Materials commonly used in fireworks: 23, Properties of stearic acid

XXIII. Properties of stearic acid

English name is octadecanoic acid; molecular formula is Cl ,H2O2, molecular weight is 284.48.This article comes from: https://fireworkslit.com/Fireworkslit-https://fireworkslit.com/materials-commonly-used-in-fireworks-23-properties-of-stearic-acid/

1. Physicochemical properties. Appearance and properties: pure product is white soft flakes with luster; Melting point: 70~71℃; Relative density (air=1):9.8; Boiling point: 383℃; Relative density (water=1):0.87; Saturated vapour pressure: 0.13kPa (173.7℃); Solubility: Carbon chloride and so on. Insoluble in water, slightly soluble in ethanol, soluble in acetone, benzene, etc., easily soluble in ether, chloroform, four
2. Health hazards. Widely used in industry no harm seen. Some individual data reported that it has an irritating effect on eyes, skin, mucous membranes and upper respiratory tract.
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3. Hazardous Characteristics. Flammable when exposed to open flame and high heat.
   

   stearic acid

4. Spill Emergency Response. Isolate leaking contaminated area and restrict access. Cut off the source of ignition, and recommend emergency personnel to wear dust masks (full face masks) and anti-gas suits. In case of small leakage, mix with sand, dry lime or soda ash, collect in dry, clean and covered container for disposal. In the middle, transfer to a safe place. If large quantity spills, collect for recycling or transport to waste disposal site
5. Fire Fighting Methods. Firefighters shall wear gas masks and full body fire suits to extinguish the fire upwind. Extinguishing agents: mist water, foam, dry powder, carbon dioxide, sand, etc.