Dinitrocyclohexylphenol

  • 2,4-Dinitro-6-cyclohexylphenol
  • 2-Cyclohexyl-4,6-dinitrophenol
  • Dinitro-o-cyclohexylphenol
  • Dinex
Formula
C12H14N2O5
Structure
Description
Yellow crystals.
Uses
Insecticide, especially in control of citrus red mite.

Registry Numbers and Inventories.
CAS
131-89-5
EC (EINECS/ELINCS)
205-042-5
EC Index Number
609-028-00-3
EC Class
Toxic; Dangerous for the Environment
RTECS
SK6650000
RTECS class
Agricultural Chemical and Pesticide; Primary Irritant
UN (DOT)
9026
Merck
12,2802
Beilstein/Gmelin
2005960
Beilstein Reference
4-06-00-03903
RCRA
P034
EPA OPP
37501
Swiss Giftliste 1
G-1572

Properties.
Formula
C12H14N2O5
Formula mass
266.25
Melting point, °C
107.2
Vapor density (air=1)
9.2
Solubility in water
Slightly soluble
pKa/pKb
4.52 (pKa)
Partition coefficient, pKow
4.12

Hazards and Protection.
Storage
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
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
Wear self-contained breathing apparatus and full protective clothing. Remove and isolate contaminated clothing and shoes. If the material is contacted, immediately flush skin or eyes with running water for at least 15 minutes.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
ELIMINATE all ignition sources (no smoking, flares, sparks or flames in immediate area). Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Prevent entry into waterways, sewers, basements or confined areas. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS.
Stability
Appear to be stable in acid solution, but are susceptible to decomposition by UV radiation in alkaline solution.
Incompatibilities
Reacts with oxidizing materials and combustibles If mixed with reducing agents, including hydrides, sulfides and nitrides, they may begin a vigorous reaction that culminates in a detonation Reacts as weak organic acids Incompatible with strong reducing substances such as hydrides, nitrides, alkali metals, and sulfides.
Decomposition
When heated to decomposition it emits toxic fumes of oxides of nitrogen.

Fire.
Fire fighting
Fire Extinguishing Agents: Water, dry chemical, carbon dioxide, foam
Fire potential
Does not ignite readily.
Hazards
When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards.
Combustion products
Can detonate or explode when heated under confinement.

Health.
Exposure effects
Blood pressure, pulse, respiratory rate, and temperature may all be elevated after exposure. In severe poisoning, restlessness, seizures, and coma may occur. Animal studies show developmental malformations involving the neurologic, ophthalmic, urologic, and skeletal systems of offsprings.
   Ingestion
Nausea, vomiting, and abdominal pain may be prominent.
   Inhalation
Dyspnea, tachypnea, cyanosis, and pulmonary edema may occur.
   Skin
Yellow staining of skin occurs following contact with nitrophenols. Diaphoresis is common.
   Eyes
Cataracts, secondary glaucoma, symblepharon, paresis of accomodation, and nystagmus have been reported.

First aid
 
   Ingestion
Seek medical assistance.
   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
Wash affected areas of skin and hair vigorously with soap and water. Dermal exposure is usually accompanied by a yellowish discoloration which does not have to be removed completely to prevent absorption.
   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
9026
Response guide
Hazard class
6.1
USCG CHRIS Code
DCY