Barium cyanide

  • Barium dicyanide
Formula
Ba(CN)2
Structure
Description
A white crystalline solid.
Uses
In electroplating processes, in metallurgy.

Registry Numbers and Inventories.
CAS
542-62-1
EC (EINECS/ELINCS)
208-822-3
RTECS
CQ8785000
RTECS class
Other
UN (DOT)
1565
Merck
12,1000
Beilstein/Gmelin
116935 (G)
RCRA
P013
Swiss Giftliste 1
G-1210
Canada DSL/NDSL
NDSL
US TSCA
Listed
Austrailia AICS
Listed
Korea ECL
Listed

Properties.
Formula
C2BaN2
Formula mass
189.36
Solubility in water
Soluble
Heat of combustion
-1570 kJ/mol

Hazards and Protection.
Storage
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Protection
Wear appropriate protective gloves, clothing and goggles.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. Use water spray to knock-down vapors. Do not use water on material itself. Land spill: Dig a pit, pond, lagoon, holding area to contain liquid or solid material. Cover solids with a plastic sheet to prevent dissolving in rain or fire fighting water. Water spill: Add dilute caustic soda (NaOH). Add calcium hypochlorite (Ca(ClO)2). Add sodium sulfate (Na2SO4). Adjust pH to neutral (pH=7). Use mechanical dredges or lifts to remove immobilized masses of pollutants and precipitates.
Stability
Slowly decomposes in air.
Incompatibilities
Vontact with acids and acid salts causes immediate formation of toxic and flammable hydrogen cyanide gas.
Decomposition
When heated to decomposition it emits toxic fumes of cyanides. Toxic gases and vapors (such as hydrogen cyanide and carbon monoxide) may be released when cyanide decomposes.

Fire.
Fire fighting
Extinguish fire using agent suitable for type of surrounding fire. (Material itself does not burn or burns with difficulty.) Use foam, dry chemical, or carbon dioxide. Do not use water on material itself. If large quantities of combustibles are involved, use water in flooding quantities as spray and fog. Use water spray to knock-down vapors.
Fire potential
Not flammable
Hazards
Vapors may accumulate in confined areas (basement, tanks, hopper/tank cars, etc.). Substance will react with water (some violently), releasing corrosive and/or toxic gases. Reaction with water may generate much heat which will increase the concentration of fumes in the air. Contact with metals may evolve flammable hydrogen gas.
Combustion products
Toxic cyanides and barium oxides.

Health.
Exposure limit(s)
NIOSH REL*: TWA 0.5 mg/m3 OSHA PEL*: TWA 0.5 mg/m3 [*Note: REL and PEL also apply to other soluble barium compounds (as Ba) except Barium sulfate.] IDLH 50 mg/m3 (as Ba)
Poison_Class
1
Exposure effects
Initially, headache, vertigo, and agitation occur, followed by combative behavior, coma, seizures, and death.
   Ingestion
Nausea, vomiting, diarrhea, and abdominal pain may develop.
   Inhalation
Tachypnea, hyperpnea, and dyspnea followed rapidly by respiratory depression are common. Pulmonary edema may occur.
   Skin
Papules, rashes, pruritus, and ulcerations may occur.
   Eyes
Burning sensation of mouth and throat, and equally red retinal arteries and veins are common.

First aid
 
   Ingestion
Emergency measures - in symptomatic patients advance life support including use of the cyanide antidote kit should be initiated as gastrointestinal decontamination is being prepared. Ipecac induced vomiting is not recommended because of the potential for cns depression and seizures. Activated charcoal: administer charcoal as a slurry (240 ml water/30 g charcoal). Usual dose: 25 to 100 g in adults/adolescents. Consider after ingestion of a potentially life-threatening amount of poison if it can be performed soon after ingestion (generally within 1 hour). Oxygen - immediately begin therapy with 100% oxygen.
   Inhalation
Remove from exposure. Break amyl nitrate pearl in cloth and hold lightly under nose for 15 seconds. Repeat 5 times at 15-second intervals. Use artificial respiration if breathing stops.
   Skin
Wash with soap and water.
   Eyes
Wash eyes with copious quantities of water for a minimum of 20 minutes.

Transport.
UN number
1565
Response guide
Hazard class
6.1
Packing Group
I
 
USCG CHRIS Code
BCY
 
Std. Transport #
4923410