Barium nitrate

Barium nitrate Chemical Properties
Melting point 592 °C (dec.)(lit.)
density 3.23
storage temp. Store at +5°C to +30°C.
solubility 94g/l
form Solid
Specific Gravity3.24
color White
PH5.0-8.0 (50g/l, H2O, 25℃)
Odorodorless
Water Solubility 9 g/100 mL (20 ºC)
Sensitive Hygroscopic
Merck 14,983
Solubility Product Constant (Ksp)pKsp: 2.33
Exposure limitsACGIH: TWA 0.5 mg/m3
NIOSH: IDLH 50 mg/m3; TWA 0.5 mg/m3
Stability:Stable. Strong oxidizer - contact with combustible material may lead to fire. Incompatible with combustible material, reducing agents, acids, acid anhydrides. Moisture sensitive.
InChIKeyIWOUKMZUPDVPGQ-UHFFFAOYSA-N
CAS DataBase Reference10022-31-8(CAS DataBase Reference)
EPA Substance Registry SystemBarium nitrate (10022-31-8)
Safety Information
Hazard Codes O,Xn,Xi,C
Risk Statements 8-20/22-36/38-34-26-25
Safety Statements 28-28A-17-26-45-36/37/39-36-23
RIDADR UN 1446 5.1/PG 2
WGK Germany 1
RTECS CQ9625000
TSCA Yes
HazardClass 5.1
PackingGroup II
HS Code 28342990
Hazardous Substances Data10022-31-8(Hazardous Substances Data)
ToxicityLD50 i.v. in ICR mice: 20.10 mg Ba2+/kg (Syed, Hosain)
MSDS Information
ProviderLanguage
ACROS English
SigmaAldrich English
ALFA English
Barium nitrate Usage And Synthesis
DescriptionBarium nitrate is a stable, strong oxidiser. It is incompatible with combustible material, reducing agents, acids, acid anhydrides, and moisture-sensitive substance. Barium nitrate is poisonous, is a respiratory irritant, and is hazardous if mixed with flammable materials. Barium oxide plus zinc, aluminium and magnesium alloys are combustibles (paper, oil, wood), acids, and oxidisers and is hazardous. Mixtures with finely divided aluminium–magnesium alloys are easily ignitable and extremely sensitive to friction or impact. Barium nitrate mixed with aluminium powder, a formula for flash powder, is highly explosive. However, barium nitrate is noncorrosive in presence of glass. It is used in military thermite grenades, in the manufacturing process of barium oxide, in the vacuum tube industry, and in pyrotechnics for green flame.
Barium nitrate
Chemical PropertiesBarium nitrate is a shiny, white crystalline solid. It forms white crystals that are soluble in water at 20℃. It is formed by the reaction of barium carbonate or barium hydroxide with nitric acid. It is hazardous as magnesium plus barium oxide plus zinc, aluminum and magnesium alloys, combustibles (paper, oil, wood), acids, and oxidizers. Mixtures with nely divided aluminum-magnesium alloys are easily ignitable and extremely sensitive to friction or impact. Barium nitrate on contact with combustible materials will ignite. Barium nitrate mixed with aluminum powder, a formula for l ash powder is highly explosive.
Physical propertiesBarium nitrate has the molecular formula of Ba(NO3)2 and the molecular weight of 261.3745 g/mol. It is also known as “nitrobarite”. Its CAS number is 10022-31-8. It is soluble in water.
It can be prepared by a number of methods. The reaction between nitric acid and barium metal is one way and reaction with BaO or BaCO3 is another. Barium hydroxide and ammonium nitrate also form the product but ammonia is released as a by-product:
2HNO3 + Ba ---> Ba(NO3)2 +H2
2HNO3 + BaO ---> Ba(NO3)2 +H2O
Ba(OH)2 + 2NH4NO3 ---> Ba(NO3)2 + 2NH3 + 2H2O
Barium nitrate can also be prepared by the reaction of barium carbonate or barium carbonate with nitric acid:
BaCO3 + 2HNO3 ---> Ba(NO3)2 + CO2 +H2O
UsesBarium nitrate is used in industry in the production of green signal lights, to remove gases from vacuum tubes, and in the production of barium oxide.
UsesBarium nitrate [Ba(NO3)2] burns with a bright green flame and is used in signal flares and pyrotechnics. It can be produced by treating barium carbonate with nitric acid.
Usesmanufacture of BaO2; pyrotechnics for green fire; green signal lights; in the vacuum-tube industry.
PreparationBarium Nitrate can be prepared by a number of methods. The reaction between nitric acid and barium metal is one way and reaction with BaO or BaCO3 is another. Barium hydroxide and ammonium nitrate also form the product but ammonia is released as a by-product:
2HNO3+ Ba→Ba(NO3)2+H2
2HNO3+ BaO→Ba(NO3)2+H2O
Ba(OH)2+ 2NH4NO3→Ba(NO3)2+ 2NH3+ 2H2O
Barium nitrate can also be prepared by the reaction of barium carbonate or barium carbonate with nitric acid:
BaCO3+ 2HNO3→Ba(NO3)2+ CO2+H2O
In this method, barium carbonate is suspended in nitric acid. The solution is filtered and the product crystallizes out. Alternatively, barium carbonate and nitric acid are added to a saturated solution of barium nitrate. The product is then obtained by crystallization. Barium nitrate may also be prepared by adding sodium nitrate to a saturated solution of barium chloride. Barium nitrate precipitates out from the solution. The precipitate is filtered, washed with alcohol and dried.
