigment. Copper hydroxide based monoliths can be used in the synthesis of copper hydroxide-based monolithic xerogels. Potential applications of this metal organic frameworks (MOFs) include gas storage, separation, drug delivery, and biomedicine. Supported Cu(OH)x can be used as a catalyst for the aerobic cross dehydrogenative coupling of benzenethiols and cyclic amides to yield N-acylsulfenamides.

UsesUsed as a raw material in chemical processing and catalyst manufacturing. Copper(II) hydroxide is used as ceramic colorant. In organic synthesis, it is used as a catalyst to prepare 1-((2-aminoethyl)amino)anthraquinone, 1-amino-4-((2-aminoethyl)amino)anthraquinone by reacting with 1-bromoanthraquinone or 1-amino-4-bromoanthraquinone respectively. It is involved in the synthesis of benzoic acid and octanoic acid. It is used as a precursor in the production of rayon, battery electrodes and other copper salts It is also used as a dye mordant, paper colorant, pigment and feed additive.

UsesIn manufacture of rayon, battery electrodes, other Cu salts; as mordant in dyeing; as pigment; in fungicides, insecticides; as feed additive; in treating and staining paper; in preparation of Schweitzer's reagent; in catalysts.

Related reactions

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Compound notes

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On this pageBasic informationNames & identifiersPropertiesSafety & regulationChemistry & industryRelated reactionsCompound notes
SMILES
O[Cu]O
FDA 21 CFR
582.8 · 582.80
CAS DataBase Reference
20427 · 20427-59-2(CAS DataBase Reference)
EWG's Food Scores
1 · 1
FDA UNII
3314 XO9W9A · 3314XO9W9A
NIST Chemistry Reference
Copper hydroxide(20427-59-2)
EPA Substance Registry System
Cupric hydroxide (20427-59-2)
Pesticides Freedom of Information Act (FOIA)
Copper hydroxide
UNSPSC Code
12352302 · 12352302
NACRES
23 · NA.23
Symbol(GHS)
5 · GHS05,GHS06,GHS09
Signal word
Danger
Hazard statements
302 · H302-H318-H330-H410
Precautionary statements
260 · P260-P273-P280-P301+P312-P304+P340+P310-P305+P351+P338
Hazard Codes
Xn,N,T
Risk Statements
22 · 22-37/38-41-50/53-23
Safety Statements
26 · 26-36-39
RIDADR
3262 · 3262
WGK Germany
3 · 3
RTECS
7600000 · GL7600000
TSCA
TSCA listed
HS Code
28255000 · 28255000
Storage Class
6.1 B · 6.1B - Non-combustible acute toxic Cat. 1 and 2very toxic hazardous materials
Hazard Classifications
2 InhalationAcute · Acute Tox. 2 InhalationAcute Tox. 4 OralAquatic Acute 1Aquatic Chronic 1Eye Dam. 1
Hazardous Substances Data
20427 · 20427-59-2(Hazardous Substances Data)
REACH Registrations
Active

General DescriptionThe orthorhombic nature of copper hydroxide crystals was determined by X ray diffraction. Copper hydroxide can act as a heterogeneous catalyst in the selective oxidative cross coupling of terminal alkynes to yield their corresponding ynamides.

Preparation methods · 1 item

PreparationCopper(II) hydroxide is produced by a reaction of copper oxychloride in an aqueous suspension with alkali hydroxide or alkaline earth metal hydroxide in the presence of a stabilizing agent and the product is separated and washed. Cu(NO3)2 + NaOH --->Cu(OH)2 + NaNO3 Add a magnetic stirring bar to the beaker and place the flask on a microscale magnetic stirrer. At room temperature, with stirring, carefully add 6M NaOH solution dropwise until the solution is basic to red litmus paper. Use a capillary tube to remove sample for pH testing. A light blue precipitate of copper(II) hydroxide is formed as this reaction is carried out. Make sure the litmus paper has actually changed from red to blue, rather than simply being colored blue by the blue precipitate.

