Dibutyl phthalate

Synonyms

Di-n-butyl phthalate; 1,2-Benzenedicarboxylic acid, dibutyl ester; AI-3-00283; Benzene-o-dicarboxylic acid di-n-butyl ester; Butyl phthalate; Celluflex DPB; DBP; DBP (ester); Di-n-butyl phthalate; Di-n-butylester kyseliny ftalove [Czech]; Dibutyl 1,2-benzenedicarboxylate; Dibutyl phthalate; Dibutyl-o-phthalate; Elaol; Ergoplast FDB; Ersoplast FDA; Genoplast B; Hatcol DBP; Hexaplas M/B; Kodaflex DBP; N-Butylphthalate; PX 104; Palatinol C; Phthalate, di-n-butyl; Phthalate, dibutyl-; Polycizer DBP; RC Plasticizer DBP; Staflex DBP; Uniflex DBP; Unimoll db; Witcizer 300; n-Butyl phthalate; o-Benzenedicarboxylic acid, dibutyl ester; [ChemIDplus] UN9095

Category

Phthalate Esters

Description

Colorless to faint-yellow, oily liquid with a slight, aromatic odor; [NIOSH]

Sources/Uses

Plasticizer (added to polymers to effect flexibility and/or toughness); also used as an insect repellant in clothing and a solvent for perfumes, oils, and textiles; [ACGIH] Used in epoxy resins as a non-reactive solvent; [Kanerva, p. 1779]

Comments

The heated compound is an irritant to the eyes and respiratory tract. [ACGIH] Allergic contact dermatitis reported in workers handling epoxy resins; [Kanerva, p. 1779] Causes contact urticaria; [Kanerva, p. 219] In high-dose reproductive studies of rats and mice, DEHP and other phthalates cause testicular damage to males and increased fetal losses and malformations to pregnant females. [Frazier, p. 350-2]

Reference Link #1

Biomedical References

Insufficient data

5 mg/m3

5 mg/m3

0.58 mg/m3 (can also occur as vapor and aerosol)

4000 mg/m3

Excerpts from Documentation for IDLHs

The revised IDLH for dibutyl phthalate is 4,000 mg/m3 based on acute inhalation toxicity data in animals [Izmerov et al. 1982]. [Note: Due to its low volatility, this concentration could only be reached at elevated temperatures or if the liquid droplets become airborne as in a mist.]

2.01E-05 mm Hg

LC50 (mice) = 25,000 mg/m3/2H

Explanatory Notes

Flash point = 315 deg F;

Whole body (animal studies): virtually all eliminated within 48 hours; [TDR, p. 473]

Reference Link #2

must be preheated

Yes

Yes

Diseases

Occupational diseases associated with exposure to this agent:

• Contact dermatitis, allergic
• Contact urticaria

Processes

Industrial Processes with risk of exposure:

• Painting (Pigments, Binders, and Biocides)
• Plastic Composites Manufacturing
• Textiles (Fiber & Fabric Manufacturing)