746355

Zinc chloride

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

• Synonym(s): Dichlorozinc
• Linear Formula: ZnCl₂
• CAS Number: 7646-85-7
• Molecular Weight: 136.30
• EC Number: 231-592-0
• MDL number: MFCD00011295
• PubChem Substance ID: 329765761
• NACRES: NA.21

Properties

• 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 (SO₄^2-): ≤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

Description

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

Safety Information

• Pictograms: GHS05,GHS07,GHS09
• Signal Word: Danger
• Hazard Statements: H302 - H314 - H335 - H410
• Precautionary Statements: P260 - P273 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338
• 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