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746355

Zinc chloride

anhydrous, free-flowing, Redi-Dri™, ACS reagent, ≥97%

Synonym(s):

Dichlorozinc

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About This Item

Linear Formula:
ZnCl2
CAS Number:
7646-85-7
Molecular Weight:
136.30
NACRES:
NA.21
PubChem Substance ID:
329765761
UNSPSC Code:
12352302
EC Number:
231-592-0
MDL number:
MFCD00011295
Assay:
≥97%
Grade:
ACS reagent, anhydrous
Form:
powder, crystals or granules
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Quality Segment

100

grade

ACS reagent, anhydrous

vapor pressure

1 mmHg ( 428 °C)

product line

Redi-Dri™

assay

≥97%

form

powder, crystals or granules

quality

free-flowing

reaction suitability

reagent type: catalyst
core: zinc

impurities

Oxychloride, passes test, ≤0.005% insolubles

pH

5 (20 °C, 100 g/L)

mp

293 °C (lit.)

anion traces

nitrate (NO3-): ≤0.003%, sulfate (SO42-): ≤0.01%

cation traces

Ca: ≤0.06%, Fe: ≤0.001%, K: ≤0.02%, Mg: ≤0.01%, NH4+: ≤0.005%, Na: ≤0.05%, Pb: ≤0.005%

SMILES string

[Cl-].[Cl-].[Zn++]

InChI

1S/2ClH.Zn/h2*1H;/q;;+2/p-2

InChI key

JIAARYAFYJHUJI-UHFFFAOYSA-L

General description

Zinc chloride (ZnCl2) is an inorganic compound that is commonly used as a reagent in chemical synthesis. It is used as a mild Lewis acid catalyst in cycloaddition, substitution, electrophilic aromatic additions, and selective reduction reactions. ZnCl2 is also a useful starting material for the synthesis of many organozinc reagents via transmetalation reaction.

Application

Zinc chloride can be used as:     
  • A catalyst to synthesize 5-substituted 1H-tetrazoles by [3 + 2] cycloaddition reaction of organic nitriles with sodium azide.      
  • A reagent to promote the hydrolysis of NaBH4 for the generation of hydrogen.      
  • A reagent for the activation of carbon materials.

Legal Information

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

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Danger

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Corr. 1B - STOT SE 3

target_organs

Respiratory system

Storage Class

8B - Non-combustible corrosive hazardous materials

flash_point_f

Not applicable

flash_point_c

Not applicable

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