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NIOSH

SILVER NITRATE

ICSC: 1116

AgNO3
Molecular mass: 169.89
ICSC # 1116 		CAS # 7761-88-8
RTECS # VW4725000
UN # 1493
EC # 047-001-00-2
March 24, 1998 Validated

TYPES OF HAZARD/ EXPOSURE

ACUTE HAZARDS/ SYMPTOMS

PREVENTION

FIRST AID/
FIRE FIGHTING

FIRE Not combustible but enhances combustion of other substances. Gives off irritating or toxic fumes (or gases) in a fire.
NO contact with flammable substances.
Water in large amounts. In case of fire in the surroundings: all extinguishing agents allowed.
EXPLOSION

In case of fire: keep drums, etc., cool by spraying with water.
EXPOSURE
PREVENT DISPERSION OF DUST! STRICT HYGIENE!

•INHALATION Sore throat. Cough. Burning sensation. Shortness of breath. Laboured breathing. Blue lips or finger nails. Blue skin. Dizziness. Headache. Nausea. Confusion. Convulsions. Unconsciousness. Symptoms may be delayed (see Notes).
Local exhaust or breathing protection.
Fresh air, rest. Artificial respiration may be needed. Refer for medical attention.
•SKIN Pain. Redness. Skin burns. Blisters. (Further see Inhalation).
Protective gloves. Protective clothing.
First rinse with plenty of water, then remove contaminated clothes and rinse again. Refer for medical attention.
•EYES Redness. Pain. Severe deep burns. Loss of vision.
Face shield, or eye protection in combination with breathing protection if powder.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
•INGESTION Abdominal pain. Burning sensation. Shock or collapse. (Further see Inhalation).
Do not eat, drink, or smoke during work.
Rinse mouth. Do NOT induce vomiting. Refer for medical attention.

SPILLAGE DISPOSAL

STORAGE

PACKAGING & LABELLING

Sweep spilled substance into sealable containers; if appropriate, moisten first to prevent dusting. Wash away remainder with plenty of water. Do NOT absorb in saw-dust or other combustible absorbents. Do NOT let this chemical enter the environment. Personal protection: complete protective clothing including self-contained breathing apparatus.
Separated from combustible and reducing substances. See Chemical Dangers. Keep in the dark. Well closed. Provision to contain effluent from fire extinguishing. Store in an area without drain or sewer access.

C symbol
N symbol
R: 34-50/53
S: 1/2-26-45-60-61
UN Hazard Class: 5.1
UN Packing Group: II
ICSC: 1116 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

SILVER NITRATE

ICSC: 1116

I

M

P

O

R

T

A

N

T


D

A

T

A

PHYSICAL STATE; APPEARANCE:
ODOURLESS , COLOURLESS OR WHITE CRYSTALS.

PHYSICAL DANGERS:


CHEMICAL DANGERS:
The substance decomposes on heating producing toxic fumes including nitrogen oxides . The substance is a strong oxidant and reacts violently with combustible and reducing materials. Reacts with incompatible substances such as acetylene, alkalies, halides and many other compounds causing fire and explosion hazard. Attacks some forms of plastics, rubber and coatings.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: (as Ag) 0.01 mg/m3 as TWA; (ACGIH 2008).
MAK: (Inhalable fraction) 0.01 mg/m3;
Peak limitation category: I(2); Pregnancy risk group: D;
(DFG 2008).


ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its aerosol and by ingestion.

INHALATION RISK:
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly on spraying or when dispersed, especially if powdered.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance is corrosive to the eyes, the skin and the respiratory tract. Corrosive on ingestion. The substance may cause effects on the blood , resulting in formation of methaemoglobin. The effects may be delayed. Medical observation is indicated.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
The substance may have effects on the blood , resulting in formation of methaemoglobin. Inhalation or ingestion can lead to generalized argyria, grey discolouration of the eyes and the skin and brown fingernails.

PHYSICAL
PROPERTIES

Decomposes below boiling point at 444°C
Melting point: 212°C
Solubility in water:
very good

ENVIRONMENTAL
DATA

The substance is very toxic to aquatic organisms.

N O T E S

Depending on the degree of exposure, periodic medical examination is suggested. Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available. Rinse contaminated clothes (fire hazard) with plenty of water. Card has been partly updated in October 2004. EU classification, Emergency Response.
Transport Emergency Card: TEC (R)-51GO2-I+II+III

NFPA Code: H1; F0; R0; OX
Card has been partially updated in February 2009: see Occupational Exposure Limits,

ADDITIONAL INFORMATION



ICSC: 1116 SILVER NITRATE
(C) IPCS, CEC, 1994
IMPORTANT LEGAL NOTICE: Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH, the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use. The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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