ethylan (Perthane) Chemical Profile 4/85
CHEMICAL NAME: 1,1-Dichloro-2,2-bis(4-ethylphenyl) ethane (56)
DEC INGRED. CODE:
TRADE NAME(S): Perthane (56)
FORMULATION(S): Available as an 88% active technical. Also available
in aerosol cans for mothproofing (1).
TYPE: Organochlorine insecticide
BASIC PRODUCER(S): Rohm and Haas Co.
Independence Mall West
Philadelphia, PA 19105
STATUS: Product discontinued by Rohm and Haas Co (56).
PRINCIPAL USES: Limited registration for insects on fruit and
vegetables. Used for home mothproofing and for moths and carpet beetles
in dry cleaning and textile industries (1).
To be developed.
II. PHYSICAL PROPERTIES
MOLECULAR FORMULA: C18 H20 Cl2 (26)
MOLECULAR WEIGHT: 307.3 (26)
PHYSICAL STATE: Crystalline solid (pure compound); wax (technical
MELTING POINT: 60-61 C (pure compound); greater than or equal to
40 C (technical product) (26).
SOLUBILITY: Practically insoluble in water (26)
III. HEALTH HAZARD INFORMATION
OSHA STANDARD: None established
NIOSH RECOMMENDED LIMIT: None established
ACGIH RECOMMENDED LIMIT: None established
A. ACUTE TOXICITY
ORAL: LD50 = 8170 mg/kg (rat); 6600 mg/kg (mouse) (26).
B. SUBACUTE AND CHRONIC TOXICITY:
In 2-yr feeding trials rats receiving 500 mg/kg diet suffered no
mortality or ill-effect on their blood (26).
IV. ENVIRONMENTAL CONSIDERATIONS
Little or no hazard to birds, fish and beneficial insects.
Moderately hazardous to honey bees. Biological magnification unlikely.
Russeting reported on some pears (1).
Approximate Residual Period: 1-2 weeks on plants and inert surfaces.
May protect clothes from moths up to 1 year (1).
V. EMERGENCY AND FIRST AID PROCEDURES
The chemical information provided below has been condensed
from original source documents, primarily from "Recognition and
Management of Pesticide Poisonings", 3rd ed. by Donald P. Morgan,
which have been footnoted. This information has been provided in
this form for your convenience and general guidance only. In
specific cases, further consultation and reference may be required
and is recommended. This information is not intended as a sub-
stitute for a more exhaustive review of the literature nor for the
judgement of a physician or other trained professional.
If poisoning is suspected, do not wait for symptoms to develop.
Contact a physician, the nearest hospital, or the nearest Poison
FREQUENT SYMPTOMS AND SIGNS OF POISONING BY ORGANOCHLORINE PESTICIDES
APPREHENSION, EXCITABILITY, DIZZINESS, HEADACHE, DISORIENTATION,
WEAKNESS, PARESTHESIAE, muscle twitching, tremor, tonic and clonic
CONVULSIONS (often epileptiform), and unconsciousness are the major
manifestations. Soon after ingestion, nausea and vomiting commonly
occur. When chemicals are absorbed dermally, apprehension, twitching,
tremors, confusion, and convulsions may be the first symptoms.
Respiratory depression is caused by the pesticide and by the petroleum
solvents in which these pesticides are usually dissolved. Pallor occurs
in moderate to severe poisoning. Cyanosis may result as convulsive
activity interferes with respiration (25).
SKIN CONTACT: Bathe and shampoo the victim vigorously with soap
and water if skin and hair have been contaminated (25).
INGESTION: If victim is alert and gag reflex is not depressed, give
Syrup of Ipecac to induce vomiting (adults and children 12 years and
older: 30 ml; children under 12: 15 ml), followed by 1-2 glasses of water
NOTES TO PHYSICIAN:
CONTROL CONVULSIONS. DIAZEPAM (VALIUM (TM)) is a valuable
Adult dosage: 5-10 mg (1-2 ml) slowly, intravenously (no faster than
one ml per minute) or give total dose intramuscularly (deep). Repeat
in 2-4 hours if needed.
Dosage for children under 6 years or 23 kg in weight: 0.1 mg/kg (0.02
ml/kg) intravenously, no faster than half the total dose per minute, or
give total dose intramuscularly (deep). Repeat in 2-4 hours if needed.
Persons suffering SEVERE PROTRACTED CONVULSIONS may require additional
anticonvulsant medication. Agents that have been used successfully in
the past are pentobarbital (Numbutal (TM)), phenytoin (Dilantin (TM)),
thiopental (Pentothal (TM)), and succinylcholine (Anectine (TM)).
If the victim is NOT FULLY ALERT, empty the stomach immediately by
INTUBATION, ASPIRATION, and LAVAGE, using isotonic saline or 5% sodium
bicarbonate. Because many pesticides are dissolved in petroleum
distillates, emesis and intubation of the stomach involve a serious
risk that solvent will be aspirated, leading to chemical pneumonitis.
DO NOT give epinephrine or other adrenergic amines, because of the
enhanced myocardial irritability induced by chlorinated hydrocarbons
VI. FIRE AND EXPLOSION INFORMATION
To be developed.
Usually not mixed with other materials (1).
VIII. PROTECTIVE MEASURES
To be developed.
IX. PROCEDURES FOR SPILLS AND LEAKS
IN CASE OF EMERGENCY, CALL, DAY OR NIGHT
PESTICIDE TEAM SAFETY NETWORK/CHEMTREC
X. LITERATURE CITED
1. Harding, W.C. 1979. Pesticide profiles, part one: insecticides
and miticides. Univ. Maryland, Coop. Ext. Serv. Bull. 267.
25. Morgan, D.P. 1982. Recognition and management of
pesticide poisonings, 3rd ed. U. S. Environmental Protection
Agency, Washington, DC. 120 pp.
26. The Pesticide Manual: A World Compendium, 6th ed. 1979. C. R.
Worthing, ed. The British Crop Protection Council, Croydon,
England. 655 pp.
56. Farm Chemicals Handbook, 70th ed. 1984. R. T. Meister, G. L.
Berg, C. Sine, S. Meister, and J. Poplyk, eds. Meister
Publishing Co., Willoughby, OH.