1,1-Dichloro-2,2-bis(4-chlorophenyl)ethane , >98.0%(GC) , 72-54-8

Synonym(s):
1,1-Dichloro-2,2-bis(4-chlorophenyl)ethane;4,4′-DDD;TDE

CAS NO.：72-54-8

Empirical Formula: C14H10Cl4

Molecular Weight: 320.04

MDL number: MFCD00000851

EINECS: 200-783-0

PRODUCT Properties

• Melting point: 94-96 °C
• Boiling point: 405.59°C (rough estimate)
• Density: 1.385 g/cm3
• vapor density: 11
• vapor pressure: 8.25, 12.2 at 25 °C (subcooled liquid vapor pressure calculated from GC retention time data,Hinckley et al., 1990)
• refractive index: 1.6000 (estimate)
• Flash point: 11 °C
• storage temp.: APPROX 4°C
• solubility: Chloroform: Slightly Soluble
• form: Solid
• color: Crystalline white solid
• Water Solubility: 90ug/L(25 ºC)
• Merck: 3061
• BRN: 1914072
• Henry's Law Constant: 3.27 at 5 °C, 5.63 at 15 °C, 7.30 at 20 °C, 9.47 at 25 °C, 20.7 at 35 °C:in 3% NaCl solution: 3.95 at 5 °C, 7.70 at 15 °C, 15.8 at 25 °C, 27.6 at 35 °C (gas stripping-GC, Cetin et al., 2006)
• Stability: Stable. Incompatible with strong oxidizing agents.
• CAS DataBase Reference: 72-54-8(CAS DataBase Reference)
• EPA Substance Registry System: p,p'-DDD (72-54-8)

Description and Uses

4,4'-Dichlorodiphenyldichloroethane is a synthetic organochlorine insecticide. 4,4'-Dichlorodiphenyldichloroethane is a metabolite of 4,4'-Dichlorodiphenyltrichloroethane (D434195). 4,4'-Dichlorodiphenyldichloroethane is a probable carcinogen (Group B2).

Safety

• Symbol(GHS): GHS06,GHS08,GHS09
• Signal word: Danger
• Hazard statements: H301-H312-H351-H410
• Precautionary statements: P201-P273-P280-P301+P310+P330-P302+P352+P312
• Hazard Codes: T,N,F
• Risk Statements: 21-25-40-50/53-39/23/24/25-23/24/25-11-52/53
• Safety Statements: 36/37-45-60-61-16-7
• RIDADR: UN 2811 6.1/PG 3
• WGK Germany: 3
• RTECS: KI0700000
• HS Code: 2903.99.8001
• HazardClass: 6.1(b)
• PackingGroup: III
• Hazardous Substances Data: 72-54-8(Hazardous Substances Data)
• Toxicity: EC50 (96-hour) for catfish <2.6 mg/L; LC50 (24-hour) for brown shrimp 6.8 μg/L (salt water); acute oral LD50 for rats 3,400 mg/kg (Verschueren, 1983), 113 mg/kg (RTECS, 1985).