Phosphorus (yellow)
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CAS
7723-14-0
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P4
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RTECS
TH3500000
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Synonyms & Trade Names
Elemental phosphorus, White phosphorus
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DOT ID & Guide
1381 / 136
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Exposure
Limits
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NIOSH REL: TWA 0.1 mg/m3
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OSHA PEL: TWA 0.1 mg/m3
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IDLH
5 mg/m3
See: 7723140
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Conversion
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Physical Description
White to yellow, soft, waxy solid with acrid fumes in air. [Note: Usually shipped or stored in water.]
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MW: 124.0
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BP: 536°F
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MLT: 111°F
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Sol: 0.0003%
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VP: 0.03 mmHg
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IP: ?
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Sp.Gr: 1.82
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Fl.P: ?
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UEL: ?
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LEL: ?
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Flammable Solid
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Incompatibilities & Reactivities
Air, oxidizers (including elemental sulfur & strong caustics), halogens [Note: Ignites SPONTANEOUSLY in moist air.]
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Measurement Methods
NIOSH 7905
See: NMAM or OSHA Methods |
Personal Protection & Sanitation (See protection)
Skin: Prevent skin contact* [*Note: Flame retardant personal protective equipment should be provided.]
Eyes: Prevent eye contact
Wash skin: When contaminated
Remove: When wet or contaminated
Change: Daily
Provide: Eyewash, Quick drench
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First Aid (See procedures)
Eye: Irrigate immediately
Skin: Water flush immediately
Breathing: Respiratory support
Swallow: Medical attention immediately
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Respirator Recommendations
NIOSH/OSHA
Up to 1 mg/m3:
(APF = 10) Any supplied-air respirator
Up to 2.5 mg/m3:
(APF = 25) Any supplied-air respirator operated in a continuous-flow mode£
Up to 5 mg/m3:
(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: 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, respiratory tract; eye, skin burns; abdominal pain, nausea, jaundice; anemia; cachexia; dental pain, salivation, jaw pain, swelling
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Target Organs
Eyes, skin, respiratory system, liver, kidneys, jaw, teeth, blood
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See also: INTRODUCTION
See ICSC CARD: 0628 See MEDICAL TESTS: 0188
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