Forensic Toxicology (Lab)
Required to protect the eyes in case of spills and splash from hazardous chemicals such as organic solvents, bases, and acids.
Goggles
Required to protect students fromhazardous vapours that may cause lung irritation.
Face Mask
Required to keep long hair during laboratory activities/experiments.
Hairnet
Required to protect the skin in case of spills and splash from hazardous chemicals. Must be worn at all times during laboratory hours.
Laboratory Gown
Required to protect the hands from hazardous chemicals such as carcinogenic solvents, acids, and bases, just to name a few.
Gloves
Required to protect the feet in the event of spills or splash from hazardous chemicals. Also, to allow proper balance when carrying different chemicals, apparatus, and equipment.
Closed Flat Shoes
Long-pants/jeans and short-sleeved shirts is a must to protect the skin in an event of a spill. Wearing shorts, mini-skirts, and loose long-sleeves are not allowed because these may pose risks during any chemical spill and chemical hazard.
Dress Code
_______________ such as earrings, necklace, bracelet, watch, and ring finger must be removed when performing laboratory experiments.
Accessories
Must be visible in the laboratory and must be ready and accessible in case of fire cause by explosion of any type.
Fire Extinguisher
Must be in the laboratory or accessible in the laboratory. This is used to exhaust toxic and nontoxic vapours or gases in the room.
Fume Hood
Used in an event of accident of any type during laboratory hours.
First Aid Kit
Used to contain and prevent the spread of spilled chemicals.
Saw Dust/Sand
Why is it important to check the label of chemicals provided by the laboratory technician?
To determine the risks and proper handling procedures
What is the proper way to smell chemicals in the laboratory?
Waft the vapor toward the nose with your hand
If a chemical comes in contact with your skin or eyes, what should you do first?
Wash the affected area with flowing water
What should be used to handle solid chemicals in the laboratory?
A specific spatula for each solid
How should liquids be dispensed from stock solutions in the laboratory?
By using specific dispensers like droppers, graduated cylinders, or pipettes
What should you do with unused chemicals after an experiment?
Dispose of them according to the instructor’s guidelines
Which of the following should be avoided to prevent chemical contamination?
Swapping droppers between different liquids
What should you do to avoid wasting chemicals during an experiment?
Obtain only the amount needed for the experiment and consider microscale preparation
When preparing a solution with acid and water, what is the proper way to mix them?
Add acid to water slowly
What equipment should be used when working with chemicals that emit toxic fumes?
Fume Hood
How many times should you rinse glassware with distilled or deionized water?
At least three times
Why is it important to consider microscale preparation of chemicals in the lab?
To prevent wasting chemicals and minimize risks
Explosives 1.1
Mass explosion possible
Explosives 1.2
Projection but not mass explosion
Explosives 1.3
Fire, minor blast
Explosives 1.4
Minor explosion hazard
1.5 Blasting Agent
Blasting agent, very insensitive
1.6 Explosive
Explosives, extremely insensitive, no mass explosion
Gases | Red, "flammable gas"
Flammable Gas
Gases | Green, "non-flammable non toxic gas"
Non-flammable non-toxic gas
Gases | White "toxic gas" or white "inhalation hazard"
Poison Gas
White and Red stripes, "flammable liquid"
Desensitized explosives, self-reactive materials, generic types, readily combustible
White upper and Red lower, "spontaneously combustible"
Pyrophoric materials, self-heating materials
Blue, "dangerous when wet"
Pure alkali metals
Yellow 5.1, "oxidizer"
Oxidizer
Yellow 5.2, "organic peroxide"
Organic Peroxide
White 6, "poison"
Poisonous materials
White 6, "infectious substance"
Infectious substance
Yellow upper, white lower, 7, "radioactive"
Metal Isotopes
White upper, black lower, 8, "corrosive"
Acids and Bases
Black and White stripes upper, white lower, 9
Anesthetics
Class 1 of chemical hazards compose of:
Explosives
Class 2 of chemical hazards compose of:
Gases
Class 3 of chemical hazards compose of:
Flammable Liquids and Combustible Liquids
Class 4 of chemical hazards compose of:
Flammable solids; Spontaneously combustible materials; Dangerous when wet materials
Class 5 of chemical hazards compose of:
Oxidizers and Organic Peroxides
Class 6 of chemical hazards compose of:
Poisons
Class 7 of chemical hazards compose of:
Radioactive materials
Class 9 of chemical hazards compose of:
Miscellaneous and Dangerous Goods
This contains the specific details as to the nature of the chemical compound, composition, and importantly, its hazard classification, handling, and first aid and accidental release measures.
Material Safety Datasheet
This is the portion of the Material Safety Data Sheet that shows the general information of the chemical compound.
Chemical Product and Company Identification (Section 1)
This is the portion of the Material Safety Data Sheet that shows the % composition of the chemical compound and its 50% lethal concentration (LC50) and 50% lethal dosage (LD50).
Composition and Information of Ingredients (Section 2)
This is the portion of the Material Safety Data Sheet that shows the hazard classification and possible risks to human health when in contact.
Hazard Identification (Section 3)
This is the portion of the Material Safety Data Sheet that shows proper preliminary medical care in case of any bodily contact.
First Aid Measures (Section 4)
This is the portion of the Material Safety Data Sheet that shows data on the compounds flammability and its extent.
