793523

Zinc chloride

anhydrous, free-flowing, Redi-Dri^™, reagent grade, ≥98%

• Synonym(s): Dichlorozinc
• 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: 329768082
• NACRES: NA.21
• assay: ≥98%
• grade: anhydrous; reagent grade
• form: powder or crystals

Properties

• grade: anhydrous; reagent grade
• Quality Level: 100
• vapor pressure: 1 mmHg ( 428 °C)
• product line: Redi-Dri^™
• assay: ≥98%
• form: powder or crystals
• quality: free-flowing
• pH: 5 (20 °C, 100 g/L)
• mp: 293 °C (lit.)
• SMILES string: [Cl-].[Cl-].[Zn++]

Description

General description

Zinc chloride is a Lewis acid that can be used to promote cycloaddition, substitution, and addition reactions, including electrophilic aromatic additions and selective reductions. It is also used in the preparation of organozinc reagents via transmetalation.

Application

Zinc chloride can be used as a catalyst in the:

• Chemoselective dimethyl acetalization of aldehydes and ketones with trimethyl orthoformate to synthesize dimethyl acetals.
• Synthesis of 9-substituted acridines via Bernthsen reaction.

It can also be used as an additive in the preparation of ultrafiltration membranes.

Legal Information

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

Safety Information

• pictograms: GHS05,GHS07,GHS09
• signalword: Danger
• hcodes: H302,H314,H335,H410
• pcodes: 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: 8B - Non-combustible corrosive hazardous materials
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable