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Chem 16.1 > Laboratory Safety Guidelines > Flashcards

Laboratory Safety Guidelines Flashcards

1
Q

Before the actual experiment, what must you do?

A

Prepare a work plan

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2
Q

What does a work plan contain?

A

(familiarize) objectives, instructions and procedures

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3
Q

What must you wear to ensure personal safety in the laboratory?

A

Prescribed Personnel Protective Equipment

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4
Q

What must be worn during experiments?

A

Safety goggles
Closed shoes (at all times)
Prescribed Laboratory Gown
Protective Face mask (recommended)

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5
Q

As an additional safety measure, ________ should be properly secured to avoid interference in your work.

A

long hair and loose clothing

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6
Q

What should you immediately report to your laboratory instructor?

A

any major spills, breakages, accidents
all physical injuries sustained in the lab (no matter how trivial)
all “near-miss” incidents

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7
Q

The students must wear PPE to enter the laboratory and carry out an experiment
What must you avoid to wear in the lab?

A

Avoid wearing jewelry

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8
Q

What is strictly prohibited in the laboratory? Why?

A

Eating, drinking and chewing gum

Most chemicals in the laboratory are poisonous

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9
Q

Why is smoking prohibited in the laboratory?

A

Some of the laboratory chemicals are flammable

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10
Q

Flammable solvents like organic solvents must be only used under the ____________

A

fume hood

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11
Q

Perform experiments only during the _________ and only under the supervision of your ____________

A

scheduled laboratory period, laboratory instructor.

Never work alone

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12
Q

Only __________ experiments must be carried out during your laboratory period. Moreover, no _____________ from the experiment procedures described in this manual, is allowed without the permission of the laboratory instructor.

A

scheduled, additional experiment procedures or deviations

DO NOT PERFORM UNAUTHORIZED EXPERIMENTS.

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13
Q

NEVER REMOVE CHEMICALS FROM THE LABORATORY AND STOCKROOM - why?

A

Improper handling and misuse of these chemicals could pose great health and environmental hazard.

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14
Q

Do not play games or engage in horseplay in the laboratory. Concentrate on performing your experiment.

A

NO LOITERING IN THE LABORATORY

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15
Q

DO NOT LEAVE AN ON-GOING EXPERIMENT SET-UP *.

A

UNATTENDED

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16
Q

Carefully read the * of chemical reagent containers – check the *

A

labels, formula and the concentration.

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17
Q

Examine the * and know where to find specific information on the hazards, toxicology, immediate first aid, and correct disposal of the substance listed on it

A

Material Safety Data Sheet (MSDS)

18
Q

Know the hazards associated with the chemicals as well as their physical and chemical properties.

A

HANDLE ALL CHEMICALS WITH EXTREME CAUTION.

19
Q

Most chemicals are * . Exercise caution when handling * acids and * .

A

corrosive

concentrated, ammonia

20
Q

Concentrated acids must only be used under the *

A

fume hood.

21
Q

In case of a chemical spillage, immediately take off any * clothing and wash off spilled chemicals on the skin or eyes with copious running water for at least +

A

contaminated

15 minutes.

22
Q

Take extra care in handling chemicals in the form of * . It is recommended that you wear a mask to avoid inhalation of these chemicals. If these come into contact with the eyes, wash with copious running water continuously for at least 15 minutes. Consult a physician if needed.

A

fine dust or powder

23
Q

Observe * when working in the laboratory.

A

cleanliness and orderliness

24
Q
  • in the laboratory is a must
A

Cleanliness

25
Q
  1. Avoid * the reagents.

2. Practice the habit of * droppers and rods immediately after use.

A

contaminating

rinsing

26
Q
  1. Refrain from accumulating dirty glassware. Use * (e.g. while heating solutions) to clean glassware.
  2. Always wash or wipe off * from reagent bottles.
A

waiting times

dirt

27
Q
  1. Clean up * immediately even if it is only water.

6. * before leaving the laboratory and dry them on a clean towel.

A

spills, water

Wash your hands thoroughly

28
Q

Dispose acids and bases into *, respectively, to prevent clogging of sinks or premature corrosion of pipes.

A

acid waste container and base waste container

29
Q

Excess and waste potassium permanganate (KMnO4) should also be thrown into * containers since this is a powerful oxidant that may corrode sink pipes.

A

inorganic waste

30
Q

Excess and waste * should also be thrown into inorganic waste containers since this is a powerful oxidant that may corrode sink pipes.

A

potassium permanganate (KMnO4)

31
Q

Dispose organic wastes into *

A

halogenated organic waste containers or non-halogenated organic waste container.

32
Q

All solids used in experiment procedures (filtration, chromatography, etc.) should be disposed into *

A

contaminated solid waste containers.

33
Q

Other solid wastes should be disposed into the * available inside the laboratory.

A

trash bin

34
Q

All broken glassware including * used in experimental procedures such as melting point determination, chromatography, etc. should be disposed in *

A

capillary tubes, broken glassware container.

35
Q

What are the 4 types of waste and where should they be disposed of?

A 
Inorganic waste (acids and bases + Potassium permanganate (KMnO4)
Organic waste (non/halogenated organic waste containers
Solid waste (contaminated solid waste containers; trash bin)
Broken glassware (like capillary tubes - broken glassware container)
36
Q

Flammable organic solvents

A

ethanol, methanol, acetone

37
Q

Since there are few flammable organic solvents, a chemical fire can occur. Also, there is a small risk of electrical fire.
In case a fire occurs, what is the first thing you should do?

A 
Remain calm
(Call the attention of your laboratory instructor and leave the laboratory)
38
Q

Fires in small containers can be extinguished by * over the burning container. Alternatively, cover the burning container with *. Never use * towels.

A

inverting a small beaker or any other similar equipment
soaking wet towels
dry

39
Q

Remove any flammable material such as * from the area of the fire.

A

reagent bottles with flammable chemical

40
Q

In case of a person inhaling smoke or toxic fumes, transfer him/her to a *.

A

well-ventilated area

41
Q

In case your clothing should catch on fire, use the *

A

safety shower

Chem 16.1 (13 decks)

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