Safety Quiz

smell

Waft it toward your face

Pipetting

a way to move a substance from one container to another and its very effective

Red fire pull alarm boxes

are located on every floor near the stairs and elevators on the wall at eye level

Fume hood must be used for all reactions with noxious or highly combustible chemicals

if asked to check the chemical's odor, carefully WAFT the fumes with small movements Do NOT inhale deeply and Never test a chemical odor unless instructed to do so!

Acids and bases

particularly hazardous materials because they are very corrosive. They can cause serious burns to skin and eye, if splashed on skin or eyes, flush the affected areas for at least 15-20 minutes with cold water. If diluting a concentrated acid, always add the acid slowly to a large amount of water with stirring, to avoid splattering

Apron

protects the scientist and clothes usually used for concentrated acids and it's easy to take off if urgent

Electrical Equipment

provides a possible cause of electrocution. Sparking from frayed or broken cords also may cause ignition of solvents. Reports such hazards to the instructor and stock room personnel and do not use the equipment in this condition.

Hot Objects

should be handled with extreme care. Allow to cool and handle with tongs or lined, heat-resistant gloves.

Proper (nitrile) gloves

should be worn when handling concentrated or toxic chemicals. Lab manual will specifically indicate when gloves are necessary Wearing gloves, touch only the chemicals and glassware needed to perform procedural steps. Do NOT handle objects commonly used without gloves (computers, sink handles, door knobs) because it will contaminate the surface.

NFPA (National Fire Protection Association) 704 or NFPA Diamond

the standard for the identification of hazardous materials and emergency response Can be found on reagent bottles, gas tanks, vehicles that transport chemicals, and doors to rooms containing certain chemicals. Their main purpose is to quickly indicate to first responders the dangers presented by the substances present. However the fire diamond is useful for anyone, especially a student, who is handling chemicals Diamond shaped sign is divided into 4 sections: health (blue, left), flammability (red,top)

When heating liquids in test tubes

use a clamp to hold the tube. heat the liquid gently on the side of the tube near the liquid level, pointing the tube away from people. Clamp the tube so it suspended in a water bath when heated to avoid hot spots and prevent violent boiling that could occur if the test tube is resting at the bottom of the water bath next to the hotplate.

No changes in written experimental procedures

without specific authorization of the instructor. If changed without permission will result in immediate disciplinary action

Extraneous Materials

(books, coats, etc) cutter the working areas and create unsafe conditions. Place these items on a shelf or hook out of harms

Lab Coat Fitting Guide

- Must be appropriate size -Reasonably comfortable -Key factors include lab coat circumference and length, as well as sleeve length - If wearing a sweater underneath, make sure lab coat can be fully enclosed around it Sleeves Length: No bare skin between the end of the sleeves and any gloves Should not require rolling to prevent them from interfering with work

When should I wear my coat and eyewear

Lab coats and eyewear must be worn at all time in teaching labs. Lab coats must be knee length and completely buttoned

Most common injuries are cuts and puncture

cleaning up broken glass ( do not use hands) instead use pan and a broom and dispense it into a bin specifically for sharp things

Clean Up

collection bottles are located in the fumehood. Read the labels on the collection bottles and use the container only for the chemicals labeled on the container. Never put acids, bases, or oxidizing/reducing agents into the organic disposal containers or it might cause a violent reaction. Your complete cooperation will help maintain the quality of our water system. When in doubt, ask the instructor or stockroom personnel.

Unsupervised experimentation

is not permitted under any circumstance. An instructor must be present in the lab at all time when students are working. No horseplay or pranks

If you spill anything on clothes

modesty goes out the window, just take them off

Computer Keyboards

must be covered with plastic wrap to avoid contamination

Shorts, mini-skirts, open-toed shoes, long scarves, free long hair

not permitted in the lab because it will entangle with the equipments and prevent emergency evacuation.

Hair must be tied up, no droopy clothes (sleeves), no sandals, or it will catch on fire, knock stuff over, thwart vision, fall into flasks

Clothes should cover your body as much as possible; I like to go long-sleeve even Long pants, closed-toed shoes, and socks; clothes that cover the entire torso Always wear eye protection (glasses don't count) Tingling/irritation sensation in the eyes, use eyewash Do not eat or drink the land Avoid working alone in the lab Hazard Material/Hazmat diamond lists information of the toxicity of the substance on a scale of 0 to 4. Where 4 is very toxic and 0 is not toxic Blue = health - 4 (Exposure will kill you) Red = flammability - 4 (Very flammable, impossible to control outside of a closed container) Yellow - chemical reactivity -4 (Capable of exploding at room temperature) White - extra information (radioactivity, reacts with water) Read the MSDS chemical before handling it MSDS - Material Safety Data Sheet - find more information of any substance Assume everything that's not water is flammable

My lab coat is damaged, what do I do?

