SAFETY FIRST!

FOLLOW ALL INSTRUCTIONS

Instructions may be verbal.

Instructions may be written.

Do not perform unauthorized experiments.

STUDY ALL INSTRUCTIONS

Read instructions carefully.

Know about hazards before you begin.

READING + KNOWING = SUCCESS

REPORT ALL ACCIDENTS

Report accidents to your teacher.

React to accidents quickly and calmly.

ACT IN A RESPONSIBLE MANNER AT ALL TIMES

The laboratory is a work place.

The laboratory is not a playroom.

Horseplay will not be tolerated.

KNOW YOUR SAFETY EQUIPMENT

Goggles - for eye protection

Eyewash station - for flushing of the eyes

Fire blanket - for smothering clothing fires

Safety shower - for clothing fires as well as extensive chemical spills on body.

Fire extinguisher - for fires NOT on a person

WEAR YOUR SAFETY GOGGLES

activities involving chemicals

activities involving heating of materials

activities involving glass materials!

STAY OUT OF RESTRICTED AREAS

Certain areas may present special hazards.

Enter restricted areas only with teacher permission.

KEEP YOUR WORK AREA CLEAR

Keep personal items not needed for an experiment away from the lab area.

Keep aisles free of all obstructions and book bags!

Place equipment and materials not needed for a lab activity in their proper storage area.

CLEAN UP ALL SPILLS

Tell your teacher what was spilled. Clean up minor spills with paper towels. Clean up a solid spill with a broom and

dustpan and dispose of it where indicated by your teacher.

BROKEN GLASSWARE

Clean up broken glassware with a broom and dustpan.

Dispose of broken glassware in the special box provided in the lab area.

Inform the teacher of the break and get a replacement.

WEAR APPROPRIATE CLOTHING

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

Clothing damage may lead to bodily injury. Wear aprons to protect clothing when

appropriate.

INSTRUCTIONS WHEN USING GAS OR

HOTPLATES

Do not play with gas valves.

Do not leave Bunsen burners or hotplates unattended.

Turn off Bunsen burners or hotplates when they are not being used.

SPECIAL ELECTRICAL HAZARDS

The biggest electrical hazard in laboratory situations is electrical shock.

The human body is a good conductor of electricity

REDUCE THE POSSIBILITY OF SHOCK

Turn power off to work on equipment. Turn power off when you are finished. Avoid letting metal objects come in contact

with exposed connections. Don’t stand on a wet floor when working

with electrical equipment. Keep your work area uncluttered.

SPECIAL MECHANICAL HAZARDS

Spinning components can cut skin or clothing.

Objects that come into contact with a spinning component can cause sparks or can damage the equipment.

OTHER MECHANICAL HAZARDS

Moving gears are able to pinch skin and snag clothing.

Weights can cause injury if dropped on a foot or hand. Use care when handling weights particularly in a pulley experiment.

SPECIAL HAIR INSTRUCTIONS

Tie back long hair when using chemicals, heat, or equipment with gears or spinning parts.

Hair preparations such as hairspray, gels, and mousse are often very flammable. Their use in a lab situation is discouraged.

NO EATING OR DRINKING IS ALLOWED IN THE

LABORATORY.

PROPER USE OF CHEMICALS AND

EQUIPMENT

Use equipment in the manner indicated by your teacher.

Read the labels on chemicals very carefully. Equipment and chemicals are NOT to be

removed from the laboratory without teacher permission

THE RIGHT TO KNOW LAW

Purpose of the law:

It’s your right to know what kind of chemicals

you are working with in a lab!!!

DELAWARE’S HAZARDOUS CHEMICAL INFORMATION ACT

Is better known as the

A Hazard Communication is:

A written document detailing the hazards of using a particular chemical

A sign warning of the potential dangers of a particular chemical in the vicinity

The label on a container instructing one on the use of that particular chemical

Any Communication warning one of a hazard

THE RIGHT TO KNOW LAW REQUIRES THAT YOU BE

INFORMED OF

IMMEDIATE DANGERS WHEN USING A CHEMICAL (Acute)

POSSIBLE LONG TERM HEALTH EFFECTS OF USING A CHEMICAL(Chronic)

ACUTE EXPOSURE• Exposure to a lot of chemical

substance in a short period of time.

