# NIOSH Pocket Guide to Chemical Hazards
Pindone | CAS 83-26-1
C9H5O2C(O)C(CH3)3 | RTECS NK6300000
Synonyms & Trade Names tert-Butyl valone; 1,3-Dioxo-2-pivaloy-lindane; Pival®; Pivalyl; 2-Pivalyl-1,3-indandione | DOT ID & Guide
Exposure Limits | NIOSH REL: TWA 0.1 mg/m3
OSHA PEL: TWA 0.1 mg/m3
IDLH 100 mg/m3 | Conversion
Physical Description Bright-yellow powder with almost no odor. [rodenticide]
MW: 230.3 | BP: Decomposes | MLT: 230°F | Sol(77°F): 0.002%
VP: Very low | IP: ? |  | Sp.Gr: 1.06
Fl.P: ? | UEL: ? | LEL: ? |
Incompatibilities & Reactivities None reported
Measurement Methods None available
Personal Protection & Sanitation Skin: No recommendation Eyes: No recommendation Wash skin: No recommendation Remove: No recommendation Change: Daily | First Aid (See procedures) Eye: Irrigate immediately Breathing: Respiratory support Swallow: Medical attention immediately
Respirator Recommendations NIOSH/OSHA Up to 0.5 mg/m3: (APF = 5) Any dust and mist respirator Up to 1 mg/m3: (APF = 10) Any dust and mist respirator except single-use and quarter-mask respirators/(APF = 10) Any supplied-air respirator Up to 2.5 mg/m3: (APF = 25) Any supplied-air respirator operated in a continuous-flow mode/(APF = 25) Any powered, air-purifying respirator with a dust and mist filter Up to 5 mg/m3: (APF = 50) Any air-purifying, full-facepiece respirator with a high-efficiency particulate filter/(APF = 50) Any supplied-air respirator that has a tight-fitting facepiece and is operated in a continuous-flow mode/(APF = 50) Any powered, air-purifying respirator with a tight-fitting facepiece and a high-efficiency particulate filter/(APF = 50) Any self-contained breathing apparatus with a full facepiece/(APF = 50) Any supplied-air respirator with a full facepiece Up to 100 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 a high-efficiency particulate filter/Any appropriate escape-type, self-contained breathing apparatus
Exposure Routes inhalation, ingestion
Symptoms Epistaxis (nosebleed), excess bleeding from minor cuts, bruises; smoky urine, black tarry stools; abdominal, back pain
Target Organs Blood prothrombin
See also: INTRODUCTION