8.41799

Calcium hypochlorite

for synthesis

• Synonym(s): Calcium hypochlorite
• Linear Formula: Ca(OCl)₂
• CAS Number: 7778-54-3
• Molecular Weight: 142.98
• MDL number: MFCD00010900
• UNSPSC Code: 12352302
• EC Index Number: 231-908-7
• NACRES: NA.22

Properties

• Quality Level: 200
• form: tablet
• potency: 850 mg/kg LD₅₀, oral (Rat); >2000 mg/kg LD₅₀, skin (Rabbit)
• mp: 100 °C
• density: 2.35 g/cm³ at 20 °C
• storage temp.: 15-25°C
• InChI: 1S/Ca.2ClO/c;2*1-2/q+2;2*-1
• InChI key: ZKQDCIXGCQPQNV-UHFFFAOYSA-N

Description

General description

Calcium hypochlorite [Ca(OCl)₂] is a stable oxidizing agent used for the conversion of ethers to esters; thioethers to sulfoxides; aldehydes to acids and alkenes to chlorohydrins. It is also used in the C-C bond cleavage and chlorination reactions.

Application

Calcium hypochlorite can be used as an oxidative agent:

• In the epoxidation of various alkene derivatives.
• To synthesize α-arylamino-α′-chloropropan-2-ones from various trifluoroacetyl-protected N-(2-chloroallyl)anilines via oxidative hydrolysis.
• To convert 1^o & 2^o alcohols, α-hydroxyamides, and α-hydroxyesters to their corresponding aldehydes, ketones, α-ketoamides, and α-ketoesters in the presence of 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) as a catalyst.
• To prepare dihydrotriazolediones and bis-dihydrotriazolediones by oxidation of urazoles and bis-urazoles.

Analysis Note

Assay (iodometric): 67.0 - 75.0 %
Identity: passes test

Safety Information

• pictograms: GHS03,GHS05,GHS07,GHS09
• signalword: Danger
• hcodes: H272 - H302 - H314 - H400
• pcodes: P210 - P260 - P273 - P280 - P303 + P361 + P353 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 4 Oral - Aquatic Acute 1 - Eye Dam. 1 - Ox. Sol. 2 - Skin Corr. 1B
• supp_hazards: EUH031
• Storage Class: 5.1A - Strongly oxidizing hazardous materials
• wgk_germany: WGK 2