Dust entry

Calcium oxide CaO 1305-78-8 EW3100000 25 mg/m3

White or gray, odorless lumps or granular powder. OSHA ID121 Chemical & Physical Properties: Personal Protection/Sanitation Respirator Recommendations MW: 56.1 (see Table 2): (see Tables 3 and 4): BP: 5162°F Skin: Prevent skin contact NIOSH Sol: Reacts Eyes: Prevent eye contact 10 mg/m3: Qm Fl.P: NA Wash skin: When contam/Daily 20 mg/m3: 95XQ/Sa IP: NA Remov

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

Irrit eyes, skin, upper resp tract; ulcer, perf nasal septum; pneu; derm Skin: Water flush immedTarget organs: Eyes, skin, resp sys Breath: Resp support

Evidence

NIOSH Pocket Guide entry: Calcium oxide CaO 1305-78-8 EW3100000 25 mg/m3. Physical description: White or gray, odorless lumps or granular powder. OSHA ID121 Chemical & Physical Properties: Personal Protection/Sanitation Respirator Recommendations MW: 56.1 (see Table 2): (see Tables 3 and 4): BP: 5162°F Skin: Prevent skin contact NIOSH Sol: Reacts Eyes: Prevent eye contact 10 mg/m3: Qm Fl.P: NA Wash skin: When contam/Daily 20 mg/m3: 95XQ/Sa IP: NA Remov

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