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746355

Sigma-Aldrich

Zinc chloride

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

Synonym(s):
Dichlorozinc
Linear Formula:
ZnCl2
CAS Number:
Molecular Weight:
136.30
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

grade

ACS reagent
anhydrous

Quality Level

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

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

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SAFC

1.28221

Zinc chloride

SAFC

SAFC

1.28220

Zinc chloride

grade

ACS reagent, anhydrous

grade

-

grade

-

grade

-

vapor pressure

1 mmHg ( 428 °C)

vapor pressure

-

vapor pressure

1 mmHg ( 428 °C)

vapor pressure

-

assay

≥97%

assay

≥98.0% (AT)

assay

-

assay

-

form

powder, crystals or granules

form

powder or crystals

form

-

form

powder

impurities

Oxychloride, passes test, ≤0.005% insolubles

impurities

-

impurities

endotoxins, low

impurities

-

pH

5 (20 °C, 100 g/L)

pH

-

pH

-

pH

-

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

Signal Word

Danger

Hazard Statements

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 Code

8B - Non-combustible, corrosive hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

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