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SAFETY FIRST! What are some Do’s and Don’t in a Lab?

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Presentation on theme: "SAFETY FIRST! What are some Do’s and Don’t in a Lab?"— Presentation transcript:



3 What are some Do’s and Don’t in a Lab?

4 SAFETY EQUIPMENT IN THE CLASSROOM w Goggles - for eye protection w Eyewash station - for flushing of the eyes w Fire blanket - for smothering clothing fires w Safety shower - for clothing fires as well as extensive chemical spills on body. w Fire extinguisher - for fires NOT on a person


6 CHEMICAL SAFETY SHOWER w Used to flush copious amounts of chemicals off your body. w May have an eye wash station attached to it.

7 WHEN TO WEAR YOUR SAFETY GOGGLES Always wear safety goggle’s when you use: w chemicals w heating materials w glassware

8 Handling Accidents and Spills w React quickly and calmly to accidents. w Report accidents to your teacher. w Review MSDS sheets if needed w Clean up spills with proper supplies. w Clean up a solid spill or glassware with a broom and dustpan and dispose of it where indicated by your teacher.

9 APPROPRIATE CLOTHING Loose fitting clothing or jewelry can get damaged by equipment, chemicals, or heating devices.

10 ELECTRICAL HAZARDS The main concern when using electricity in laboratory situations is electrical shock. w The human body is a good conductor of electricity.

11 MECHANICAL HAZARDS w The main concern is that loose clothing or hair will be caught in the machinery and will cause bodily damage. w Objects that come into contact with a spinning component can cause sparks or can damage the equipment.


13 HAIR INSTRUCTIONS w Tie back long hair when using chemicals, heat, or equipment with gears or spinning parts. w Caution, hair preparations such as hairspray, gels, and mousse are often very flammable.


15 DELAWARE’S HAZARDOUS CHEMICAL INFORMATION ACT Is better known as You have the right to know what chemicals you are working with in a working environment. THE RIGHT TO KNOW LAW

16 MSDS w Identifies manufacturer w Gives chemical and physical properties w Indicates fire and explosion hazard w Identifies health hazard w Gives reactivity data w Indicates storage and handling procedures w Supplies first aid information w Details disposal and cleanup methods MSDS sheets online MSDS stands for = Material Safety Data sheet

17 Material Safety Data Sheets MSDS forms can be found here at Delcastle High School: Main Office Nurse’s Office Wellness Center Maintenance/Custodians Science classrooms Shops

18 TYPES OF CHEMICAL EXPOSURE w What does Exposure mean? w Two types of chemical exposure: w Acute w Chronic

19 ACUTE EXPOSURE Exposure to large amount of chemicals in a short period of time. ACUTE REACTIONS A reaction that happens right away or within minutes or hours. (Burns, rashes, nausea)

20 CHRONIC EXPOSURE w Exposure to small amounts of a chemical over long periods of time CHRONIC REACTIONS A reaction that occurs or builds up over a long period of time (smokers hack)

21 CHRONIC HEALTH EFFECTS wCwCancer wRwRespiratory problems wBwBirth defects wMwMutations

22 WHY DO WE NEED TO KNOW ABOUT CHEMICAL HAZARDS ? w To protect yourself w To protect others w To protect our environment Each year millions of Americans are exposed to chemicals. It is up to each of us to protect ourselves our environment and each other.

23 Signal Words w Caution w Warning w Danger These words are often followed by such words as: Combustible Flammable Explosive Oxidizer Reactive Corrosive Poison Irritant Carcinogen Toxic

24 COMMON WAYS CHEMICALS ENTER OUR BODIES Ingestion (digestion) Skin / Eye Contact Inhalation (inhale)

25 Types of hazards that can affect humans w Health hazards w Fire hazards w Reactivity hazards

26 Chemical Warning LABELS w Name of the chemical w Chemical formula w Hazard warning w Manufacturer w Hazard statement w Handling and storage w Notes to physician w Signal words w Precautions w Antidotes w Fire, spill and leak instructions RTK Worksheet

27 Chemical Warning Labels Chemical warning labels may have the following information listed: w Identity of the chemical

28 Chemical Warning Labels Chemical warning labels may have the following information listed: w Hazard Statement w Signal word w First Aid w Hazards for skin w Hazards for swallowing w Call poison control

29 Chemical Warning Labels Chemical warning labels may have the following information listed: w Instructions in case of exposure w Antidotes w Notes to physician w Handling and storage instructions w Manufacture

30 How dangerous can Toothpaste be?


32 NUMBER SYSTEM 4 -extremely dangerous 3 -very dangerous 2 -moderately dangerous 1 -irritating 0 -not known to be toxic D.O.T. classifications

33 Tolerance Limit Value (TLV) The amount of chemicals that a human being can be exposed to without side effects.

34 Warning Signs


36 Vocabulary to Know Oxidation – Toxic – Diluted – Reactivity – Exposed to oxygen Will react (change) when something is added to it. Deadly To weaken with water.

37 Vocabulary to Know w Carcinogen- w Combustible- w Concentrated- w Corrosive- w Cutaneous - Causes cancer Will catch on fire To strengthen without water. Will eat through Affecting the skin

38 Vocabulary to Know w EPA – w DOT – w Ignitable – w Ingestion – w Inhalation – w Lethal Dose – w Mutagen – Environmental Protection Agency Department Of Transportation Will catch on fire To eat To breath Dose of something that will kill you. Causes mutations

39 Extra Credit w Find the name of a chemical in your house. w Type in w Click on “Free MSDS” collection. w Type in the name of your chemical correctly in the search box. w Find your chemical and click on it! Maybe more than one!

40 *Extra Credit* w Read your MSDS chemical data sheet. w Print the MSDS sheet or e-mail a copy to me w @ w 1. Find three interesting facts on your MSDS. w 2. Tell me about any hazards? ( fire, health, reactivity) w 3. Any signal words on the container? w 4. Where did you find this chemical? w When is this due?...

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