Propoxur

  • PHC
  • 2-(1-Methylethoxy)phenyl methylcarbamate
  • Phenol, 2-(1-methylethoxy)-Methylcarbamate
  • 2-Isopropoxyphenyl methylcarbamate
Formula
C11H15NO3
Structure
Description
White to tan crystalline powder with a faint, characteristic odor.
Uses
Insecticide, molluscicide.

Registry Numbers and Inventories.
CAS
114-26-1
EC (EINECS/ELINCS)
204-043-8
EC Index Number
006-016-00-4
EC Class
Toxic; Dangerous for the Environment
RTECS
FC3150000
RTECS class
Agricultural Chemical and Pesticide; Mutagen; Reproductive Effector; Human Data
UN (DOT)
2757
Merck
12,8022
Beilstein/Gmelin
1879891
RCRA
U411
EPA OPP
47802
Swiss Giftliste 1
G-1753
Canada DSL/NDSL
DSL
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C11H15NO3
Formula mass
209.25
Melting point, °C
91.5
Boiling point, °C
290
Vapor pressure, mmHg
3E-6 (25 C)
Critical temperature
483
Critical pressure
26.0
Density
1.12 g/cm3 (20 C)
Solubility in water
2 g/L
Partition coefficient, pKow
1.52

Hazards and Protection.
Storage
Store in original container, preferably in locked area, away from children, food, feed.
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Protection
Protective measures should including clean overalls daily. Impervious shoes, rubber gloves (mixer only), washing of hands and face following each pump charge. Wear appropriate eye protection and protective clothing to prevent skin and eye contact.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Cover with plastic sheet to prevent spreading. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS.
Stability
Unstable in highly alkaline media, 50% loss @ 20 C in 40 min @ pH 10.
Incompatibilities
Incompatible with the following: Strong oxidizers, alkalis.
Decomposition
Dangerous. When heated to decomposition it emits highly toxic fumes of methyl isocyanate.

Fire.
Flash Point,°C
>93
Fire fighting
Use method most appropriate to fight surrounding fire.
Fire potential
Non-Combustible
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Exposure limit(s)
TLV: ppm; 0.5 mg/m3 (ACGIH 1993-199?). NIOSH REL: TWA 0.5 mg/m3
Poison_Class
3
Exposure effects
In severe poisoning, respiratory depression, mental confusion, unconsciousness, brain hemorrhages, and seizures may occur. Children may be more susceptible to seizures than adults. Headache, blurred vision, tremor, paresis, mental depression, coma, delayed neuropathies, various dystonias, weakness, muscle twitching may be noted.
   Ingestion
Nausea, vomiting, diarrhea, and abdominal cramping have been reported and are common.
   Inhalation
Dyspnea, wheezing, rales, increased bronchial secretions, respiratory muscle weakness and respiratory failure may occur. Usual cause of death is respiratory failure.
   Skin
A possible occupational effect is contact dermatitis. Diaphoresis may be seen after exposure. Cellulitis was seen after injection of household spray.
   Eyes
Constriction of the pupil and blurred vision are common. Mydriasis may occur.

First aid
 
   Ingestion
Do not induce emesis. Activated charcoal: administer charcoal as a slurry (240 ml water/30 g charcoal). Usual dose: 25 to 100 g in adults/adolescents.
   Inhalation
Move victim to fresh air. Apply artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult.
   Skin
Remove contaminated clothing and jewelry. Wash the skin, including hair and nails, vigorously; do repeated soap washings. Discard contaminated clothing.
   Eyes
Irrigate exposed eyes with copious amounts of tepid water for at least 15 minutes. If irritation, pain, swelling, lacrimation, or photophobia persist, the patient should be seen in a health care facility.

Transport.
UN number
2757
Response guide
Hazard class
6.1
Packing Group
I; II; III
 
USCG CHRIS Code
PXR