1 / 19

Hazards by class

Hazards by class. B ases. Precautions: Wear gloves Protect metals (cover with plastic ) Wipe off seal after each use before closing. Corrosive. DDC 01xx. White Label. Examples: 1 2 3 4. A cids. Precautions: Separate organic and inorganic Wear gloves

gwylan
Download Presentation

Hazards by class

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Hazards by class

  2. Bases Precautions: • Wear gloves • Protect metals (cover with plastic) • Wipe off seal after each use before closing Corrosive DDC 01xx White Label Examples: • 1 • 2 • 3 • 4

  3. Acids Precautions: • Separate organic and inorganic • Wear gloves • Protect metals (cover with plastic) • Wipe off seal after each use before • closing Corrosive DDC 02xx White Label Examples: (with cap color) • Acetic Acid—Brown • Phosphoric Acid—White • Hydrochloric Acid—Blue • Sulfuric Acid—Yellow • Nitric Acid—Red

  4. Oxidizers Precautions: • Keep away from combustible materials Oxidizing DDC 16xx Yellow Label Examples: • Sodium hypochlorite • Potassium permanganate • Peroxides • Perchlorates • Nitrates

  5. Flammables Precautions: • Keep away from oxidizers and ignition sources Flammable DDC 08xx Red Label Examples: • Many solvents • Acetone, ether, methanol, benzene • Phosphorus • Magnesium

  6. Reactive Precautions: • Keep well sealed • Protect against moisture and vibration • Isolate from atmosphere by storing under inert gas (Nitrogen) or liquid (oil) Reacts with Air Water Shock DDC 04xx, 12xx Yellow Label Examples: Water reactive: • Na/K/Li metal • Metal hydrides Shock reactive: • Organic peroxides • Heavy metal azides

  7. Inhalation Hazard Precautions: • Keep well sealed Toxic if inhaled DDC ##PH Blue Label Examples: • Methyl iodide • Methylamine • Thionyl chloride • Silica • Ammonia

  8. Toxic Precautions: • Do not swallow, touch, or inhale • Wash hands after handling Toxic if swallowed DDC 18xx Blue Label Examples: • Cyanides • Azides • Sulfides • DMSO • Chloroform

  9. Low Hazard DDC 05xx, 06xx Precautions: • Keep liquids below eye level Irritant Grey Label Orange Label Green Label Examples: • Halogen salts • Buffers • Chemicals with low reactivity (lots of examples)

  10. Radioactive Precautions: • Authorized users only! • Leave shielding in place • What about the testing / monitoring badges/ rings? DDC ##RA Examples: • 3H • 14C • 32P • 125I • 35S

  11. Biohazard Precautions: • Materials must be inactivated before disposal May also be: Toxic Harmful to environment Examples: • E. coli • S. cerevisiae • Salmonella • Viruses

  12. Mercury or Heavy Metal Precautions: • Materials must be disposed as hazardous waste Toxic Harmful to environment Examples: • Mercury • Cadmuim • Lead

  13. Carcinogen Precautions: • Do not swallow, touch or inhale • Use appropriate gloves Cancer causing Toxic Examples: • Arsenic • Beryllium • Benzene • Formaldehyde • Vinyl Chloride

  14. Reproductive Toxin Precautions: • Do not swallow, touch or inhale • Use appropriate gloves Toxic Examples: • Selenium/ Tellurium • Methylene chloride • Chloroform • Arsenic • Xylene

  15. Nanoparticle Precautions: • Do not swallow, touch or inhale • Use appropriate gloves • Keep well sealed Examples: • Au (gold) • Ag (silver) • Mesoporous silica • Iron oxide

  16. Time Sensitive Materials DDC ##PF Precautions: • Avoid metal caps, heat, light • Visually check for crystals • Test every 1, 3, 6 or 12 months • Dispose if > 80 ppm peroxides or > 2 yrs Peroxide formers Examples: • Diethyl Ether • Tetrahydrofuran (THF) • Dioxane

  17. Sensitive Materials Temperature sensitive store at proper temperature Light sensitive store in the dark Precautions: • Store in secondary containers to segregate hazards

  18. Sensitive to Humidity Some chemicals need to be kept • Dry • Store in dessicant to remove humidity. • Protect from moisture. • Moist • Store in overpack with wet towel. • Do NOT allow to dehydrate

  19. Pressure Difference Compressed Gas Pressurized materials Vacuum Risk of Projectiles DDC ##CG Precautions: Do not heat, cool, or attempt to open while under pressure Protect from impact • Use plastic netting to control glass shards if implosion • Apply grease to seal • Secure upright • Transport in a secure cart

More Related