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Sigma-Aldrich

Copper(II) chloride dihydrate

≥99.95% trace metals basis

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Synonym(s):
Cupric chloride dihydrate
Linear Formula:
CuCl2 · 2H2O
CAS Number:
Molecular Weight:
170.48
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.22

vapor density

>1 (vs air)

Quality Level

Assay

≥99.95% trace metals basis

form

solid

reaction suitability

core: copper
reagent type: catalyst

impurities

≤0.01% insolubles
≤500 ppm total metallic impurities

mp

100 °C (dec.) (lit.)

anion traces

nitrate (NO3-): ≤0.015%
sulfate (SO42-): ≤0.005%

cation traces

Ca: ≤0.005%
Fe: ≤0.005%
K: ≤0.01%
Na: ≤0.02%
Ni: ≤0.01%

SMILES string

Cl[Cu]Cl.[H]O[H].[H]O[H]

InChI

1S/2ClH.Cu.2H2O/h2*1H;;2*1H2/q;;+2;;/p-2

InChI key

MPTQRFCYZCXJFQ-UHFFFAOYSA-L

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Application

Chlorinating agent; oxidizing agent; Lewis acid; catalyst for conjugate additions and acylation.

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 2 - Eye Dam. 1 - Skin Irrit. 2

Storage Class Code

8A - Combustible, corrosive hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

危险化学品

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Laura Engel et al.
Sensors (Basel, Switzerland), 19(5) (2019-03-13)
A fast and sensitive method to monitor hydrogen sulfide (H₂S) in ambient air based on a visible color change of a printed disposable sensor has been developed. As gas-sensitive material, an immobilized copper(II) complex of the azo dye 1-(2-pyridylazo)-2-naphtol (H-PAN)
A convenient synthesis of alpha,beta-acetylenic ketones.
P Li et al.
The Journal of organic chemistry, 66(11), 4087-4090 (2001-05-26)
María S Islas et al.
Inorganic chemistry, 53(11), 5724-5737 (2014-05-16)
A new Cu(II) complex with the antihypertensive drug telmisartan, [Cu8Tlm16]·24H2O (CuTlm), was synthesized and characterized by elemental analysis and electronic, FTIR, Raman and electron paramagnetic resonance spectroscopy. The crystal structure (at 120 K) was solved by X-ray diffraction methods. The
Wenfeng Jiang et al.
Science (New York, N.Y.), 368(6491), 642-648 (2020-04-11)
The structural complexity of composite biomaterials and biomineralized particles arises from the hierarchical ordering of inorganic building blocks over multiple scales. Although empirical observations of complex nanoassemblies are abundant, the physicochemical mechanisms leading to their geometrical complexity are still puzzling
Mónica João Barros Amorim et al.
Environmental pollution (Barking, Essex : 1987), 164, 164-168 (2012-03-01)
Environmental effects of copper nanoparticles are little studied in terrestrial ecosystems. In the present article, the toxicity of copper nanoparticles (Cu-NP) on the enchytraeid Enchytraeus albidus is compared to the toxicity of a copper-salt (CuCl(2)). The effect parameters studied were

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