State of Arkansas Requirement: Safety Training for Teaching Assistants & Research Students

Fall Semester 2012

Jabin Miller, Rick Tarkka, and Robert Mauldin

Safety Matters!

Safety in Teaching & Research

Dr. Gleb Mamantov, 1931-1995

Inventory Spreadsheet Contains: Compound:

Name State CAS Number Lot #

Container: Size Type Condition

Percent remaining Date of Arrival Stability and storage information Manufacturing Company NFPA Hazard Codes

Empty bottles

Acid solns

Stockroom Office

Bases Organic glasswa

reResins

Bulk Inorgani

c

Inorganic

Chemicals

Metals

Organic Chemicals (A-S)

General Chemistry Solns

Oxidizers Plasticware/ equipment

Indicators

Glass Tubing Glassware/ equipment

Flammables and

Flammable Waste

Fume Hoods/Acids

Refrigerator

Air ConditioningFiles

Temporary waste station

Attic

Attic

Exit

Exit

Fire extinguisher

Base solns

Chem

demos

Key:

First aid kit

Bulk Organ

ic

Prepped

Organic Labs

Inorganic Waste

OxidizersWaste

Organic

Waste

Eye Wash/Safety Shower

Sink

Sink

Sink

Dumb-

waiter

Sink

Attic/Glassware Storage

Safety Shower

Stockroom Schematic

Organic Chemical

s (T-V)

House-hold goods

Personal Safety Precautions

213

OX

FIRE HAZARDFlash Point4 – Below 73 F3 – Below 100 F2 – Below 200 F1 – Above 200 F0 – Will not burn

REACTIVITY4 – May detonate3 – Shock and heat may detonate2 – Violent chemical change1 – Unstable if heated0 – Stable

HEALTH HAZARD4 – Deadly3 – Extreme danger2 – Hazardous1 – Slightly hazardous0 – Normal material

SPECIFIC HAZARDOxidizer

OXAcid ACIDAlkali ALKCorrosive

CORUse NO WATERRadiation Hazard

The MSDS for every chemical in your lab must be available to you. We have them available in paper form, but the quickest and easiest way to access MSDS is via the Internet. A computer is available in the stockroom office specifically for this purpose.

Material Safety Data Sheets (MSDS) for any chemical give information regarding hazards, reactivity, and disposal. MSDS are available in hard copy upon request, or electronically from the following web-sites:

www.hazard.comwww.fisherSci.com

www.sigmaaldrich.com

ACS-Required Comprehensive Report for Research “A student using research to meet

the ACS certification requirements must prepare a well-written, comprehensive, and well-documented research report including safety presentations.”

Address MSDS safety information regarding handling and disposal; address safety issues particular to your research project.

Caution signs for doors

Safety Equipment

Remember Safety Glasses!

Your eyes are important.

Please wear safety glasses!

Gloves

When using gloves, make sure that the composition of the glove will not allow the chemicals I am using to penetrate the glove. Latex gloves work well for aqueous solutions and pathogens, but the blue nitrile gloves have better resistance to organic solvents.

CAUTIONFor the safe operation of this safety shower and

eyewash station, please remove any electronics from the

vicinity and do not store anything below them.

The main function of a fume hood is to exhaust gases that are generated in the hood to the outside.

Make sure the exhaust blower is operating. Do not put your face inside!Minimize storage of chemicals.Close sash when not in use.Clean spills immediately.Work with the sash at the proper operating level.Use emergency purge if needed.

The stockroom is a common area…

"Picture a pasture open to all. It is to be expected that each herdsman will try to keep as many cattle as possible on the commons.... As a rational being, each herdsman seeks to maximize his gain. Explicitly or implicitly, more or less consciously, he asks, 'What is the utility to me of adding one more animal to my herd?'" 

The Tragedy of the Commons, Garrett Hardin, Science, 162(1968):1243-1248.

Urgent Notice!There is a new system for borrowing chemicals:If you borrow a stock chemical (not mixed solutions), you must fill out a borrow card with the following information and place it on the shelf in place of the borrowed chemical:

- Chemical Name- Your Name- Your Professor’s Name- Room in which the chemical will be used

**Borrow cards are NOT necessary for solutions unless it is a stock bottle.

SECURITY NOTICETHE STOCKROOM IS A RESTRICTED AREA.

DO NOT OPEN THE DOOR TO ANYONE OTHER THAN UCA

PERSONNEL AND APPROVED STUDENTS.

