SAFETY FIRST! ST HS: Mrs. Cannatelli C222

FOLLOW ALL INSTRUCTIONS w Instructions may be verbal or written. w Read instructions carefully. w Do not perform unauthorized experiments. w Know about hazards before you begin. w READING + KNOWING = SUCCESS

ACT IN A RESPONSIBLE MANNER AT ALL TIMES w The laboratory is a work place. w The laboratory is not a playroom. w Horseplay will not be tolerated.

KNOW YOUR SAFETY EQUIPMENT 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

WEAR YOUR SAFETY GOGGLES w for laboratory activities involving: chemicals heating of materials glassware

STAY OUT OF RESTRICTED AREAS w Certain areas may present special hazards ex. the chemical room in the front. w Enter restricted areas only with teacher permission.

KEEP YOUR WORK AREA CLEAR w Keep personal items not needed for an experiment away from the lab area. w Keep aisles free of all obstructions (book bags etc.). w Place equipment and materials not needed for a lab activity in their proper storage area.

CLEAN UP ALL SPILLS w Tell your teacher what was spilled. w React quickly and quietly w Clean up minor spills with paper towels. w Clean up a solid spill with a broom and dustpan and dispose of it where indicated by your teacher.

BROKEN GLASSWARE w Clean up broken glassware with a broom and dustpan. w Dispose of broken glassware in the special box provided in the lab area. w Inform the teacher of the break and get a replacement.

INSTRUCTIONS WHEN USING HOTPLATES wDwDo not play with gas valves. wDwDo not leave Bunsen burners or hotplates unattended. wTwTurn off Bunsen burners or hotplates when they are not being used.

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

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

HAIR INSTRUCTIONS w Tie back long hair when using chemicals, heat, or equipment with gears or spinning parts. w 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 w Use equipment in the manner indicated by your teacher. w Read the labels on chemicals very carefully. w 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: w A written document detailing the hazards of using a particular chemical w A sign warning of the potential dangers of a particular chemical in the vicinity w The label on a container instructing one on the use of that particular chemical w Any Communication warning one of a hazard

THE RIGHT TO KNOW LAW REQUIRES THAT YOU BE INFORMED OF: w THE IMMEDIATE DANGERS WHEN USING A CHEMICAL (ACUTE) w 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. 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 wCwCancer wRwRespiratory problems wBwBirth defects wMwMutations wTwTumors

CONCENTRATIONS w DILUTED~ to make (a liquid) thinner or weaker by the addition of water or the like. w CONCENTRATED~ to intensify; make denser, stronger, or purer, esp. by the removal or reduction of liquid

IMMEDIATE DANGERS WHEN USING A CHEMICAL wFwFires wEwExplosions wIwIrritations to the eyes or skin wBwBurns to the skin wPwPoisoning

WHY DO WE NEED TO KNOW ABOUT CHEMICAL HAZARDS ???? w To protect oneself w To protect our environment w 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 w Caution w Warning w Danger These words are often followed by such words as: Combustible Flammable Explosive Oxidizer Reactive Corrosive Poison Irritant Carcinogen (causes Cancer) Toxic

COMMON ROUTES OF EXPOSURE Ingestion Skin / Eye Contact Inhalation

Materials present hazards in three ways w Health w Fire w Reactivity

HOW DO WE KNOW WHAT IS HAZARDOUS? wLwLabel contents wCwColor coding on the containers wNwNumber system on the containers wMwMSDS - Material Safety Data Sheets

LABEL CONTENTS w Name of the chemical w Chemical formula w Hazard warning w Manufacturer name for further safety information if needed

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

Chemical Warning Labels Chemical warning labels may have the following information listed: w Identity of chemical w Signal word w Hazard Statement w Precautions w 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 SYSTEM 4 -extremely toxic, flammable, or reactive 3 -very toxic, flammable, or reactive 2 -moderately toxic, flammable, or reactive 1 -irritating, flammable if preheated, or reactive if preheated 0 -not known to be toxic, flammable, or reactive D.O.T. classifications

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 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 substance dispersed into another. If you were to drop a 10 grams of Kool-Aid powder into a million grams of 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? w Nurses office w Main office w Janitors closets w Labs w Wellness center

Vocabulary to Know w Acute w Asphyxiant w “C” or ceiling w Carcinogen w Chronic w Combustible w Concentration w Corrosive w Cutaneous w Dermal EPA DOT Flash point Ignitable Ingestion Inhalation Irritant Lethal concentration Lethal Dose Mutagen Narcosis Oxidation Reactivity Sensitizer Teratogen Toxicity Toxic PEL TLV