Barium nitrate is an inorganic compound with the chemical formula Ba (NOthree)two, molecular weight 261.337, density 3.24g/cmthree, soluble in water, concentrated sulfuric acid, insoluble in ethanol and concentrated nitric acid.Barium nitrate is a white crystalline powder with slight hygroscopicity and strong oxidation.Green flame appears when burning.It is used as oxidant, analytical reagent, barium salt, signal flare, fireworks, ceramics, etc.
Listed in the List of Explosive Hazardous Chemicals[2]And controlled in accordance with the Measures for Public Security Management of Explosive Hazardous Chemicals[1]。
It can be used to manufacture barium oxide, barium peroxide, optical glass, ceramics and glaze medicine, etc. It can also be used as explosives, combustion supporting materials, green fireworks, flares, photobombs, anti-corrosion, chemical reagents, medicine, metal heat treatment, etc.
First aid measures
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Skin contact: Take off the contaminated clothes and wash the skin thoroughly with soapy water and clean water.
Eye contact: lift the eyelid, wash with flowing water or physiological saline, and seek medical advice.
Inhalation: quickly leave the site to a place with fresh air to keep the respiratory tract unobstructed.If breathing is difficult, give oxygen.If breathing stops, perform artificial respiration immediately and seek medical advice.
Ingestion: drink enough warm water, induce vomiting, wash stomach with 2%~5% sodium sulfate solution, conduct diarrhea, and seek medical advice.
Fire fighting measures
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Hazardous characteristics: strong oxidant.In case of combustible fire, it can promote the fire.It can form explosive mixture when mixed with reducing agent, organic matter, flammable substances such as sulfur, phosphorus or metal powder.During combustion and decomposition, toxic nitrogen oxide gas is released.
Hazardous combustion products: nitrogen oxides.
Extinguishing method: firefighters must wear gas masks and full body fire-fighting clothes to extinguish the fire in the upwind direction.Misty water and sand.Do not spray water directly onto molten materials to avoid serious flowing fire or severe boiling splash.
Leakage treatment
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Isolate the leakage contaminated area and restrict access.It is recommended that emergency personnel wear dust masks (full face masks) and gas suits.Do not touch the leakage directly.Do not allow the leakage to contact with organics, reducing agents and inflammables.
Small amount of leakage: sweep it carefully, put it in a bag and transfer it to a safe place.
Large amount of leakage: collect and recycle or transport to waste disposal site for disposal.
Protective measures
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Respiratory protection: It is recommended to wear a self-priming filter type dust mask when it may be exposed to dust.
Eye protection: wear safety glasses.
Body protection: wear polyethylene gas protective clothing.
Hand protection: wear neoprene gloves.
Other protection: smoking, eating and drinking are prohibited at the work site.After work, take a shower and change clothes.Keep good hygiene habits.
Operation, disposal, storage and transportation
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Precautions for operation: close operation and strengthen ventilation.Operators must be specially trained and strictly abide by the operating procedures.It is recommended that operators wear self-priming filter type dust masks, safety goggles, polyethylene gas suits and neoprene gloves.Keep away from kindling and heat sources, and smoking is strictly prohibited in the workplace.Keep away from flammable and combustible materials.Avoid dust generation.Avoid contact with reducing agents, acids and bases.Load and unload gently during transportation to prevent damage to packaging and containers.Fire fighting equipment and leakage emergency treatment equipment of corresponding types and quantities shall be provided.Empty containers may leave harmful substances.
Precautions for storage: store in a cool and ventilated warehouse.Keep away from kindling and heat sources.It shall be stored separately from combustibles, reducing agents, acids, alkalis, and edible chemicals, and mixed storage is strictly prohibited.The storage area shall be equipped with appropriate materials to contain leakage.The "five pairs" management system for extremely toxic substances shall be strictly implemented.
Packaging method: plastic bag or two-layer kraft paper bag with full opening or middle opening steel drum (steel plate is 0.5mm thick, and the net weight of each drum is not more than 50kg), and then put less than carload into a full cage wooden box;Ordinary wooden case outside plastic bag or two-layer kraft paper bag;Screw mouth glass bottle, iron cap pressure mouth glass bottle, plastic bottle or ordinary wooden case outside metal bucket (can).
Precautions for transportation: during railway transportation, the dangerous goods shall be loaded in strict accordance with the dangerous goods loading table in the Dangerous Goods Transportation Rules of the Ministry of Railways.It shall be transported separately, and the container shall not leak, collapse, fall or be damaged during transportation.The transport vehicles shall be equipped with corresponding types and quantities of fire-fighting equipment.It is strictly prohibited to transport together with acids, inflammables, organics, reducing agents, spontaneous combustion materials, inflammables in wet conditions, etc.During transportation, the speed should not be too fast, and forced overtaking is not allowed.Transport vehicles shall be thoroughly cleaned before and after loading and unloading. It is strictly prohibited to mix with organic substances, combustibles and other impurities.
security information
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Safety terminology
S17：Keep away from combustible material.
Keep away from combustible materials.
S23：Do not breathe gas/fumes/vapour/spray.
Do not breathe gas/smoke/vapor/spray.
S26：In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
After eye contact, immediately flush with plenty of water and seek medical advice.
S28：After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer).
After skin contact, immediately use a large amount of(designated by the manufacturer).
S36/37/39：Wear suitable protective clothing, gloves and eye/face protection.
Wear appropriate protective clothing, gloves and eye/face protection.
S45：In case of accident or if you feel unwell, seek medical advice immediately (show the lable where possible).
In case of an accident or feeling unwell, seek medical advice immediately (show the label if possible).
Risk terminology
R8：Contact with combustible material may cause fire.
Contact with combustible materials may cause fire.
