|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Tetramethyl lead (as Pb) | CAS 75-74-1 | ||
| Pb(CH3)4 | RTECS TP4725000 | ||
|
Synonyms & Trade Names Lead tetramethyl, Tetramethylplumbane, TML |
DOT ID & Guide |
||
|
Exposure Limits |
NIOSH REL: TWA 0.075 mg/m3 [skin] | ||
| OSHA PEL: TWA 0.075 mg/m3 [skin] | |||
| IDLH 40 mg/m3 (as Pb) | Conversion | ||
|
Physical Description Colorless liquid (unless dyed red, orange, or blue) with a fruity odor. [Note: Main usage is in anti-knock additives for gasoline.] |
|||
|
MW: 267.3 |
BP: 212°F (Decomposes) |
FRZ: -15°F |
Sol: 0.002% |
|
VP: 23 mmHg |
IP: 8.50 eV |
|
Sp.Gr: 2.00 |
|
Fl.P: 100°F |
UEL: ? |
LEL: ? |
|
| Class II Combustible Liquid: Fl.P. at or above 100�F and below 140�F. | |||
|
Incompatibilities & Reactivities Strong oxidizers such as sulfuryl chloride or potassium permanganate |
|||
|
Measurement Methods NIOSH 2534 |
|
Personal Protection & Sanitation Skin: Prevent skin contact (>0.1%) Eyes: Prevent eye contact Wash skin: When contaminated (>0.1%) Remove: When wet or contaminated (>0.1%) Change: Daily Provide: Quick drench (>0.1%) |
First Aid (See procedures) Eye: Irrigate immediately Skin: Soap wash immediately Breathing: Respiratory support Swallow: Medical attention immediately |
|
Respirator Recommendations
NIOSH/OSHA Up to 0.75 mg/m3: (APF = 10) Any supplied-air respirator Up to 1.875 mg/m3: (APF = 25) Any supplied-air respirator operated in a continuous-flow mode Up to 3.75 mg/m3: (APF = 50) Any supplied-air respirator that has a tight-fitting facepiece and is 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 Up to 40 mg/m3: (APF = 1000) Any supplied-air respirator 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 |
|
| Exposure Routes inhalation, skin absorption, ingestion, skin and/or eye contact | |
| Symptoms Insomnia, bad dreams, restlessness, anxious; hypotension; nausea, anorexia; delirium, mania, convulsions; coma | |
|
Target Organs
central nervous system, cardiovascular system, kidneys |
|
| See also: INTRODUCTION |