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| Naphthalene diisocyanate | CAS 3173-72-6 | ||
| C10H6(NCO)2 | RTECS NQ9600000 | ||
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Synonyms & Trade Names 1,5-Diisocyanatonaphthalene; 1,5-Naphthalene diisocyanate; 1,5-Naphthalene ester of isocyanic acid; NDI |
DOT ID & Guide |
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Exposure Limits |
NIOSH REL: TWA 0.040 mg/m3 (0.005 ppm) C 0.170 mg/m3 (0.020 ppm) [10-minute] | ||
| OSHA PEL: none | |||
| IDLH N.D. | Conversion 1 ppm = 8.60 mg/m3 | ||
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Physical Description White to light-yellow, crystalline flakes. |
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MW: 210.2 |
BP: 505°F |
MLT: 261°F |
Sol: ? |
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VP(75°F): 0.003 mmHg |
IP: ? |
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Sp.Gr: ? |
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Fl.P(oc): 311°F |
UEL: ? |
LEL: ? |
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| Combustible Solid | |||
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Incompatibilities & Reactivities None reported |
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Measurement Methods OSHA PV2046 |
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Personal Protection & Sanitation Skin: Prevent skin contact Eyes: Prevent eye contact Wash skin: When contaminated Remove: When wet or contaminated Change: Daily |
First Aid (See procedures) Eye: Irrigate immediately Skin: Soap wash immediately Breathing: Respiratory support Swallow: Medical attention immediately |
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Respirator Recommendations
NIOSH Up to 0.05 ppm: (APF = 10) Any supplied-air respirator* Up to 0.125 ppm: (APF = 25) Any supplied-air respirator operated in a continuous-flow mode* Up to 0.25 ppm: (APF = 50) Any self-contained breathing apparatus with a full facepiece/(APF = 50) Any supplied-air respirator with a full facepiece Up to 1 ppm: (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 (gas mask) with a chin-style, front- or back-mounted organic vapor canister/Any appropriate escape-type, self-contained breathing apparatus |
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| Exposure Routes inhalation, ingestion, skin and/or eye contact | |
| Symptoms Irritation eyes, nose, throat; respiratory sensitization, cough, pulmonary secretions, chest pain, dyspnea (breathing difficulty); asthma | |
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Target Organs
Eyes, respiratory system |
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| See also: INTRODUCTION |