safety first! what are some do’s and don’t in a lab?

SAFETY FIRST!

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

SAFETY EQUIPMENT IN THE CLASSROOM

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

CHEMICAL HOOD

CHEMICAL SAFETY SHOWER

Used to flush copious amounts of chemicals off your body.

May have an eye wash station attached to it.

WHEN TO WEAR YOUR SAFETY GOGGLES

Always wear safety goggle’s when you use: chemicals heating materials glassware

Handling Accidents and Spills

React quickly and calmly to accidents. Report accidents to your teacher. Review MSDS sheets if needed Clean up spills with proper supplies. Clean up a solid spill or glassware with a

broom and dustpan and dispose of it where indicated by your teacher.

APPROPRIATE CLOTHING

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

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

The main concern is that loose clothing or hair will be caught in the machinery and will cause bodily damage.

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.

Caution, hair preparations such as hairspray, gels, and mousse are often very flammable.

THE RIGHT TO KNOW LAW

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

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

MSDS stands for = Material Safety Data sheet

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

TYPES OF CHEMICAL EXPOSURE

What does Exposure mean? Two types of chemical exposure:

Acute

Chronic

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)

CHRONIC EXPOSURE 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)

CHRONIC HEALTH EFFECTS

Cancer Respiratory problems Birth defects Mutations

WHY DO WE NEED TO KNOW ABOUT CHEMICAL HAZARDS ? To protect yourself To protect others 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.

Signal Words Caution Warning Danger

These words are often followed by such words as:

•Combustible•Flammable •Explosive•Oxidizer•Reactive

•Corrosive•Poison•Irritant•Carcinogen•Toxic

COMMON WAYS CHEMICALS ENTER OUR BODIES

• Ingestion (digestion)

• Skin / Eye Contact

• Inhalation (inhale)

Types of hazards that can affect humans

Health hazards Fire hazards Reactivity hazards

Chemical Warning LABELS

Name of the chemical Chemical formula Hazard warning Manufacturer Hazard statement Handling and storage Notes to physician

Signal words Precautions Antidotes Fire, spill and leak

instructions

RTK Worksheet

Chemical Warning LabelsChemical warning labels may have

the following information listed:

Identity of the chemical

Chemical Warning LabelsChemical warning labels may have

the following information listed:

Hazard Statement Signal word First Aid

Hazards for skin Hazards for

swallowing Call poison control

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

Manufacture

How dangerous can Toothpaste be?

COLOR CODING ON CONTAINERS

RED - FLAMMABLE

YELLOW - REACTIVE

BLUE - TOXIC OR POISONOUS

WHITE - CORROSIVE (to eat through) orCAUSTIC (to burn)

GREEN - NONHAZARDOUS

NUMBER SYSTEM4 - extremely dangerous

3 - very dangerous

2 - moderately dangerous

1 - irritating

0 - not known to be toxic

D.O.T. classifications

Tolerance Limit Value (TLV)

The amount of chemicals that a human being can be exposed to without side effects.

Warning Signs

Warning Signs

Vocabulary to Know

Oxidation –

Toxic –

Diluted –

Reactivity –

Exposed to oxygen

Will react (change) when something is added to it.

Deadly

To weaken with water.

Vocabulary to Know

Carcinogen-

Combustible- Concentrated-

Corrosive-Cutaneous -

Causes cancer

Will catch on fire

To strengthen without water.

Will eat through

Affecting the skin

Vocabulary to Know EPA – DOT – Ignitable – Ingestion – Inhalation –

Lethal Dose – Mutagen –

Environmental Protection AgencyDepartment Of Transportation

Will catch on fire

To eat

To breath

Dose of something that will kill you.

Causes mutations

Extra Credit Find the name of a chemical in your house. Type in FlinnSci.com Click on “Free MSDS” collection. Type in the name of your chemical correctly

in the search box. Find your chemical and click on it! Maybe

more than one!

*Extra Credit* Read your MSDS chemical data sheet. Print the MSDS sheet or e-mail a copy to me @ Kevin.madigan@nccvt.k12.de.us 1. Find three interesting facts on your MSDS. 2. Tell me about any hazards? (fire, health, reactivity)

3. Any signal words on the container? 4. Where did you find this chemical? When is this due?...