Diisobutyl phthalate

  • Di-iso-butyl phthalate
  • hexaplas m/1b
  • Isobutyl phthalate
  • Palatinol ic
Formula
C16H22O4
Structure
Description
Clear, colorless, viscous liquid.
Uses
Plasticizer.

Registry Numbers and Inventories.
CAS
84-69-5
EC (EINECS/ELINCS)
201-553-2
R 62 63
RTECS
TI1225000
RTECS class
Mutagen; Reproductive Effector
Beilstein/Gmelin
2054802
Beilstein Reference
4-09-00-03177
Swiss Giftliste 1
G-3183
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C16H22O4
Formula mass
278.35
Melting point, °C
-64
Boiling point, °C
296
Vapor pressure, mmHg
2.00E-06 (25 C)
Vapor density (air=1)
9.59
Density
1.049 g/cm3 (15 C)
Solubility in water
20.3 mg/L (20 C)
Viscosity
2.08 cp (80 C)
Refractive index
1.491 (20 C)
Partition coefficient, pKow
4.11
Heat of vaporization
100.1 kJ/mol

Hazards and Protection.
Storage
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Handling
Wash thoroughly after handling. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation.
Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container.
Disposal code
1
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizers.
Decomposition
Irritating and toxic fumes and gases.

Fire.
Flash Point,°C
169
Autoignition, °C
420
Upper exp. limit, %
3.2
Lower exp. limit, %
0.8
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam.
Fire potential
This chemical is combustible.
Health
1
 
Flammability
1
 
 
Reactivity
0
 

Health.
Poison_Class
4
Exposure effects
Dizziness occurred in a human exposure to 10 g of dbp. Polyneuritis was reported in one soviet study. There have been several animal and laboratory tests done on the possible teratogenic effect of DBP. The results have been mixed. Studies done on Salmonella cultures have shown mildly positive mutagenic responses. DBP appears to affect females more than males, at least in the rodent studies performed.
   Ingestion
Ingestion of large amounts may cause gastrointestinal irritation. Low hazard for usual industrial handling.
   Inhalation
Causes irritation of mucous membrane.
   Skin
May cause skin irritation.
   Eyes
May cause eye irritation.

First aid
 
   Ingestion
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid.
   Inhalation
Remove from exposure to fresh air immediately. Get medical aid if cough or other symptoms appear.
   Skin
Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists.
   Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Transport.
USCG CHRIS Code
DIT
 
HS Code
2917 34 00
 
IMO Chemical Code
17
IMO Pollution Category
B
IMO Hazard code
P