Cesium nitrate

  • Nitric acid, cesium salt
Formula
CsNO3
Structure
Description
Cesium nitrate is a colorless, glittering crystalline solid.
Uses
Used in the preparation of other Cs salts.

Registry Numbers and Inventories.
CAS
7789-18-6
EC (EINECS/ELINCS)
232-146-8
RTECS
FL0700000
RTECS class
Mutagen
UN (DOT)
1451
Merck
12,2057
Beilstein/Gmelin
23908 (G)
Swiss Giftliste 1
G-1368
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
CsNO3
Formula mass
194.91
Melting point, °C
414
Boiling point, °C
737
Density
3.68 g/cm3
Solubility in water
92 g/L
Dielectric constant
67.8 (10 C)
Thermal expansion
0.000396/L
Heat of fusion
12.1 kJ/mol

Hazards and Protection.
Storage
Keep away from heat, sparks, and flame. Do not store near combustible materials. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Handling
Wash thoroughly after handling. Use only in a well ventilated area. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Avoid contact with clothing and other combustible materials. Avoid ingestion and inhalation. Use only in a chemical fume hood.
Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate gloves to prevent skin exposure. Clothing: Wear a chemical apron. Wear appropriate clothing to prevent skin exposure.
Respirators
A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use.
Small spills/leaks
Clean up spills immediately, using the appropriate protective equipment. Avoid generating dusty conditions. Cover with sand, dry lime or soda ash and place in a closed container for disposal. Remove all sources of ignition.
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Reducing agents, aluminum powder + water + metal nitrate may explode, alkyl esters, phosphinates + heat, nitrites, nitrates, organics, cyanides (e.g. potassium cyanide, sodium cyanide), thiocyanates, isothiocyanates, hypophosphites, alcohols.
Decomposition
Nitrogen oxides.

Fire.
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Strong oxidizer. Contact with combustible materials may cause a fire. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use water with caution and in flooding amounts. Extinguishing media: Contact professional fire-fighters immediately. For large fires, flood fire area with large quantities of water, while knocking down vapors with water fog.
Fire potential
Strong oxidizer. Contact with combustible materials may cause a fire.
Hazards
These substances will accelerate burning when involved in a fire. Some may decompose explosively when heated or involved in a fire. May explode from heat or contamination. Some will react explosively with hydrocarbons (fuels). May ignite combustibles (wood, paper, oil, clothing, etc.). Containers may explode when heated. Runoff may create fire or explosion hazard.
Combustion products
During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion.
Health
2
 
Flammability
0
 
 
Reactivity
0
 
 
Special
O

Health.
Poison_Class
4
Exposure effects
   Ingestion
May cause irritation of the digestive tract. May cause burns to the gastrointestinal tract. May cause nausea, vomiting, and diarrhea, possibly with blood. May have blood effects.
   Inhalation
May cause respiratory tract irritation. May cause acute pulmonary edema, asphyxia, chemical pneumonitis, and upper airway obstruction caused by edema. May cause blood effects.
   Skin
May cause skin irritation. May cause severe irritation and possible burns.
   Eyes
May cause eye irritation. May cause conjunctivitis. May cause permanent corneal opacification.

First aid
 
   Ingestion
Never give anything by mouth to an unconscious person. Get medical aid immediately. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
   Inhalation
Get medical aid immediately. Remove from exposure to fresh air immediately. If breathing is difficult, give oxygen. Do not use mouth-to-mouth respiration if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device.
   Skin
Get medical aid immediately. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
   Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Transport.
UN number
1451
Response guide
Hazard class
5.1
Packing Group
III
 
Std. Transport #
4918785