Coats with holes, tears, or otherwise damages beyond repairs are not safe to wear and should be replaced

GHS (Global Harmonized System)

Created by the United Nations in the 1990s The goal was to create a set of symbols that would be universally understood Nine pictograms are used to depict the classes of hazards with chemicals

How to properly put on (don) and take off (doff) a lab coat

Donning a Lab Coat 1. insert one arm into the sleeve 2. Insert the other arm into the other sleeve 3. Adjust the shoulders and sleeves until comfortable 4. Close the front completely, buttoning all buttons and making sure the coat is knee length. Do not alter the coats Doffing a lab coat: 1. Release closures and open front 2. Slide fingers of one hand under cuff of opposite sleeve, pulling arm from sleeve 3. Pull the arm completely from the sleeve 4. Slide finger of free hand under cuff remaining sleeve and pull arm from sleeve

Contaminated Lab coat

If your lab coat is grossly contaminated with chemicals it will need to be replaced and disposed of as hazardous waste

Traditional Lab Coat

- Protect the wearer's skins and garments from incidental splashes -Appropriate in general chemistry and organic chemistry undergraduate lab courses with minimal use of flame Not designed to protect against flames, flammables, or blood-borne pathogens. No specific chemical resistance

When dilution of an acid is called for

Always add the acid slowly to water and stir. Cool the container in an ice bath, if necessary

Don't test by tasting something

And never pipette by mouth

Always wash hands -

Before leaving the lab to avoid accidental contamination

If wanting to pour a substance

COMMIT (destroy the ST)

Safety Equipment

Fire Extinguishers - are located by each door of the lab. Be sure to note the location of the extinguishers in your lab Sodium Bicarbonate and Solusorb - are located in buckets in the front of the lab and are used to neutralize/ absorb chemical spills on the floor or lab tables. A 5-gallon universal spill kits is also available for larger spills

Fire

If something catches fire, STOP DROP ROLL Never run to a fire blanket or shower - you must immediately drop and roll to smother the flames Running increases the flow of oxygen and increases the burn rate If a fire should occur in the laboratory, fire extinguishers are in each corner of the lab room - know their locations if the building fire alarm goes off, turn off hot plates and all other electrical devices. Ensure the equipment is in a safe and secure mode. Leave the building by the nearest stairwell exit. Do not use the elevators (remain in a group with your TA outside away from the building and do not re-enter the building without proper authorization)

How do I clean my lab coat?

If your lab coat is not contaminated with chemicals, you may wash it in your normal wash.

Chemical Spills

Immediately flush eyes with cold, clear, water for at least 15 minutes if a chemical splashes in your eyes. Eye wash fountain is located near the door in each one of the labs Push the lever forwards to deliver a steady, gentle stream of water into the eyes Be sure to pull back the eyelid and roll back the eye to flush the affected area completely if a chemical splash occurs while you are wearing goggles and the eyes are unaffected, flush your face without removing the goggle. The eyes can become contaminated as one trie to remove unrinsed goggles. After the goggles are cleaned, rinse the eys as instructed above. if the eyes are already affected, immediately remove goggles and being flushing the eyes as described above if harmful chemicals are spilled on clothes remove the clothes and use the safety shower in the half to rinse affected areas. The threads in cloth can act as small capillary tubes and quickly spread the chemical over a large portion of your body Some chemicals may need to be neutralized or may be absorbed through the skin

When should I NOT wear my lab coat?

Lab coats should not be worn outside of lab, in designated clean areas, at home, or in the restroom

Inhaled nitric oxide (iNO): Side effects

Long-term effect: Headache, nausea, disorientation, dizziness, pulmonary edema, death

PPE (Personal Protective Equipment)

Must be worn at all time - Approved eye protection (shatterproof goggles) contact lenses must be avoided whenever possible because or corrosive materials and or chemical vapors can be trapped between the lens and cornea where the chemicals may not be rinsed away, even during intensive writing -Lab Coats must be worn at all times in the laboratory. Do not wear the lab coat any where else, you may contaminate other items with the chemicals the coat has been exposed to

