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Dibutyl phthalate																				Related Pages
Synonyms & Trade Names
			DBP, Dibutyl-1,2-benzene-dicarboxylate, Di-n-butyl phthalate
CAS No.
			84-74-2
	RTECS No.
			TI0875000
	DOT ID & Guide

FormulaC6H4(COOC4H9)2
	Conversion
			1 ppm = 11.57 mg/m3
	IDLH
			4000 mg/m3See: 84742

Exposure Limits
			NIOSH RELTWA 5 mg/m3OSHA PEL TWA 5 mg/m3
	Measurement Methods
			**NIOSH** 5020;**OSHA** 104
					
					See: NMAM or OSHA Methods
										
Physical Description
			Colorless to faint-yellow, oily liquid with a slight, aromatic odor.													
										
Molecular Weight278.3	
	Boiling Point644°F
	Freezing Point-31°F
	Solubility(77°F): 0.001%
	Vapor Pressure0.00007 mmHg
	Ionization Potential?											
Specific Gravity1.05	
	Flash Point315°F
	Upper Explosive Limit?
	Lower Explosive Limit(456°F): 0.5%
Class IIIB Combustible Liquid: Fl.P. at or above 200°F.
Incompatibilities & Reactivities
			Nitrates; strong oxidizers, alkalis & acids; liquid chlorine
Exposure Routes
			inhalation, ingestion, skin and/or eye contact
Symptoms
			irritation eyes, upper respiratory system, stomach
Target Organs
			Eyes, respiratory system, gastrointestinal tract
										
Personal Protection/Sanitation
			(See protection codes) **Skin:**No recommendation
							**Eyes:**Prevent eye contact
							**Wash skin:**No recommendation
							**Remove:**No recommendation
							**Change:**No recommendation
	First Aid
			(See procedures)**Eye:**Irrigate immediately
							**Skin:**Wash regularly
							**Breathing:**Respiratory support
							**Swallow:**Medical attention immediately
Respirator Recommendations
			**NIOSH/OSHA****Up to 50 mg/m3**:(APF = 10) Any air-purifying full-facepiece respirator equipped with an N95, R95, or P95 filter. The following filters may also be used: N99, R99, P99, N100, R100, P100. Click here for information on selection of N, R, or P filters.**Up to 125 mg/m3**: (APF = 25) Any supplied-air respirator operated in a continuous-flow mode£(APF = 25) Any powered, air-purifying respirator with a high-efficiency particulate filter.£**Up to 250 mg/m3**:(APF = 50) Any air-purifying, full-facepiece respirator with an N100, R100, or P100 filter. Click here for information on selection of N, R, or P filters.(APF = 50) Any self-contained breathing apparatus with a full facepiece(APF = 50) Any supplied-air respirator with a full facepiece**Up to 4000 mg/m3**: (APF = 2000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode**Emergency or planned entry into unknown concentrations or IDLH conditions:** (APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus**Escape:**(APF = 50) Any air-purifying, full-facepiece respirator with an N100, R100, or P100 filter. Click here for information on selection of N, R, or P filters.Any appropriate escape-type, self-contained breathing apparatus
					Important additional information about respirator selection
See also
			INTRODUCTION
					  ICSC CARD: 0036

			
							

			Page last reviewed:  October 30, 2019						Content
							source: 	National Institute for Occupational Safety and Health NIOSH Pocket Guide to Chemical Hazards
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Appendices
A – NIOSH Potential Occupational Carcinogens
B – Thirteen OSHA-Regulated Carcinogens
C – Supplementary Exposure Limits
D – Substances with No Established RELs
E – OSHA Respirator Requirements for Selected Chemicals
F – Miscellaneous Notes
G – 1989 Air Contaminants Update Project: Exposure Limits NOT in Effect
Type C & CE – Definitions for Type C and Type CE Respirators
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