Dimethylphthalate
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CAS
131-11-3
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C6H4(COOCH3)2
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RTECS
TI1575000
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Synonyms & Trade Names
Dimethyl ester of 1,2-benzenedicarboxylic acid; DMP
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DOT ID & Guide
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Exposure
Limits
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NIOSH REL: TWA 5 mg/m3
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OSHA PEL: TWA 5 mg/m3
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IDLH
2000 mg/m3
See: 131113
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Conversion
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Physical Description
Colorless, oily liquid with a slight, aromatic odor. [Note: A solid below 42°F.]
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MW: 194.2
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BP: 543°F
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FRZ: 42°F
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Sol: 0.4%
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VP: 0.01 mmHg
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IP: 9.64 eV
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Sp.Gr: 1.19
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Fl.P: 295°F
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UEL: ?
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LEL(358°F): 0.9%
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Class IIIB Combustible Liquid; however, ignition is difficult.
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Incompatibilities & Reactivities
Nitrates; strong oxidizers, alkalis & acids
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Measurement Methods
OSHA 104
See: NMAM or OSHA Methods |
Personal Protection & Sanitation (See protection)
Skin: No recommendation
Eyes: Prevent eye contact
Wash skin: No recommendation
Remove: No recommendation
Change: No recommendation
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First Aid (See procedures)
Eye: Irrigate promptly
Skin: Wash regularly
Breathing: Respiratory support
Swallow: Medical attention immediately
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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
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Exposure Routes
inhalation, ingestion, skin and/or eye contact
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Symptoms
Irritation eyes, upper respiratory system; stomach pain
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Target Organs
Eyes, respiratory system, gastrointestinal tract
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See also: INTRODUCTION
See ICSC CARD: 0261 See MEDICAL TESTS: 0086
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