solvents.ppt
DESCRIPTION
procedure of solventTRANSCRIPT
SolventsSolvents
Some common solventsSome common solvents
Charcoal lighter fluid,Charcoal lighter fluid, Windshield washer fluid,Windshield washer fluid, Paint,Paint, Household cleaners, Household cleaners,
and evenand even Water!Water!
1a
Use of solventsUse of solvents
CleaningCleaning
DegreasingDegreasing
Removing paint, ink, Removing paint, ink, or other coatingsor other coatings
1b
Use of solventsUse of solvents
Producing adhesives, paints, inks, Producing adhesives, paints, inks, coatings, varnishes, coatings, varnishes, and other sealersand other sealers
Solvents we work Solvents we work withwith
1c
How to recognize solventsHow to recognize solvents
Usually liquidUsually liquid
Many are colorlessMany are colorless
Most have a strong odorMost have a strong odor
Some evaporate quicklySome evaporate quickly
2a
Always check the container’s labelAlways check the container’s label
How to recognize solventsHow to recognize solvents
2b
Chemistry of solventsChemistry of solvents
Solvents are used to dissolve Solvents are used to dissolve something elsesomething else
Like dissolves likeLike dissolves like
How electron are distributed is How electron are distributed is called called polaritypolarity
3a
Chemistry of solventsChemistry of solvents
Polar solvents:Polar solvents:• WaterWater• KetonesKetones• AlcoholsAlcohols
Non-polar solvents:Non-polar solvents:• OilsOils• Petroleum distillatesPetroleum distillates• Many chlorinated solventsMany chlorinated solvents
3b
Chemistry of solventsChemistry of solvents
Always use the solvent specified Always use the solvent specified for the jobfor the job
Why we use certain solventsWhy we use certain solvents
3c
Health hazardsHealth hazards
Routes of entry include:Routes of entry include:• Breathing the vapors,Breathing the vapors,• Direct contact, andDirect contact, and• Ingestion if you are eating or drinking Ingestion if you are eating or drinking
while using the solvents.while using the solvents.
4a
Health hazards: Acute Health hazards: Acute effectseffects
DizzinessDizziness NauseaNausea IrritationIrritation DrynessDryness ItchingItching DermatitisDermatitis
4b
Health hazards: Chronic Health hazards: Chronic effectseffects
Chronic diseases typically target:Chronic diseases typically target:• Skin,Skin,• Liver,Liver,• Kidneys,Kidneys,• Circulatory system,Circulatory system,• Reproductive system, andReproductive system, and• Nervous system.Nervous system.
4c
Health hazardsHealth hazards
Check the MSDSCheck the MSDS
Health hazards of Health hazards of the solvents the solvents we usewe use
4d
Physical hazardsPhysical hazards
CombustibleCombustible
FlammableFlammable
Check the MSDSCheck the MSDS
Physical hazards of the solvents we usePhysical hazards of the solvents we use
5
Engineering controls that Engineering controls that reduce exposuresreduce exposures
VentilationVentilation
Automated chemical transfer Automated chemical transfer equipmentequipment
Engineering controls we useEngineering controls we use
6
Personal protective Personal protective equipment (PPE)equipment (PPE)
See solvent’s MSDS for PPE See solvent’s MSDS for PPE recommendationsrecommendations
Employer selects appropriate PPEEmployer selects appropriate PPE
Types of PPE we useTypes of PPE we use
7
Safe work proceduresSafe work procedures
See solvent’s MSDS for safe See solvent’s MSDS for safe handling informationhandling information
Take appropriate fire prevention Take appropriate fire prevention precautionsprecautions
Use only the amount neededUse only the amount needed
8a
Safe work proceduresSafe work procedures
Dispense carefully to avoid spillsDispense carefully to avoid spills
Be cautious about skin contactBe cautious about skin contact
Follow all job-specific work Follow all job-specific work proceduresprocedures
8b
Safe storage proceduresSafe storage procedures
See solvent’s MSDS for safe See solvent’s MSDS for safe storage informationstorage information
Solvents may need to be stored Solvents may need to be stored separately from other materialsseparately from other materials
Storage areas should be well Storage areas should be well ventilatedventilated
9a
Safe storage proceduresSafe storage procedures
Rough handling can lead to Rough handling can lead to dangerous leaksdangerous leaks
Inspect containers for damage Inspect containers for damage prior to useprior to use
Report suspected damage, Report suspected damage, contamination, or leakscontamination, or leaks
9b
Proper clean-up and Proper clean-up and disposaldisposal
Emergency releases should be Emergency releases should be handled by a specially trained handled by a specially trained Hazmat teamHazmat team
Waste solvents need to be Waste solvents need to be collected in proper containerscollected in proper containers
10
First aid and emergency First aid and emergency proceduresprocedures
Refer to the MSDS for first aid and Refer to the MSDS for first aid and emergency informationemergency information
Always follow our company’s Always follow our company’s specific procedures specific procedures for emergency for emergency response and first aidresponse and first aid
11