Fire and Explosion Data (Section 5)
This is the portion of the Material Safety Data Sheet that shows proper measures in any case of accidental spills.
Accidental Release Measures (Section 6)
This is the portion of the Material Safety Data Sheet that shows the proper handling and storage of chemical compound based on its characteristics.
Handling and Storage (Section 7)
This is the portion of the Material Safety Data Sheet that shows the proper control and apparel used for controlling the hazard of the chemical compound.
Exposure Controls/Personal Protection (Section 8)
This is the portion of the Material Safety Data Sheet that shows the physical and chemical properties of a substance.
Physical and Chemical Properties (Section 9)
It is used to draw liquid through a pipet by suction.
Aspirator
It is used as a container for heating liquids due to its low
coefficient of thermal expansion. It is used as a container or reaction vessel since it is easy to clean.
Beaker
This is used during the process of titration for burets can
measure accurate volumes of liquids and deliver such in
controlled amounts. An acid buret is made up of all-glass
while a base buret has a rubber connection near the tip.
Beaker
This is used during the process of titration for burets can measure accurate volumes of liquids and deliver such in controlled amounts.
Buret
This is fitted to the iron stand and is used to hold the burets.
Buret Holder/Clamp
A stiff-bristle brush with long wire handle used to clean burets.
Buret Brush
It is used for high-temperatureignitions since it can withstand much higher temperatures than glass.
Crucible and Cover
This is a scissor-like metalforceps used primarily to pick up or hold hot objects.
Crucible Tongs
It is a vessel with a round bottom and a long neck from
which a side arm protrudes. It is primarily used for distillation, the process of separating a mixture of liquids with different boiling points through evaporation and condensation.
Distilling Flask
It is a conical, flat-bottomed flask with a narrow neck which can be used as a reaction vessel, as gas generator or as container for heating liquids.
Erlenmeyer Flask
It is customarily used as container for evaporating the
liquid portion of a mixture. If heated to dryness, it should be allowed to cool slowly before cold liquid is introduced.
Evaporating Dish and Casserole
A type of flask with a round body, a long neck and often a
flat bottom. It is used as a container to hold liquids and is designed for uniform heating, boiling, and ease of swirling.
Florence Flask
It is used to measure volumes of liquids, though not very
accurately.
Graduated Cylinder
They are used as support for test tubes, flasks, etc.
Iron Clamp/Utility Clamp
This is attached with a short length of rod fitted to its end with thumb screw.
Iron Ring
It is used as a support stand for the iron ring, clamp, or buret holder.
Iron Stand
They are used to pulverize orreduce the size of large crystals. Powdering of solids is done by a press-rotatory motion, not by pounding.
Mortar and Pestle
It is used for accurate measurement of volumes of liquids.
Pipet
A solid glass rod used for stirring or mixing solutions. It could also be used for dispensing liquids.
Stirring Rod
This wire-handled, stiff-bristle brush is used to loosen insoluble matter from the test tube during cleaning.
Test Tube Brush
This long soft-glass tubing with a flared bell-like end permits theintroduction of additional liquid into gas generators without dismantling the set-up.
Thistle Tube
It is used as a support duringheating of beakers, flask or evaporating dish.
Tripod
It is a type of laboratory flask calibrated to contain a precise volume at a certain temperature. This flask is used for precise dilutions and preparation of standard solutions.
Volumetric Flask
A squeeze bottle with nozzle and a screw-top lid used to
rinse various pieces of laboratory glassware.
Wash Bottle
This shallow, soft-glass dish can be used as cover for beakers, containers of small amounts of solid reagents or container for evaporating volatile liquids at room temperature.
Watchglass
This is a woven wire with a circular asbestos mat at the center.
Wire gauze
What is the first action you should take when a fire breaks out due to a Bunsen burner?
Turn off the gas valve tank
After extinguishing a Bunsen burner fire, how long should you wait outside the lab to ensure proper ventilation?
10 minutes
Which of the following could cause a Bunsen burner fire outbreak?
Leaking rubber tubing
When using a fire extinguisher during a chemical fire outbreak, what should you aim at?
The base of the fire
What should you do before opening a reagent bottle to maintain the purity of the chemicals?
Clean off any accumulated dust and rinse the neck and stopper with water
How should solid chemicals be transferred from a reagent bottle to a watch glass?
Using a clean, dry spatula
When dealing with narrow-mouthed containers, what should be used to guide the solid chemicals into the test tube?
A creased piece of clean paper
General Application of Alcohol | Commonly includes a 50% v/v (by volume) solution of ethylene glycol in water
Antifreeze
General Applociations of Alcohol | Ethanol can be used as an antiseptic to disinfect the skin before injections are given, often along with iodine. Alcohol-based gels have become common as hand sanitizers.
Medical
True or False: Tertiary alcohols cannot be metabolized into aldehydes and as a result, they cause no hangover or toxicity through this mechanism.
TRUE
What are two tertiary alcohols that have seen both medicinal and recreational use.
Ethchlorvynol and tert-amyl alcohol
How is ethanol used in treating poisoning?
It is administered to treat methanol and ethylene glycol poisoning
In which of the following applications is ethanol used as a solvent?
Dissolving water-insoluble medications and related compounds
This sample is also called alcohol, ethyl alcohol, and drinking alcohol.
Ethyl Alcohol/Ethanol
True or False
Ethyl alcohol is effective at killing a large range of viruses, but this doesn’t include
hepatitis A or poliovirus