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SILVER

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The Chemical Identifier fields include common identification numbers, the NFPA diamond, U.S. Department of Transportation hazard labels, and a general description of the chemical. The information in CAMEO Chemicals comes from a variety of data sources.
CAS Number UN/NA Number
  • 7440-22-4
none
DOT Hazard Label USCG CHRIS Code
data unavailable none
NIOSH Pocket Guide International Chem Safety Card
Silver (metal dust and soluble compounds, as Ag)external link
NFPA 704
data unavailable
General Description
PHYSICAL DESCRIPTION: Silvery metallic solid. (NTP, 1992)

The Hazard fields include special hazard alerts, air and water reactions, fire hazards, health hazards, a reactivity profile, and details about reactive groups assignments and potentially incompatible absorbents. The information in CAMEO Chemicals comes from a variety of data sources.
Reactivity Alerts
  • Known Catalytic Activity
Air & Water Reactions
Insoluble in water.
Fire Hazard
Dust is flammable. (NTP, 1992)
Health Hazard
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 (NIOSH, 2016)
Reactivity Profile
SILVER reacts violently with chlorine trifluoride (in the presence of carbon) [Mellor 2 Supp. 1 1956]. Bromoazide explodes on contact with silver foil. Acetylene forms an insoluble acetylide with silver [Von Schwartz 1918 p. 142]. When silver is treated with nitric acid in the presence of ethyl alcohol, silver fulminate, which can detonated may be formed. Ethyleneimine forms explosive compounds with silver, hence silver solder should not be used to fabricate equipment for handling ethyleneimine. Finely divided silver and strong solutions of hydrogen peroxide may explode [Mellor 1:936 1946-47)]. Incompatible with oxalic acid and tartaric acid [Nav Aer. 09-01-505 1956]. Silver can form explosive salts with azidrine. ("Ethyleneimine" Brocure 125-521-65, Midland (Mich.), Dow Chemical Co., 1965). Ammonia forms explosive compounds with gold, mercury, or silver. (Eggeman, Tim. "Ammonia" Kirk-Othmer Encyclopedia of Chemical Technology. John Wiley & Sons, Inc. 2001.). Acetylene and ammonia can form explosive silver salts in contact with Ag. (Renner, Hermann, Gunther Schlamp. "Silver, Silver Compounds, and Silver Alloys." Ullmann's Encyclopedia of Industrial Chemistry. Wiley-VCH Verlag GmbH & Co. KGaA. 2001.)
Belongs to the Following Reactive Group(s)
Potentially Incompatible Absorbents

No information available.

The Response Recommendation fields include isolation and evacuation distances, as well as recommendations for firefighting, non-fire response, protective clothing, and first aid. The information in CAMEO Chemicals comes from a variety of data sources.
Isolation and Evacuation
No information available.
Firefighting
A fire in your laboratory involving this chemical should be extinguished with a dry chemical, carbon dioxide or halon extinguisher. (NTP, 1992)
Non-Fire Response
SMALL SPILLS AND LEAKAGE: If you spill this chemical, you should dampen the solid spill material with 5% acetic acid, then transfer the dampened material to a suitable container. Use absorbent paper dampened with 5% acetic acid to pick up any remaining material. Your contaminated clothing and the absorbent paper should be sealed in a vapor-tight plastic bag for eventual disposal. Wash all contaminated surfaces with 5% acetic acid followed by washing with a strong soap and water solution. Do not reenter the contaminated area until the Safety Officer (or other responsible person) has verified that the area has been properly cleaned.

STORAGE PRECAUTIONS: You should store this chemical in a freezer and away from all mineral acids and bases. (NTP, 1992)
Protective Clothing
Skin: Wear appropriate personal protective clothing to prevent skin contact.

Eyes: Wear appropriate eye protection to prevent eye contact.

Wash skin: The worker should immediately wash the skin when it becomes contaminated.

Remove: Work clothing that becomes wet or significantly contaminated should be removed and replaced. (AgNO3)

Change: Workers whose clothing may have become contaminated should change into uncontaminated clothing before leaving the work premise.

Provide: Eyewash fountains should be provided in areas where there is any possibility that workers could be exposed to the substance; this is irrespective of the recommendation involving the wearing of eye protection. (NIOSH, 2016)
DuPont Tychem® Suit Fabrics
No information available.
First Aid
EYES: First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.

SKIN: IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. If symptoms such as redness or irritation develop, IMMEDIATELY call a physician and be prepared to transport the victim to a hospital for treatment.

INHALATION: IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. IMMEDIATELY call a physician and be prepared to transport the victim to a hospital even if no symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used; if not available, use a level of protection greater than or equal to that advised under Protective Clothing.

