Acetyl tributyl citrate

  • Tributyl o-acetylcitrate
  • Citroflex a
  • Citroflex a 4
  • Tributyl 2-acetoxy-1,2,3-Propanetricarboxylate
  • Tributyl acetylcitrate
Formula
C20H34O8
Structure
Description
Colorless oily, liquid. Very faint sweet, herbaceous odor.
Uses
Flavor ingredient.

Registry Numbers and Inventories.
CAS
77-90-7
EC (EINECS/ELINCS)
201-067-0
RTECS
TZ8330000
RTECS class
Other
Beilstein/Gmelin
2303316
Swiss Giftliste 1
G-3300
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C20H34O8
Formula mass
402.49
Boiling point, °C
418
Vapor pressure, mmHg
3E-7 (25 C)
Density
1.046 g/cm3 (25 C)
Solubility in water
5 mg/L (20 C)
Viscosity
42.7 cp at 25C
Partition coefficient, pKow
6.92
Heat of vaporization
67.2

Hazards and Protection.
Storage
Keep in a well ventilated area. Keep container tightly closed. Keep awaw from moisture.
Handling
Avoid breathing vapors or mist. Avoid contact. Do not consume food or drink in area.
Protection
Chemical splash goggles in compliance with OSHA regulations are advised; however, OSHA regulations also permit other type safety glasses. Whre chemical resistant gloves. To prevent repeated or prolonged skin contact, wear impervious clothing and boots.
Respirators
NIOSH/MSHA approved respirator appropriate for exposure of concern.
Small spills/leaks
Using appropriate protective equipment, soak up with sawdust, sand or other absorbent. Flush spill area with water.
Disposal code
1
Stability
Stable.
Incompatibilities
Strong oxidizing agents.
Decomposition
Various organic vapors, oxides of carbon.

Fire.
Flash Point,°C
175
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use agent most appropriate to extinguish fire.

Health.
Poison_Class
-
Exposure effects
   Ingestion
Nausea, vomiting and diarrhea are possible if ingested.
   Inhalation
Cough, tachypnea, and wheezing are common after inhalation.
   Skin
Redness, swelling and pain may occur.

First aid
 
   Ingestion
Emesis is not indicated due to the irritant nature of these agents. Charcoal - not recommended; it may promote vomiting and make endoscopic evaluation difficult. Dilution: immediately dilute with 4 to 8 ounces (120 to 240 ml) of milk or water (not to exceed 4 ounces/120 ml in a child). Neutralization - neutralization is not indicated. Although these agents are irritants, and therefore should not produce tissue damage, it is almost impossible to assure that a particular substance under a particular set of circumstances would not cause damage. Therefore, each patient should be examined with the idea that mucous membrane damage might have occurred.
   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. Wash exposed area with soap and water. If symptoms persist, seek medical attention. Launder clothing before reuse.
   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. If in a medical facility, sterile saline should be used to irrigate the eyes until the cul de sac is returned to neutrality. Some alkali exposures may require prolonged irrigation.

Transport.
HS Code
2918 15 00