DefinitionChEBI: Barium nitrate is an inorganic nitrate salt of barium. It is an inorganic barium salt and an inorganic nitrate salt.
General DescriptionA white crystalline solid. Noncombustible, but accelerates burning of combustible materials. If large quantities are involved in fire or the combustible material is finely divided, an explosion may result. May explode under prolonged exposure to heat or fire. Toxic oxides of nitrogen produced in fires.
Air & Water ReactionsSoluble in water.
Reactivity ProfileMixtures of metal nitrates with alkyl esters may explode, owing to the formation of alkyl nitrates. Mixtures of nitrates with phosphorus, tin(II) chloride, or other reducing agents may react explosively [Bretherick 1979 p. 108-109].
HazardStrong oxidizing agent. See barium.
Health HazardExposures to barium nitrate by ingestion or inhalation cause poisoning. The symptoms include, but are not limited to, ringing of the ears, dizziness, irregular and elevated blood pressure, blurred vision, irritation to the respiratory system, tightness of muscles (especially in the face and neck), vomiting, diarrhea, abdominal pain, muscular tremors, anxiety, weak- ness, labored breathing, cardiac irregularity, and convulsions. Poisoned workers also suffer from kidney damage, cardiac or respiratory failure, tremors, convulsions, coma, and possi- bly death. Prolonged periods of exposure to barium nitrate is known to cause damage of the liver (anemia and possibly methemoglobinemia), spleen, kidney, bone marrow, and the CNS.
Flammability and ExplosibilityNonflammable
Safety ProfileA poison by ingestion, subcutaneous, parenteral, and intravenous routes. An irritant to slun and eyes. When heated to decomposition it emits very toxic fumes of NO,. An oxiduer. Mixtures with finely divided aluminum-magnesium alloys are easily ignitable and extremely sensitive to friction or impact. Such mixtures are used in chemical photoflash applications. Incompatible with (Mg + BaO2 + Zn), Al, and Mg alloys. When heated to decomposition it emits toxic fumes of NO,. See also BARIUM COMPOUNDS (soluble) and NITRATES.
Potential ExposureBarium nitrate is used in making fireworks (in green fire pyrotechnics), signal lights, ceramics; and in the electronics industry; to make BaO2. Once used in the vacuum tube industry.
storageBarium nitrate should be kept stored in a tightly closed container, in a cool, dry, venti- lated area, protected against physical damage. It should be separated from heat, sources of ignition, incompatible substances, combustibles, and organic or other readily oxidizable materials. Barium nitrate should not be stored on wood l oors or with food and beverages
ShippingUN1446 Barium nitrate, Hazard Class: 5.1; Labels: 5.1—Oxidizer, 6.1—Poisonous materials.
Purification MethodsCrystallise it twice from water (4mL/g) and dry it overnight at 110o. It decomposes at higher temperatures to give mostly the oxide and the peroxide with only a little of the nitrite. POISONOUS. [Ehrlich in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol I p 941 1963.]
IncompatibilitiesA strong oxidizer. Decomposes in heat; may detonate if confined in elevating temperatures. Keep away from strong acids; reducing agents. Contact with organic and combustible materials (such as wood, paper, oil and fuels); and aluminum magnesium alloys, since violent reactions occur. Contact with sulfur powder and finely divided metals can form shock-sensitive compounds.
Waste DisposalDissolve waste in 6-MHCl. Neutralize with NH4OH. Precipitate with excess sodium carbonate. Filter, wash and dry precipitate and return to supplier.
PrecautionsAfter accidental exposures to barium nitrate by ingestion, swallow, or inhalation, workers should induce vomiting immediately as directed by medical personnel. Never give any- thing by mouth to an unconscious person. Get medical attention immediately
Barium nitrate Preparation Products And Raw materials
Raw materialsNitric acid-->Barium sulfate-->Ammonium nitrate-->Barium carbonate-->Barium chloride-->BARIUM SULFIDE
Preparation ProductsNickel(II) nitrate hexahydrate-->BARIUM NITRITE-->Barium peroxide-->Barium
CHROMIUM (III) NITRATE HYDROXYLAMINE NITRATE AMMONIUM NITRITE, 20% SOLN Pralmorelin Barium nitrate Miconazole Nitrate Econazole nitrate Barium chloride dihydrate ETHYLENEDIAMINE TETRAKIS(PROPOXYLATE-BLOCK-ETHOXYLATE) TETROL Diphenolic acid 4-(Diethylamino)salicylaldehyde Ammonium nitrate Calcium nitrate Barium nitrate, 99.999% PURATREM DL-α-Tocopherol 5-Chlorovaleric acid Sodium nitrate NITRATE

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