NIOSH Pocket Guide to Chemical Hazards

Silver (metal dust and soluble compounds, as Ag) CAS 7440-22-4 (metal)
Ag (metal) RTECS VW3500000 (metal)
Synonyms & Trade Names
Silver metal: Argentum
Synonyms of soluble silver compounds such as Silver nitrate (AgNO3) vary depending upon the specific compound.
DOT ID & Guide
Exposure
Limits
NIOSH REL: TWA 0.01 mg/m3
OSHA PEL: TWA 0.01 mg/m3
IDLH 10 mg/m3 (as Ag) Conversion
Physical Description
Metal: White, lustrous solid.
MW: 107.9
BP: 3632°F
MLT: 1761°F
Sol: Insoluble
VP: 0 mmHg (approx)
IP: NA

Sp.Gr: 10.49 (metal)
Fl.P: NA
UEL: NA
LEL: NA

Metal: Noncombustible Solid, but flammable in form of dust or powder.
Incompatibilities & Reactivities
Acetylene, ammonia, hydrogen peroxide, bromoazide, chlorine trifluoride, ethyleneimine, oxalic acid, tartaric acid
Measurement Methods
NIOSH 7300; OSHA ID121
Personal Protection & Sanitation
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated
Remove: When wet or contaminated (AgNO3)
Change: Daily
Provide: Eyewash
First Aid (See procedures)
Eye: Irrigate immediately
Skin: Water flush
Breathing: Respiratory support
Swallow: Medical attention immediately
Respirator Recommendations NIOSH/OSHA
Up to 0.25 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 0.5 mg/m3: (APF = 50) Any air-purifying, full-facepiece respirator with 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 10 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 Blue-gray eyes, nasal septum, throat, skin; irritation, ulceration skin; gastrointestinal disturbance
Target Organs Nasal septum, skin, eyes
See also: INTRODUCTION