|
NIOSH
Pocket Guide
|
Arsenic (inorganic compounds, as As)
|
CAS 7440-38-2 (metal)
|
|
As (metal) |
RTECS CG0525000 (metal)
|
Synonyms & Trade Names
Arsenic metal: Arsenia
Other synonyms vary depending upon the specific As compound. [Note:
OSHA considers "Inorganic Arsenic" to mean copper acetoarsenite &
all inorganic compounds containing arsenic except ARSINE.]
|
DOT ID & Guide
1558 152 (metal)
1562 152 (dust) |
Exposure
Limits |
NIOSH REL: Ca C 0.002 mg/m3
[15-minute] |
|
OSHA PEL: [1910.1018] TWA 0.010 mg/m3
|
|
IDLH Ca [5 mg/m3 (as
As)] |
Conversion |
Physical Description
Metal: Silver-gray or tin-white, brittle, odorless solid.
|
MW: 74.9
|
BP: Sublimes
|
MLT: 1135°F (Sublimes)
|
Sol: Insoluble
|
VP: 0 mmHg (approx)
|
IP: NA
|
|
Sp.Gr: 5.73 (metal)
|
Fl.P: NA
|
UEL: NA
|
LEL: NA
|
|
|
Metal: Noncombustible Solid in bulk form,
but a slight explosion hazard in the form of dust when exposed to
flame. |
Incompatibilities & Reactivities
Strong oxidizers, bromine azide [Note: Hydrogen gas can react with
inorganic arsenic to form the highly toxic gas arsine.] |
Personal Protection & Sanitation
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated/Daily
Remove: When wet or contaminated
Change: Daily
Provide: Eyewash, Quick drench
|
First Aid
Eye: Irrigate immediately
Skin: Soap wash immediately
Breathing: Respiratory support
Swallow: Medical attention immediately
|
Respirator Recommendations NIOSH
At concentrations above the NIOSH REL, or where there is no
REL, at any detectable concentration: (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 acid
gas canister having a high-efficiency particulate filter/Any
appropriate escape-type, self-contained breathing apparatus
|
|
Exposure Routes inhalation, skin
absorption, skin and/or eye contact ingestion |
|
Symptoms Ulceration of nasal
septum, dermatitis, gastrointestinal disturbances, peripheral
neuropathy, respiratory irritation, hyperpigmentation of skin, [potential
occupational carcinogen] |
Target Organs Liver, kidneys,
skin, lungs, lymphatic system
Cancer Site [lung & lymphatic cancer] |
|