IF YOU ARE UNSURE, CONTACT THE MAIN CHEMISTRY

DEPARTMENTAL OFFICE BEFORE ALLOWING ACCESS.

Avoid unlabeled containers!

Labels must be descriptive!

Chemical Waste

Waste containers must be labeled with the following: Name of waste (solute & solvent) Estimated amount of waste Estimated concentration of solute(s) Experiment in which the waste was

generated (if applicable)

Safe Storage: Corrosives

Corrosives Examples: thionyl chloride, bromine, sulfuryl

chloride, benzoyl chloride, triethyl amine, trihydrofluoride, benzene sulfuryl chloride

Safe Storage: Acids

Oxidizing Inorganic AcidsExamples: sulfuric, nitric, chromic, and perchloric acids

Organic acids &Non-oxidizing Inorganic

AcidsExamples: acetic, butyric, and formic acids;

hydrochloric, hydrofluoric, hydrobromic, hydroiodic, and phosphoric acids

Chemical Storage

Inorganic chemicals and solutions are organized alphabetically by chemical name, NOT chemical formula. Eg. NaCl would be filed with S, for

sodium chloride, not N.

Waste Storage

There are areas in the stockroom set aside for specific types of waste (see next slide).

To store waste containers until the following year, ensure that waste containers: Are labeled appropriately Are tightly sealed

If the waste chemical should be kept cool, please store with the refrigerator waste.

Empty bottles

Acid solns

Stockroom Office

Bases Organic glasswa

reResins

Bulk Inorgani

c

Inorganic

Chemicals

Metals

Organic Chemicals (A-S)

General Chemistry Solns

Oxidizers Plasticware/ equipment

Indicators

Glass Tubing Glassware/ equipment

Flammables

Fume Hoods/Acids

Refrigerator

Air ConditioningFiles

Temporary waste station

Attic

Attic

Exit

Exit

Fire extinguisher

Base solns

Chem

demos

Key:

First aid kit

Bulk Organ

ic

Prepped

Organic Labs

Inorganic Waste

OxidizersWaste

Organic

Waste

Eye Wash/Safety Shower

Sink

Sink

Sink

Dumb-

waiter

Sink

Attic/Glassware Storage

Safety Shower

Stockroom Schematic

Organic Chemical

s (T-V)

House-hold goods

Chemical Storage

Incoming chemicals must be labeled with the following: Date received

NFPA hazard diamond (if not labeled by company)

Chemical Waste & Shelf Life

Waste Disposal

Waste Disposal

Empty Chemical Containers These metal trash cans are for empty glass

chemical containers. “Empty” is defined as less than 2.5 cm of residue or less than 3% of the total weight. Depending on the chemical, use water or an organic solvent to rinse the container before placing in a metal trash can. If the chemical is hazardous (toxic, corrosive, reactive, or highly flammable), collect the rinse and place in a labeled chemical waste container.

Transporting 4-L Containers

Take care when transporting chemicals and use rubber carriers for glass, 4 L containers.

Mercury Safety

If elemental mercury is spilled, notify your research advisor immediately for safe cleanup and disposal.

NMR Safety

Keep ferromagnetic objects away from strong magnetic fields, such as near our Nuclear Magnetic Resonance (NMR) instrument.

Check the Label!

Check the label on each chemical container before using it to make sure it contains what is needed for the experiment. Only take as much of the chemical as is needed for the experiment at hand.

Fire Safety

If a small fire is confined to a container, I will allow it to burn until the fuel has been exhausted or cover the container. If there is a small fire that is not in a container, use a fire extinguisher. If there is a large, open fire, leave the area immediately and notify others. If clothing is on fire, Stop, Drop, and Roll (not run!).

New fire blanket instructions posted.

Flammables and Open Flames Do not use an open flame in the

vicinity of flammable organic solvents.

Flammables & Open Flames Do not store oxidizers near

flammables with an NFPA rating of 2 or above.

Gas Cylinder Safety

Check for leaks in gas cylinder connections, make sure that gas cylinders are strapped to the wall, and used a cylinder cart for transporting gas cylinders (with caps).

Liquid Nitrogen Safety

Recognize that at the temperature of liquid nitrogen (77 K), oxygen in the atmosphere condenses and might react with chemicals in the container or liquid nitrogen trap to form a potentially explosive mixture.

Do not use liquid nitrogen in a small, confined space since the nitrogen can displace oxygen in the air and result in asphyxiation.

“Bomb Room” Shelving

Tornado Shelter in Laney Hall

“Shooter” Security