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746355

Sigma-Aldrich

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
EC Number:
231-592-0
MDL number:
MFCD00011295
UNSPSC Code:
12352302
PubChem Substance ID:
329765761
NACRES:
NA.21

grade

ACS reagent
anhydrous

Quality Level

100

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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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

H302,H314,H335,H410

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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Guiran Xiao et al.
Cell reports, 26(3), 748-758 (2019-01-17)
Iron metabolism is an essential process that when dysregulated causes disease. Mammalian serum transferrin (TF) plays a primary role in delivering iron to cells. To improve our understanding of the conservation of iron metabolism between species, we investigate here the
E Hjortsø et al.
Intensive care medicine, 14(1), 17-24 (1988-01-01)
Five soldiers were injured by inhalation of hexite smoke (ZnCl2) during military training. Two soldiers, not wearing gas masks breathed hexite for 1 or 2 min, they slowly developed severe adult respiratory distress syndrome (ARDS) over the ensuing 2 weeks.
Aaron Wey et al.
Journal of orthopaedic research : official publication of the Orthopaedic Research Society, 32(6), 834-841 (2014-02-28)
This study evaluated the effect of local zinc chloride (ZnCl2 ), an insulin mimetic agent, upon the early and late parameters of fracture healing in rats using a standard femur fracture model. Mechanical testing, radiographic scoring, histomorphometry, qualitative histological scoring
Use of unlicensed black salve for cutaneous malignancy.
Natalie C Ong et al.
The Medical journal of Australia, 200(6), 314-314 (2014-04-08)
Fen Li et al.
Environmental technology, 35(17-20), 2575-2581 (2014-08-26)
Sludge-activated carbons (SACs) prepared with excess of activated sludge are used to solve the problems of sludge disposal and odour pollution in a sewage treatment plant. For the preparation, ZnCl2, KOH and H2SO4 are used as activators, respectively. The structure
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