INGESTION: Some heavy metals are VERY TOXIC POISONS, especially if their salts are very soluble in water (e.g., lead, chromium, mercury, bismuth, osmium, and arsenic). IMMEDIATELY call a hospital or poison control center and locate activated charcoal, egg whites, or milk in case the medical advisor recommends administering one of them. Also locate Ipecac syrup or a glass of salt water in case the medical advisor recommends inducing vomiting. Usually, this is NOT RECOMMENDED outside of a physician's care. If advice from a physician is not readily available and the victim is conscious and not convulsing, give the victim a glass of activated charcoal slurry in water or, if this is not available, a glass of milk, or beaten egg whites and IMMEDIATELY transport victim to a hospital. If the victim is convulsing or unconscious, do not give anything by mouth, assure that the victim's airway is open and lay the victim on his/her side with the head lower than the body. DO NOT INDUCE VOMITING. IMMEDIATELY transport the victim to a hospital. (NTP, 1992)

The Physical Property fields include properties such as vapor pressure and boiling point, as well as explosive limits and toxic exposure thresholds. The information in CAMEO Chemicals comes from a variety of data sources.
Chemical Formula:
  • Ag
Flash Point: data unavailable
Lower Explosive Limit (LEL): data unavailable
Upper Explosive Limit (UEL): data unavailable
Autoignition Temperature: data unavailable
Melting Point: 1763.5 ° F (NTP, 1992)
Vapor Pressure: 1 mm Hg at 2475 ° F (NTP, 1992)
Vapor Density (Relative to Air): data unavailable
Specific Gravity: 10.5 at 68 ° F (NTP, 1992)
Boiling Point: 4014 ° F at 760 mm Hg (NTP, 1992)
Molecular Weight: 107.93 (NTP, 1992)
Water Solubility: Insoluble (NIOSH, 2016)
Ionization Potential: data unavailable
IDLH: 10 mg/m3 (as Ag) (NIOSH, 2016)

AEGLs (Acute Exposure Guideline Levels)

No AEGL information available.

ERPGs (Emergency Response Planning Guidelines)

No ERPG information available.

PACs (Protective Action Criteria)

Chemical PAC-1 PAC-2 PAC-3
Silver (7440-22-4) 0.3 mg/m3 170 mg/m3 990 mg/m3
(DOE, 2016)

The Regulatory Information fields include information from the U.S. Environmental Protection Agency's Title III Consolidated List of Lists, the U.S. Department of Homeland Security's Chemical Facility Anti-Terrorism Standards, and the U.S. Occupational Safety and Health Administration's Process Safety Management of Highly Hazardous Chemicals Standard List (see more about these data sources).

EPA Consolidated List of Lists

Regulatory Name CAS Number/
313 Category Code
EPCRA 302
EHS TPQ
EPCRA 304
EHS RQ
CERCLA RQ EPCRA 313
TRI
RCRA
Code
CAA 112(r)
RMP TQ
Silver 7440-22-4 1000 pounds 313
Silver Compounds N740 & 313

(EPA List of Lists, 2015)

DHS Chemical Facility Anti-Terrorism Standards (CFATS)

No regulatory information available.

OSHA Process Safety Management (PSM) Standard List

No regulatory information available.

This section provides a listing of alternate names for this chemical, including trade names and synonyms.
  • AG-C-GS
  • AG-CO
  • AG-E 350
  • AGC-A
  • ALGAEDYN
  • ARGENTUM
  • ASTROFLAKE 5
  • AX 10C
  • AY 6010
  • AY 6080
  • C 200
  • C 200 (METAL)
  • C.I. 77820
  • C.I. 77870
  • CAREY LEA SILVER
  • D 25
  • D 25 (METAL)
  • 1520D
  • DEGUSSA 67
  • DEGUSSA 80
  • DOTITE XA 208
  • E 20
  • E 20 (METAL)
  • FA 312
  • G 13
  • G 13 (METAL)
  • HCF 38
  • JELCON SH 1
  • KS
  • KS (METAL)
  • L 3
  • L 3 (ELEMENT)
  • L-3
  • LS 500
  • METZ 25B
  • METZ 3000-1
  • METZ 56
  • MMC-SF 25
  • MMC-SF 53
  • PS 652
  • PUFF SILVER X 1200
  • QS 175
  • RT 1710S
  • RT 1710S-C1
  • SD
  • SD (METAL)
  • SF 135
  • SFR-AG
  • SHELL SILVER
  • SILBEST TCG 1
  • SILCOAT AGC-A
  • SILCOAT AGC-B
  • SILCOAT AGC-GS
  • SILCOAT AGC-O
  • SILFLAKE 135
  • SILPOWDER 130
  • SILVER
  • SILVER ATOM
  • SILVER ELEMENT
  • SILVER METAL
  • SILVER METAL: ARGENTUM
  • SPD 2
  • SPD 2 (ELEMENT)
  • SPS 100
  • SR 999
  • TC 20E
  • TCG
  • TCG (METAL)
  • TCG 1
  • TCG 7
  • TCG 7R
  • TECHNIC 299
  • TECHNIC 450
  • V 9
  • V 9 (ELEMENT)

Version 2.7.1