The safety shower is located in the hall

Pull on the ring and chain to operate the shower. Use the shower to wash serious chemical spills on clothing and skin. Horseplay in the vicinity of the showers will not be tolerated - false alarms by pulling th chain may correspond to thousands of dollars in damage to office or lab materials on lower floors An eyewash is located next to one of the laboratory doors. The eyewash operates by pushing the lever forward. Two gentle streams of water are directed upwards. For more effective washing, hold back the eyelids and rotates the eyeball to remove all chemicals. BE sure the student is not wearing contact lenses Fire blankets are located in a thin, vertical container in the hall between the laboratory doors. Insert arms into the loops hanging out of the cabinet and rotate to wrap the blanket around you. The blanket will smother flames on clothing Use your cell phone are the stockroom phone to call 911. After calling, students NOT AFFECTED by the emergency should station themselves at the building entrances and loading dock so they can direct emergency teams to the scene of the accident

Safety Data Sheets

SDS provides detailed info on chemical hazards, handling, storage, disposal, health effects, emergency procedures for exposure to a chemical. GHS Pictograms are found near the beginning of the SDS ( Read the hazard and precaution statemnets directly beneath the pictograms for a quick summary of a chemical's hazards) N FPA values tend to be listed near the end without the colored diamond We are required to populate the SDS folder in this notebook with the SDS for each chemical used in lab. We will be required to put the NFPA fire diamond for each chemical into a Chemical Table in your Pre-/IN-Lab notebook age.

Cracked or broken glassware

Should NEVER be heated, pressurized, or subjected to vacuum, regardless of how small the imperfection may appear. Broken glassware should be returned to the stockroom for repair or proper disposal

Burns

Small burns from touching hot objects should be flushed with cold water for 20 minutes. Do not apply ointment to burns. Major burns need immediate medical attention. Get the stockroom involved and call 911

Cuts

Small cuts should be rinsed thoroughly and examined for traces of foreign materials such as glass, chemicals, etx. Bandages are available in the stockroom. Severe cut and bleeding must be treated by applying direct pressure on the wound to control the rate of bleeding. Seek medical assistance immediately. Get the stockroom involved and call 911

Spills must be retained and removed immediately

Spill clean-up buckets containing absorbent materials are located in the front of the lab room near the blackboards Work areas (including balances, instruments, desktops, hood areas) should be cleaned after each use to remove any chemical residues

Earthquake

Stay Calm Make sure your work area is safe Secure chemical bottles, if possible. Protect yourself from falling debris such as plaster, pipes, light fixtures. Turn off all electrical devices once the shaking stops. Do not exit the building unless the building itself becomes too dangerous to occupy because considerable danger can exist at the outside doorways from falling glass and other structures. Remain in a group with your TA

All chemicals must be stored in Labelled containers

The label should contain the compound name, amount or concentration, the students' name, TAs name and dat

Never add water to a concentrated acid!

The reaction is very exothermic and spattering can occur. The ejected liquid may consist mostly of concentrated acid

Forcing a thermometer through a stopper making the thermometer break and impale the hand

Use water, lubricant, or vaseline to make it easier to push the thermometer through a stopper hold the thermometer very close to the edge do not have the hand on the other side

Read the Labels on the reagent bottle

Verify that the formula of the chemical is the one you need for your experiment. Note the concentration, if a liquid. Check bottles for warnings specific to the particular chemicals in use. NOTE CAREFULLY! The absence of a warning label should never be misconstrued as an identification of the absence of dangerous properties. Safety and toxicity information about chemicals used in your experiments can be found by looking up the "Safety Data Sheet" (SDS).

Eating, Drinking, and smoking are strictly forbidden in the laboratory. This includes chewing gum

When pipetting liquids, always use a pipet bulb; never pipet liquids by mouth

Acids and bases dilution is the solution to pollution

When the results of bases or acids is diluted, all thats left is common ions that then can be dispense into the sink not doing will hurt the environment

Can I use my lab coat from another lab

With instructor's approval, the same lab coats may be used for different chemistry lab course

Emergency Equipment

in lab rooms and hall areas (eyewash fountains, showers, fire extinguisher, fire blankets, and spill clean up buckets) If safety equipment is to be used call the TA and stockroom personnel for help Note the location of emergency exit routes

For other chemicals, dilution is not the environemtn

putting it in the correcnt trash container Always know the right way to dispose of something before you even start to use it

Reporting Accidents

use the phone in the stockroom or your cell phone and call 911 for the UCI police. After reporting the problem, send students to every exit in the building to meet the police and direct them to the location of the accident. Fill out a brief "Incident report" Reporting an accident will not affect your grade. Please be cognizant of potential hazards BEFORE a serious accident occurs

fume hood

ventilates the air out to prevent breathing in potentially toxic gaseous chemicals Reason why it's impossible to keep chem labs at the proper temperature because AC and Heaters are constantly running Reminder to maintain the sash at the correct level or it will start buzzing because it will not properly ventilate the gaseous chemical