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Dicofol

Dicofol structure

CAS No:
115-32-2
Formula:
C14H9Cl5O
Chemical Name:
Dicofol
Synonyms:
Benzenemethanol,4-chloro-α-(4-chlorophenyl)-α-(trichloromethyl)-;Benzhydrol,4,4′-dichloro-α-(trichloromethyl)-;4-Chloro-α-(4-chlorophenyl)-α-(trichloromethyl)benzenemethanol;ENT 23,648;1,1-Bis(4-chlorophenyl)-2,2,2-trichloroethanol;1,1-Bis(p-chlorophenyl)-2,2,2-trichloroethanol;CPCA;Dicofol;DTMC;FW 293;Kelthanethanol;2,2,2-Trichloro-1,1-di(4-chlorophenyl)ethanol;Kelthane;Acarin;Mitigan;p,p′-Kelthane;Decofol;Ethanol,2,2,2-trichloro-1,1-bis(4-chlorophenyl)-;Kelthane A;2,2,2-Trichloro-1,1-bis(4-chlorophenyl)ethanol;4,4′-Dichloro-α-(trichloromethyl)benzhydrol;Keltane;Dichlorokelthane;Milbol;2,2,2-Trichloro-1,1-bis(p-chlorophenyl)ethanol;p,p′-Dicofol;Chloretanol;Agravertin;AFD 25;Colonel-S;Dacomain;Dicofol kelthene;55599-54-7
Categories:
Agrochemicals > Insecticides

Description

Pure dicofol is available as a white or grey powder or colourless crystal solid, while the technical dicofol is a red-brown or amber viscous liquid with an odour like fresh-cut hay. Dicofol undergoes decomposition on burning or on contact with acids, acid fumes, or bases producing toxic and corrosive fumes including hydrogen chloride. Dicofol is combustible and incompatible with strong oxidising agents.

Dicofol Basic Attributes

Molecular Weight：

370.49

Exact Mass：

370.49

EC Number：

204-082-0

HScode：

2906299090

Characteristics

PSA：

20.2

XLogP3：

4.28

Appearance：

Dicofol or kelthane is a white crystalline, wettable powder dissolved in a liquid carrier, (water). The primary hazard is the threat to the environment. Immediate steps should be taken to limit its spread to the environment. Since it is a liquid it can easily penetrate the soil and contaminate groundwater and nearby streams. It can cause illness by inhalation, skin absorption, and/or ingestion. It is used as a pesticide.

Density：

1.130 g/cm³ @ Temp: 20 °C

Melting Point：

77-78 °C

Boiling Point：

180 °C @ Press: 0.1 Torr

Flash Point：

11 °C

Refractive Index：

1.6000 (estimate)

Water Solubility：

H2O: Slightly soluble . <0.01 g/100 mL at 22 ºC

Storage Conditions：

APPROX 4°C

Vapor Pressure：

5.3 x 10 -5 Pa

Toxicity：

Oral-rat LD50: 575 mg/kg; Oral-Mouse LD50: 420 mg/kg

Flammability characteristics：

Flammable; decomposes toxic chloride gas when heated

Odor：

Solids have slight characteristic odor

Safety Information

Transport codes：

UN 2761/3077

hazard class code：

21/22-38-43-50/53-39/23/24/25-23/24/25-11

safety instructions：

36/37-60-61-45-16-7

RTECS Number：

DC8400000

Marks：

Xn;N,N,Xn,T,F

Storage features：

The warehouse is ventilated, low temperature and dry; stored and transported separately from food materials

Stability/Shelf Life：

Stable. Combustible. Incompatible with strong oxidizing agents. Hydrolyzes in basic solution. Corrodes some metals.

Precautionary statement(s)：

P273-P280-P501

Hazard Statements：

H302-H312-H315-H317-H410

Toxicity

Toxicity class：

highly toxic

Dicofol Use and Manufacturing

Methods of Manufacturing

It is obtained by chlorination of industrial product DDT under the catalysis of azobisisobutyronitrile. The chloride is then hydrolyzed by formic acid.

Uses

Acaricide, organochlorine pesticide. Dicofol is a non-systemic acaricide/miticide currently registered in the US and Canada for use on a wide variety of crops.

Computed Properties

Molecular Weight:370.5
XLogP3:4.3
Hydrogen Bond Donor Count:1
Hydrogen Bond Acceptor Count:1
Rotatable Bond Count:2
Exact Mass:369.906653
Monoisotopic Mass:367.909603
Topological Polar Surface Area:20.2
Heavy Atom Count:20
Complexity:292
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

Material

Sodium hydroxide

Xylene

Sulfuric acid