Dust entry

Molybdenum Mo 7439-98-7 QA4680000 5000 mg/m3 (as Mo)

Dark gray or black powder with a metallic luster. Chemical & Physical Properties: Personal Protection/Sanitation Respirator Recommendations MW: 95.9 (see Table 2): (see Tables 3 and 4): BP: 8717°F Skin: N.R. OSHA Sol: Insoluble Eyes: N.R. 75 mg/m3: Qm Fl.P: NA Wash skin: N.R. 150 mg/m3: 95XQ/Sa IP: NA Remove: N.R. 375 mg/m3: Sa:Cf/PaprHie Sp.Gr: 10.28 Change

Airborne form

dust

The form describes what is suspended in air at the point of exposure. A material can produce more than one form, such as dust during handling and fume during heating.

Health effects

In animals: irrit eyes, nose, throat; anor, diarr, low-wgt; Breath: Resp supportTarget organs: Eyes, resp sys, liver, kidneys

Evidence

NIOSH Pocket Guide entry: Molybdenum Mo 7439-98-7 QA4680000 5000 mg/m3 (as Mo). Physical description: Dark gray or black powder with a metallic luster. Chemical & Physical Properties: Personal Protection/Sanitation Respirator Recommendations MW: 95.9 (see Table 2): (see Tables 3 and 4): BP: 8717°F Skin: N.R. OSHA Sol: Insoluble Eyes: N.R. 75 mg/m3: Qm Fl.P: NA Wash skin: N.R. 150 mg/m3: 95XQ/Sa IP: NA Remove: N.R. 375 mg/m3: Sa:Cf/PaprHie Sp.Gr: 10.28 Change

Source: CDC/NIOSH: NIOSH Pocket Guide to Chemical Hazards ↗

Controls

follow the applicable NIOSH REL and OSHA PEL
use exposure monitoring
use engineering and work-practice controls
use appropriate respiratory protection