Butocarboxim

  • 3-(Methylthio)-O-(N-methylcarbamoyl)oxime-2-butanone
  • 3-(Methylthio)-O-(methylamino)carbonyl)oxime-2-butanone
  • 3-(Methylthio)-2-butanone O-(methylcarbamoyl)oxime
Formula
C7H14N2O2S
Structure
Description
Pale brown, viscous liquid (technical grade). Crystalline at lower temperatures
Uses
Systemic insecticide. For sucking insects, especially Aleurotrixus floccosus in citrus; Bemisia tabaci in cotton; aphids in vegetables fruit trees; ornamentals in hydroculture.

Registry Numbers and Inventories.
CAS
34681-10-2
EC (EINECS/ELINCS)
252-139-3
EC Index Number
006-083-00-X
10 23/24/25 36 50/53
36/37 45 60 61
RTECS
EL9215000
RTECS class
Agricultural Chemical and Pesticide
UN (DOT)
2811
Beilstein/Gmelin
2087348
Beilstein Reference
6-04
Austrailia AICS
Listed
Korea ECL
Listed

Properties.
Formula
C7H14N2O2S
Formula mass
190.29
Melting point, °C
32 - 37
Density
1.12 g/cm3 (20 C)
Solubility in water
35 g/L (20 C)
pKa/pKb
13.83 (pKa)

Hazards and Protection.
Storage
Keep tightly closed.
Protection
Compatible chemical-resistant gloves. Chemical safety goggles.
Respirators
Government approved respirator.
Small spills/leaks
Sweep up, place in a bag and hold for waste disposal. Avoid raising dust. Ventilate area and wash spill site after material pickup is complete.
Stability
Stable at normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents.
Decomposition
When heated to decomposition it emits toxic fumes of /nitrogen and sulfur oxides.

Fire.
Fire fighting
Extinguish using Water spray. Carbon dioxide, dry chemical powder, or appropriate foam. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.
Fire potential
Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.
Hazards
Emits toxic fumes under fire conditions.
Combustion products
When heated to decomposition it emits toxic fumes of /nitrogen and sulfur oxides.
Health
2
 
Flammability
0
 
 
Reactivity
0
 

Health.
Exposure effects
Toxic. Dangerous for the environment. Toxic by inhalation, in contact with skin and if swallowed. Irritating to eyes. Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
   Ingestion
The signs and symptoms can be categorized into the following 3 groups: (a) Muscarinic manifestations - increased bronchial secretion, excessive sweating salivation, and lachrymation; pinpoint pupils, bronchoconstriction abdominal cramps (vomiting and diarrhea); and bradycardia. (b) Nicotinic manifestations - fasciculation of fine muscles (in severe cases, diaphragmand respiratory muscles also involved); and tachycardia. (c) Central mental confusion, convulsions, and coma; and depression of respiratory center All these signs and symptoms can occur in different combinations and can vary in onset and sequence, depending on the chemical, dose, and route of exposure.
   Inhalation
See ingestion.
   Skin
Slightly irritating.
   Eyes
Moderately irritating.

First aid
 
   Ingestion
Rinse mouth and administer 5 ml/kg up to 200 ml of water for dilution if the patient can swallow, has a strong gag reflex, and does not drool. Administer activated charcoal.
   Inhalation
Establish a patent airway. Suction if necessary Aggressive airway control may be needed. Watch for signs of respiratory insufficiency and assist ventilations if necessary. Administer oxygen by nonrebreather mask at 10 to 15 L/min. Monitor for pulmonary edema, shock or seizures and treat if necessary.
   Skin
Remove contaminated clothing, wash effected area with copious amounts of water for at least 15 minutes.
   Eyes
Irrigate exposed eyes with copious amounts of room temperature 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
2811
Response guide
Hazard class
6.1
Packing Group
III