ACUTE REACTION• A reaction that happens right away or within minutes or hours. (Burns, rashes, nausea)

IMMEDIATE (Acute) DANGERS WHEN USING A

CHEMICAL

Fires Explosions Irritations to the eyes or skin Burns to the skin Poisoning

CHRONIC EXPOSURE Exposure to small amounts of a chemical

over long periods of time

CHRONIC REACTION• A reaction that occurs or builds up over a long period of time (smokers hack)

POSSIBLE LONG TERM (chronic) HEALTH EFFECTS OF SOME

CHEMICALS

Cancer Respiratory problems Birth defects Mutations Other illnesses

COMMON ROUTES OF EXPOSURE

• Ingestion (eat it)

• Skin / Eye Contact or “ocular” (touch it)

• Inhalation (breath it)

HOW DO WE KNOW WHAT IS HAZARDOUS?

Label contents

(Look for one of three“signal words” Caution, Warning or Danger)

Color coding on the containers Number system on the containers MSDS - Material Safety Data Sheets

Key Words Caution Warning Danger

These words are often followed by such words as:

•Combustible•Flammable •Explosive•Oxidizer•Reactive

•Corrosive•Poison•Irritant•Carcinogen•Toxic

LABEL CONTENTS

Name of the chemical Chemical formula Hazard warning (3 signal words)

• Caution, Warning or Danger

Manufacturer name for further safety information if needed

Chemical warning labels may have the following information listed:

Name of the chemical

Signal word

Hazard Statement

Precautions

Fire, Spill and leak instructions

Chemical warning labels may have the following information listed:

Instructions in case of exposure

Antidotes

Notes to physician

Handling and storage instructions

COLOR CODING ON CONTAINERS

RED - FLAMMABLE

YELLOW - REACTIVE

BLUE - TOXIC OR POISONOUS

WHITE - CORROSIVE OR CAUSTIC

GREEN - RELATIVELY NONHAZARDOUS

NUMBER SYSTEM INDICATES THAT A

CHEMICAL IS

4 - extremely toxic

3 - very toxic

2 - moderately toxic

1 - irritating,

0 - not known to be toxic

MSDS

Identifies manufacturer Gives physical properties Indicates fire and explosion hazard Identifies health hazard Gives reactivity data Indicates storage and handling procedures

Threshold / Tolerance Limit Value (TLV)Permissible exposure Limit (PEL)

The amount of exposure that a human being can be exposed to a particular hazardous substance without adverse affects

TWA or LD 50

Parts per million (ppm)The amount of any substancedispersed into another.

If you were to drop a 10 grams of Kool-Aid powder into a million gramsof water you would have a solution containing 10 parts of Kool-Aid to 1 million parts of water or simply just 10 ppm of Kool-Aid to water.

Vocabulary to Know Acute Asphyxiant “C” or ceiling Carcinogen Chronic Combustible Concentration Corrosive Cutaneous Dermal

• Dilute • EPA• DOT• Flash point• Ignitable• Ingestion• Inhalation• Irritant• LD50• Lethal concentration• Lethal Dose

• Mutagen • Narcosis• Oxidation• Reactivity • Sensitizer• Solvent• Solute• Teratogen• Toxicity• Toxic• PEL• TLV

Extra Credit Find the name of a chemical in your house. Type in FlinnSci.com Click on “safety” icon. Click on “The Flinn Material Safety Data Sheet

(MSDS) Collection”. Type in the name of your chemical correctly. Find your chemical and click on it! Maybe more

than one! Read the MSDS info. Copy the MSDS sheet and e-mail it to me @

dhailey@nccvt.k12.de.us Bring a copy of it to class so that we can

discuss it!