Tuesday, October 20, 2020

What are Chemicals and Hazards Associated with These Substances


  • DGFVML: dust, gas, fumes, vapour, mist, liquid
  • Irritation, Itching, Burning, Breading a person, Fire, Explosion, Inhalation, Radiation
  • Two important hazards: Health hazards, fire & explosion hazards
  • Chemical hazards: any chemical that presents a physical hazard or a health hazard

Hazards associated with chemicals: (classification of hazardous substance)

  1. Irritant: Non-corrosive which through immediate prolonged or repeated contact with skin or mucus membrane may cause inflammation e.g. petrol
  2. Corrosive: Substance which can contact with living tissues may destroy by burning e.g. Acid
  3. Harmful: Substance which swallowed, inhaled or penetrates the skin may cause damage
  4. Boiling point: The pump at which a liquid boil at atmosphere pressure (100 f’)
  5. Combustible materials: A combustible material, a substance that catches fire & burns easily above 400 c’
  6. Flammable: material that will burn with ignited at or below room temperature
  7. Cryogenic Columns: liquid, solid, gases, & naphtha

Some chemical knowledge:

  • Hydrocracking is a catalyst chemical process used in petroleum refineries for converting (in the catalyst used Alumina Balls)
  • Amine used for H2S tripping
  • CCR, continuous catalyst regeneration (or Reformer)
  • Naphtha is lighter than gasoline
  • CHMC. Chemical hazards management chart
  • Chemical PPEs:  chemical splash face shield  
  • Handling corrosive materials, the best gloves are Rubber, Neoprene, and vinyl.
  • MSDS not older than 3 years

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