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Dimethylphthalate																				Related Pages
Synonyms & Trade Names
			Dimethyl ester of 1,2-benzenedicarboxylic acid, DMP
CAS No.
			131-11-3
	RTECS No.
			TI1575000
	DOT ID & Guide

FormulaC6H4(COOCH3)2
	Conversion
	IDLH
			2000 mg/m3See: 131113

Exposure Limits
			NIOSH RELTWA 5 mg/m3OSHA PEL TWA 5 mg/m3
	Measurement Methods
			**OSHA** 104
					
					See: NMAM or OSHA Methods
										
Physical Description
			Colorless, oily liquid with a slight, aromatic odor.
					[Note: A solid below 42°F.]													
										
Molecular Weight194.2	
	Boiling Point543°F
	Freezing Point42°F
	Solubility0.4%
	Vapor Pressure0.01 mmHg
	Ionization Potential9.64 eV											
Specific Gravity1.19	
	Flash Point295°F
	Upper Explosive Limit?
	Lower Explosive Limit(358°F): 0.9%
Class IIIB Combustible Liquid: Fl.P. at or above 200°F.; however, ignition is difficult.
Incompatibilities & Reactivities
			Nitrates; strong oxidizers, alkalis & acids
Exposure Routes
			inhalation, ingestion, skin and/or eye contact
Symptoms
			irritation eyes, upper respiratory system; stomach pain
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 promptly
							**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 2000 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: 0261

			
							

			Page last reviewed:  October 30, 2019						Content
							source: 	National Institute for Occupational Safety and Health NIOSH Pocket Guide to Chemical Hazards
Introduction
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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
Personal Protection and Sanitation Codes
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