Diisooctyl phthalate

  • 1,2-Benzenedicarboxylic acid, diisooctylester
Formula
C24H38O4
Structure
Description
Oily colorless liquid with a slight ester odor.
Uses
Plasticizer for poly vinyl chloride jackets for building wire.

Registry Numbers and Inventories.
CAS
27554-26-3
EC (EINECS/ELINCS)
248-523-5
RTECS
TI1300000
RTECS class
Primary Irritant
Beilstein/Gmelin
NA
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C24H38O4
Formula mass
390.62
Melting point, °C
-4
Boiling point, °C
370
Vapor pressure, mmHg
6E-6 (25 C)
Vapor density (air=1)
13.5
Density
0.984 g/cm3 (20 C)
Solubility in water
Insoluble
Viscosity
83 cp @ 20C

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
Use of garments to protect workmen from irritation due to contact with phthalic anhydride which is used in the manufacturing process of phthalic acid esters; gloves should be used to prevent contamination of the hand and lower arm. Synth of phthalates require good ventilation in order to minimize contamination of air with phthalic anhydride or alcohols. There may be also some need for skin protection. Handling mineral acids used as catalysts requires ordinary precautions.
Respirators
Use NIOSH/MSHA approved respirator appropriate for exposure of concern.
Small spills/leaks
Evacuate area and ventilate. Wear protective equipment. If required, use an inert absrobent. Sweep up and place in an appropriate container for disposal. Wash contaminated surfaces.
Stability
No data.
Incompatibilities
Reacts exothermically with acids to generate isooctyl alcohol and phthalic acid Strong oxidizing acids may cause a vigorous reaction that is sufficiently exothermic to ignite the reaction products Interaction with caustic solutions.
Decomposition
When heated to decomposition it emits acrid smoke and irritating fumes.

Fire.
Flash Point,°C
231
Autoignition, °C
393
Upper exp. limit, %
5.3
Lower exp. limit, %
0.3
Fire fighting
Fire Extinguishing Agents Not to Be Used: Water or foam may cause frothingFire Extinguishing Agents: Dry chemical, carbon dioxide, foam.
Hazards
None
Combustion products
None
Health
1
 
Flammability
1
 
 
Reactivity
0
 

Health.
Exposure effects
Central nervous system depression may occur with ingestion of large amounts.
   Ingestion
Gi tract or esophageal irritation may occur.
   Inhalation
Respiratory irritation is uncommon, but possible.
   Skin
Dermal irritation may sometimes develop.
   Eyes
Irritation of eyes, nose, and throat may occur.

First aid
 
   Ingestion
Seek medical attention. If individual is drowsy or unconscious, do not give anything by mouth; place individual on the left side with the head down. Contact a physician, medical facility, or poison control center for advice about whether to induce vomiting. If possible, do not leave individual unattended.
   Inhalation
Move patient to fresh air. Monitor for respiratory distress. If cough or difficulty breathing develops, evaluate for respiratory tract irritation, bronchitis, or pneumonitis. Administer oxygen and assist ventilation as required. Treat bronchospasm with beta2 agonist and corticosteroid aerosols.
   Skin
Remove contaminated clothing and wash exposed area thoroughly with soap and water. A physician should examine the area if irritation or pain persists.
   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.
USCG CHRIS Code
DIO
 
IMO Chemical Code
18
IMO Pollution Category
III