SAFETY FIRST!

Mrs. CannatelliC222

FOLLOW ALL INSTRUCTIONS

Instructions may be verbal or written. Read instructions carefully.

Do not perform unauthorized experiments.

Know about hazards before you begin. READING + KNOWING = SUCCESS

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

for laboratory activities involving:

chemicalsheating of materials

glassware

STAY OUT OF RESTRICTED AREAS

Certain areas may present special hazards

ex. the chemical room in the front.

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 (book bags etc.).

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. React quickly and quietly 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.

INSTRUCTIONS WHEN USING 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.

ELECTRICAL HAZARDS

The main concern when using electricity in laboratory situations is electrical shock.

The human body is a good conductor of electricity

MECHANICAL HAZARDS Spinning components can cut skin or

clothing. The main concern is that loose clothing

or hair will be caught in the machinery. Objects that come into contact with a

spinning component can cause sparks or can damage the equipment.

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.

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

DELAWARE’S HAZARDOUS CHEMICAL INFORMATION

ACT

Is better known as

THE RIGHT TO KNOW LAW

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:

THE IMMEDIATE DANGERS WHEN USING A CHEMICAL (ACUTE)

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

ACUTE EXPOSUREExposure to a lot of chemical substance in a

short period of time. A reaction that happens right away or within minutes or hours. (burns, rashes, nausea)

CHRONIC REACTION

• Exposure to a small amount of chemical substance over a long period of time. •A reaction may take years to develop. (smokers hack)

POSSIBLE LONG TERM (Chronic)

HEALTH EFFECTS OF SOME CHEMICALS

Cancer Respiratory problems Birth defects Mutations Tumors

CONCENTRATIONS DILUTED~ to make (a liquid) thinner or

weaker by the addition of water or the like.

CONCENTRATED~ to intensify; make denser, stronger, or purer, esp. by the removal or reduction of liquid

IMMEDIATE DANGERS WHEN USING A CHEMICAL

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

WHY DO WE NEED TO KNOW ABOUT CHEMICAL HAZARDS ???? To protect oneself To protect our environment To protect others

Each year millions of Americans are exposed to chemicals. It is up to each of us to protect ourselves, our environment, and each other.

Key Words Caution Warning Danger

These words are often followed by such words as:

•Combustible•Flammable •Explosive•Oxidizer•Reactive

•Corrosive•Poison•Irritant•Carcinogen (causesCancer)•Toxic

COMMON ROUTES OF EXPOSURE

• Ingestion• Skin / Eye Contact• Inhalation

Materials present hazards in three ways

Health Fire Reactivity

HOW DO WE KNOW WHAT IS HAZARDOUS?

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

LABEL CONTENTS

Name of the chemical Chemical formula Hazard warning Manufacturer name for further safety

information if needed

Chemical Warning Labels

Chemical warning labels may have the following information listed:

Instructions in case of exposure

Antidotes Notes to physician Handling and

storage instructions

Chemical Warning Labels

Chemical warning labels may have the following information listed:

Identity of chemical Signal word Hazard Statement Precautions

Fire, Spill and leak instructions

COLOR CODING ON CONTAINERS

RED - FLAMMABLE

YELLOW - REACTIVE

BLUE - TOXIC OR POISONOUS

WHITE - CORROSIVE OR CAUSTIC

GREEN - RELATIVELY NONHAZARDOUS

NUMBER SYSTEM4 - extremely toxic, flammable, or reactive3 - very toxic, flammable, or reactive2 - moderately toxic, flammable, or

reactive1 - irritating, flammable if preheated, or

reactive if preheated0 - not known to be toxic, flammable, or

reactive

D.O.T. classifications

MSDS

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

procedures Supplies first aid information Details disposal and cleanup methods

MSDS sheets online

Material Safety Data sheet

Tolerance Limit Value (TLV)or Permissible exposure Limit (PEL)

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

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.

Where do you find MSDS in school? Nurses office Main office Janitors closets Labs Wellness center

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

• EPA• DOT• Flash point• Ignitable• Ingestion• Inhalation• Irritant• Lethal concentration• Lethal Dose• Mutagen• Narcosis•

•Oxidation•Reactivity •Sensitizer• Teratogen• Toxicity• Toxic• PEL• TLV