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1,3-Dichloro-5,5-dimethylhydantoin |
CAS 118-52-5 | ||
C5H6Cl2N2O2 |
RTECS MU0700000 | ||
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Synonyms & Trade Names Dactin, DDH, Halane |
DOT ID & Guide |
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Exposure
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NIOSH REL: TWA 0.2 mg/m3 ST 0.4 mg/m3 | ||
| OSHA PEL†: TWA 0.2 mg/m3 | |||
| IDLH 5 mg/m3 See: 118525 | Conversion | ||
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Physical Description White powder with a chlorine-like odor. |
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MW: 197.0 |
BP: ? |
MLT: 270°F |
Sol: 0.2% |
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VP: ? |
IP: ? |
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Sp.Gr: 1.5 |
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Fl.P: 346°F |
UEL: ? |
LEL: ? |
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| Combustible Solid | |||
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Incompatibilities & Reactivities Water, strong acids, easily oxidized materials such as ammonia salts & sulfides |
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Measurement Methods None available See: NMAM or OSHA Methods |
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Personal Protection & Sanitation (See protection) Skin: Prevent skin contact Eyes: Prevent eye contact Wash skin: When contaminated Remove: When wet or contaminated Change: Daily Provide: Eyewash |
First Aid (See procedures) Eye: Irrigate immediately Skin: Soap wash promptly Breathing: Respiratory support Swallow: Medical attention immediately |
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Important additional information about respirator selection Respirator Recommendations NIOSH/OSHA Up to 2 mg/m3: (APF = 10) Any supplied-air respirator Up to 5 mg/m3: (APF = 25) Any supplied-air respirator operated in a continuous-flow mode (APF = 50) Any self-contained breathing apparatus with a full facepiece (APF = 50) Any supplied-air respirator with a full facepiece 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 canister providing protection against the compound of concern and having 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 |
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| Exposure Routes inhalation, ingestion, skin and/or eye contact | |
| Symptoms Irritation eyes, mucous membrane, respiratory system | |
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Target Organs
Eyes, respiratory system |
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| See also: INTRODUCTION |