Properties of commonly used fireworks materials 6, silver nitrate

Six, the properties of silver nitrate English name silver nitrate; molecular formula for AgNO3, molecular weight of 169.87.

1. Physicochemical properties. Appearance and properties: colourless transparent rhombohedral crystals or white crystals with bitter taste; Melting point: 212°C; Boiling point: 440°C (decomposition); Relative density (water=1):4.35; Solubility: readily soluble in water, alkali, etc., slightly soluble in ether.
2. Health Hazards. Accidental intake of silver nitrate can cause severe abdominal pain, vomiting, bloody stools, and even gastrointestinal perforation. It can cause skin and eye burns. Workers exposed to this product for a long period of time can develop systemic silversmithing. Manifestations include: widespread pigmentation of the skin all over the body with a grey-blue-black or light slate colour; silver deposits in the eyes, resulting in eye damage; silver deposits in the respiratory tract, resulting in chronic bronchitis.
3. Hazardous properties. Inorganic oxidising agent, when meeting combustible material on fire, it can fuel the fire. Decomposed by high heat, producing toxic nitrogen oxides.
4. Emergency Response to Leakage. Isolate the leaking contaminated area and restrict access. It is recommended that emergency personnel wear dust masks (full face masks) and anti-virus clothing. Do not come into direct contact with the spill. Do not allow spill to come into contact with reducing agents, organics, flammables or metal powders. Small spills: Collect with a clean shovel in a dry, clean, covered container or flush with plenty of water, dilute with wash water and place in the wastewater system. LARGE SPILL: Collect for recycling or transport to waste disposal site for disposal.
5. Fire extinguishing methods. Use water, mist water, sand, etc. to extinguish fires.