Upstream & downstream products

Upstream raw materials

Copper(II) sulfate

Downstream products

Copper(II) sulfate pentahydrateCopper(I) chlorideCopper(II) sulfate

Suppliers100 total

国药集团化学试剂有限公司86-21-63210123 · [email protected]
北京华美互利生物化工010-56205725 · [email protected]
上海阿拉丁生化科技股份有限公司400-6206333 13167063860 · [email protected]
Shandong chuangyingchemical Co., Ltd.18853181302 · [email protected]
南通润丰石油化工有限公司66017690 19952660367 · [email protected]
上海康朗生物科技有限公司021-61998208 18217752821 · [email protected]
Baoji Guokang Healthchem co.,ltd+8615604608665 15604608665 · [email protected]
Dayang Chem (Hangzhou) Co.,Ltd.+86-0571-88938639 17705817739 · [email protected]
Hebei Yanxi Chemical Co., Ltd.+86-17531190177 · [email protected]
科瑞迪化学400-821-5857 021-64326257 · [email protected]
武汉吉业升化工有限公司15387013945 · [email protected]
阿法埃莎(中国)化学有限公司400-6106006 · [email protected]
安耐吉化学&3A(安徽泽升科技股份有限公司)400-0056266 · [email protected]
武汉吉业升化工有限公司13545274181 15307147230 · [email protected]
北京绿百草科技发展有限公司010-61136123 · [email protected]
上海瀚鸿科技股份有限公司021-54306202 13764082696 · [email protected]
山东洛克化工有限公司17653113209 13065062079 · [email protected]
上海景颜化工科技有限公司13817811078 · [email protected]
合肥天健化工有限公司551-65418679 15856988503;15837135945 · [email protected]
山东西亚化学有限公司13355009207 13355009207 · [email protected]
四川库利南科技有限公司400-1166-196 18981987031 · [email protected]
天津希恩思生化科技有限公司400 638 7771 · [email protected]
武汉吉业升化工有限公司027-13545242311 13545242311 · [email protected]
斯百全化学(上海)有限公司021-021-021-67601398-809-809-809 15221380277 · [email protected]
东江环保股份有限公司0755-88242785 18188622508 · [email protected]
艾科试剂4008-755-333 18080918076 · [email protected]
上海遐瑞医药科技有限公司+86 21 61551611
武汉普洛夫生物科技有限公司17612776928 · [email protected]
上海将来实业股份有限公司400-0066400 13621662912 · [email protected]
日照力德士化工有限公司010-51268198 · [email protected]
美岚实业(上海)有限公司021-58958189 · [email protected]
上海爱蝶实业有限公司021-58957966 18930537195 · [email protected]
成都零六生物科技有限公司400-1166-196 13458535857 · [email protected]
上海麦克林生化科技股份有限公司15221275939 15221275939 · [email protected]
杭州杰恒化工有限公司0571-87396432 · [email protected]
成都润泽本土化工有限公司13096311329 028-88469284 616445927 · [email protected]
湖北巨胜科技有限公司027-59599241 18871490274 · [email protected]
池州凯隆进出口贸易有限公司[email protected]
Sigma-Aldrich西格玛奥德里奇(上海)贸易有限公司021-61415566 800-8193336 · [email protected]
九鼎化学(上海)科技有限公司4009209199 · [email protected]
上海卜微应用材料技术有限公司021-64112762 18930491979 · [email protected]
山东智尚新材料有限公司+8617653113209 · [email protected]
Alfa Chemistry+1-5166625404 · [email protected]
武汉吉业升化工有限公司15307169873 · [email protected]
廊坊乾耀科技有限公司0316-2132008 19932680339 · [email protected]
湖北兴银河化工有限公司13437271305 · [email protected]
陕西缔都医药化工有限公司+86-29-81139210 +86-17392587031 · [email protected]
北京华威锐科化工科技有限公司89508211 18501085097 · [email protected]
艾万拓威达优尔国际贸易(上海)有限公司400-821-8006 · [email protected]
上海西陇生化科技有限公司021-52907766-8042