The document discusses hazardous chemicals handling and provides definitions, categories, and guidelines for identification, handling, protective equipment, exposure routes, incompatible chemicals, regulations, emergencies, and first aid procedures for hazardous substances. It was presented by two chemists and outlines important information about hazardous chemicals including definitions, categories of hazards, identification symbols and colors, handling guidelines, personal protective equipment, exposure routes, incompatible chemicals, regulatory agencies, emergency response, and first aid procedures for eye, skin, inhalation, and ingestion exposures.

2. Hazardous Chemicals Handling
Presented by-
Md. Raihan Hossain (Sr. Chemist)
&
Suman Sarkar (Jr. Chemist)

3. Hazardous Substance: Definition
A 'hazardous substance' is any substance (biological,
chemical, radiological, and/or physical), that has the
potential to cause harm to humans, animals, or the
environment, either by itself or through interaction with
other factors.

4. Hazardous Substance: Categories
 Flammable – Octane
 Corrosive – Acid (HCl), Base(NaOH, NH3)
 Toxic - Hydrogen peroxide (>35%), Methyl Chloride
 Reactive – Organic peroxide, Perchloric acid
 Biological (infectious) – Oily/waste water
 Carcinogen (cancer-causing) - synthetic chemicals
 Radioactive-Americium(smoke detector), gamma ray
 Explosive – Urea nitrate, Ammonium chlorate,
Pressurized gas

5. Hazardous Chemicals

6. Hazardous chemical: Identification
 Read MSDS carefully
 Follow the labels
 Learn about the colors and symbols meaning

7. Hazardous chemical: Identification cont’d
Color Definition

8. Hazardous chemical: Identification cont’d
Symbols Definition (Pictograms)

9. Hazardous chemical: Identification cont’d
Symbols Definition (Pictograms) cont’d

10. Hazardous Chemicals: Handling
 Use proper safety equipment
 Take precautions and work carefully
 Always follow the procedures and MSDS
 Read all labels
 Keep yourself and the work area clean
 Plan ahead
General:

11. Hazardous Chemicals: Handling (cont’d)
• Keep containers closed when not in use
• Keep away from ignition sources
• Avoid contact with incompatible materials
• Only transfer to approved containers
 Flammable, Corrosive and Toxic Chemicals Handling

12. Hazardous Chemicals: Handling (cont’d)
• Bond all receiving containers
• Clean up spills and dispose of waste properly
• Use proper ventilations when used in closed area
• Store separately, away from processing and handling areas
 Flammable, Corrosive and Toxic Chemicals Handling
(cont’d)

13. Personal Protective Equipment (PPE)

14. Personal Protective Equipment (PPE) cotn’d
 No shorts or Sandals!
 Use hand gloves, goggles, apron and safety musk!

15. Routes of Exposure
 Inhalation – most common
 Absorption
 Ingestion
 Injection

16. Overexposure: Symptoms
 Eye discomfort
 Breathing difficulty
 Dizziness
 Headache
 Nausea
 Vomiting
 Skin irritation

17. Incompatible Chemicals
 Flammables and oxidizers
 Flammables and any ignition source
 Acids and cyanides
 Strong acids and strong alkalines
 Concentrated acids and water
 Organic solvents and corrosives
 Peroxide and oxidizing gases

18. Hazard Regulatory Agencies
 Occupational Safety and Health Administration (OSHA)
 National Fire Protection Association (NFPA)
 Environmental Protection Agency (EPA)
 Department of Transportation (DOT)

19. Emergencies
 Know emergency phone numbers
 Know how to control the spill
 Know proper equipment shutdown procedure
 Know proper evacuation routes and assembly areas
 Know initial steps to take if a certain incident occurs.

20. First Aid: Eyes Exposure
 Don’t rub the eyes
 Hold eyelids open and flush with water for 15 minutes
 Be careful not to contaminate the other eye
 Seek additional medical attention

21. First Aid: Skin Exposure
 Remove the chemical causing the burn
 Remove contaminated clothing and jewelry from
burn area
 Wash the affected area copiously with a gentle flow
of water for at least 15 min.
 Seek additional medical attention

22. First Aid: Chemical Inhalation
 Move the victim to fresh
air
 Get immediate medical
help

23. First Aid: Chemical Ingestion
 Induce vomiting only if told to do so by Poison Control
 Get immediate medical attention

24. If you have any question(s), then feel free to ask us