# NIOSH Pocket Guide to Chemical Hazards
Vanadium dust | CAS 1314-62-1
V2O5 | RTECS YW2450000
Synonyms & Trade Names Divanadium pentoxide dust, Vanadic anhydride dust, Vanadium oxide dust, Vanadium pentaoxide dust Other synonyms vary depending upon the specific vanadium compound. | DOT ID & Guide 2862 151
Exposure Limits | NIOSH REL*: C 0.05 mg V/m3 [15-minute] [*Note: The REL applies to all vanadium compounds except Vanadium metal and Vanadium carbide (see Ferrovanadium dust).]
OSHA PEL†: C 0.5 mg V2O5/m3 (resp)
IDLH 35 mg/m3 (as V) | Conversion
Physical Description Yellow-orange powder or dark-gray, odorless flakes dispersed in air.
MW: 181.9 | BP: 3182°F (Decomposes) | MLT: 1274°F | Sol: 0.8%
VP: 0 mmHg (approx) | IP: NA |  | Sp.Gr: 3.36
Fl.P: NA | UEL: NA | LEL: NA |
Noncombustible Solid, but may increase intensity of fire when in contact with combustible materials.
Incompatibilities & Reactivities Lithium, chlorine trifluoride
Measurement Methods NIOSH 7300, 7504; OSHA ID185
Personal Protection & Sanitation Skin: Prevent skin contact Eyes: Prevent eye contact Wash skin: When contaminated Remove: When wet or contaminated Change: No recommendation | First Aid (See procedures) Eye: Irrigate immediately Skin: Soap wash promptly Breathing: Respiratory support Swallow: Medical attention immediately
Respirator Recommendations NIOSH (as V) Up to 0.5 mg/m3: (APF = 10) Any air-purifying respirator with a high-efficiency particulate filter*/(APF = 10) Any supplied-air respirator* Up to 1.25 mg/m3: (APF = 25) Any supplied-air respirator operated in a continuous-flow mode*/(APF = 25) Any powered, air-purifying respirator with a high-efficiency particulate filter* Up to 2.5 mg/m3: (APF = 50) Any air-purifying, full-facepiece respirator with a high-efficiency particulate filter/(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 35 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, skin and/or eye contact
Symptoms Irritation eyes, skin, throat; green tongue, metallic taste, eczema; cough; fine rales, wheezing, bronchitis, dyspnea (breathing difficulty)
Target Organs Eyes, skin, respiratory system
See also: INTRODUCTION