SILVER
SYNONYMS:
ALGAEDYN;
ARGENT (French); ARGENTUM; C.I. 77820; E 20; L 3; EINECS No. 231-131-3;
ELEMENTAL SILVER; METALLIC SILVER; PLATA (Spanish); SHELL SILVER; SILBER
(German); SILFLAFE 135; SILPOWDER 130; SILVER ATOM; SILVER ELEMENT; SILVER
METAL; SILVEST TCG 1; SR 999; TCG 1; TCG 7R; V 9
IDENTIFICATION:
CAS:
7440-22-4
Formula:
Ag
RTECS No:
WW3500000
Properties:
White,
lustrous metal. Insoluble in water.
Uses:
Electroplating;
making jewelry, specialized batteries; bearings; tableware; brazing alloys and
solders; paints.
HEALTH & SAFETY INFORMATION
• IDLH:
10
mg[Ag]/m3 as metal dust.
•
OSHA Table Z-1 Air Contaminant
•
Inhalation of high levels of metallic silver vapors may cause pulmonary edema
and lung damage. Inhalation of dust causes argyrosis. Chronic skin exposure
will cause a blue-gray discoloration (argyria).
Exposure Limits:
•
ACGIH TLV: metal: 0.1 mg[Ag]/m3 TWA; soluble compounds: 0.01 mg[Ag]/m3 TWA
•
OSHA PEL/NIOSH REL: metal, dust, and soluble compounds: 0.01 mg[Ag]/m3 TWA
•
DFG MAK: silver: 0.1 mg[Ag]/m3 salts: 0.01 mg[Ag]/m3
Respirator:
0.25
mg/m3:
SA:CF (any
supplied-air respirator operated in a continuous-flow mode) PAPRHiE (any
powered, air-purifying respirator with a high-efficiency particulate filter).
0.5 mg/m3:
HiEF (any air-purifying, full-facepiece
respirator with a highefficiency particulate filter) SCBAF (any selfcontained
breathing apparatus with a full facepiece) SAF (any supplied-air respirator
with a full facepiece).
10
mg/m3:
SAF:PD,PP (any
supplied-air respirator that has a full facepiece and is operated in a
pressuredemand or other positive-pressure mode).
Note:
Substance causes eye irritation or damage;
eye protection needed.
Emergency
or Planned Entry into Unknown Concentrations or IDLH Conditions
SCBAF:PD,PP (any self-contained breathing
apparatus that has a full facepiece and is operated in a pressuredemand or
other positive-pressure mode) SAF:PD,PP:ASCBA (any supplied-air respirator that
has a full facepiece and is operated in a pressuredemand or other
positive-pressure mode in combination with an auxiliary self-contained
breathing apparatus operated in a pressure-demand or other positive-pressure
mode).
Escape:
HiEF
(any airpurifying, full-facepiece respirator with a highefficiency particulate
filter) SCBAE (any appropriate escape-type, self-contained breathing
apparatus).
Reactivity:
Forms
an explosive compounds with acetylene or ethyleneimine. Reaction with ammonia,
hydrogenperoxide, bromoazide, chlorine trifluoride, oxalic acid, or tartaric
acid may be violent.
FIRE INFORMATION
Noncombustible
solid, but dust or powder is flammable. If material or contaminated runoff
enters waterways, notify downstream users of potentially contaminated water.
FIRST AID:
Eye:
If this chemical contacts
the eyes, immediately wash them with large amounts of water, occasionally
lifting the lower and upper lids. Get medical attention immediately. Contact
lenses should not be worn when working with this chemical.
Skin:
If this chemical contacts the skin,
immediately wash the contaminated skin with soap and water. If this chemical
penetrates the clothing, immediately remove clothing, wash the skin with soap
and water, and get medical attention promptly.
Inhalation:
If a person breathes large amounts of this
chemical, move exposed person to fresh air at once. If breathing has stopped,
perform mouth-to-mouth resuscitation. Keep the affected person warm and at
rest. Get medical attention as soon as possible.
Ingested:
If this chemical has been swallowed, get
medical attention immediately.
ENVIRONMENTAL REGULATIONS
•
Clean Water Act: Section 307 Priority Pollutants; Section 307 Toxic Pollutants
as silver and compounds; Section 313 Priority Chemicals.
•
EPA Hazardous Waste Number (RCRA No.): D011.
•
RCRA Section 261 Hazardous Constituents, waste number not listed.
•
RCRA Toxicity Characteristic (Section 261.24): Maximum Concentration of
Contaminants, regulatory level, 5.0 mg/L
•
Land Ban chemical
•
RCRA Universal Treatment Standards: Wastewater (mg/L), 0.43; Nonwastewater
(mg/L), 0.30 TCLP.
•
RCRA Ground Water Monitoring List: Suggested test method(s) (PQL
μ
g/L): 6010(70); 7760(100).
•
Safe Drinking Water Act: SMCL, 0.1 mg/L.
•
EPCRA Section 304: Reportable Quantity (RQ): CERCLA, 1000 lb (454 kg).
•
EPCRA Section 313: Form R
de
minimis
concentration
reporting level: 1.0%.
•
EPA Best Practical Control Technology Limits for Metal Finishing Effluent:
silver, Maximum 1 day: 0.43 ppm; Daily average/30 consecutive days: 0.24 ppm.
•
California LOL: BCDFGMNPQ