Laboratory Flashcards
What should be the pH of a waste for it to be considered as an acidic waste
pH<= 2
What should be the pH of a waste for it to be considered as an alkali waste?
ph=> 12.5
Refers to a person who produces hazardous wastes, through any institutional, commercial, industrial or trade activities
waste generator
Wastes containing mercury and arsenic should be classified as _____
wastes with inorganic materials
In handling acid wastes, what type of protective gloves should be used?
Rubber gloves
What type of container must be used for acid or alkali wastes
Polyethylene Drums
In case of acid spils, what can be applied to the spill before treatinf it with adsorbent material
sodium bicarbonate
Hazardous waste characteristic which applies to waste liquids with a flash point less than 140 F
Ignitability
Hazardous waste characteristic which applies to aqueous solution with a pH less than or equal to 2 or greater than or equal to 12.5
Corrosivity
Hazardous waste characteristic which applies to materials that are normally unstable or explosive
Reactivity
Hazardous waste characteristic which applies to wastes that have the potential to contaminate groundwater if improperly disposed
Toxicity
Solid waste management practice which refers to the controlled decomposition of organic matter by microorganisms, mainly bacteria and fungi, into a humus-like product
Composting
Biodegradable wastes such as food waste, garden waste, animal waste and human waste that undergo biological degredation under controlled conditions
Compostable wastes
Waste materials refer to items designed to cut or puncture skin and sharp items with human blood and body fluids or bacteria
sharps
These are organic chemicals that are resistant to environmental degradation through chemical, biological, and photolytic processes
Persistent Organic Chemicals (POPs)
This refers to any liquid that passes through a landfill and has extracted dissolved and suspended matter from it.
Leachate
TRUE OR FALSE. Store concentrated acids and bases separately in enclosures made of corrosion-resistant materials.
True
TRUE OR FALSE. Keep fire extinguishers away from locations where chemicals are stored or used.
False
It is a document that provides useful information on the chemical hazards, advice on safe handling, use and storage, and the emergency measures to be followed in case of an accident. It usually contains 16 headings.
Safety Data Sheet
Type of chemical that can cause an allergic reaction in the airways following inhalation of the chemical.
Respiratory Sensitizer
Ammonia solution can be stored with the following chemicals except for:
a. acetic acid solution
b. sodium hydroxide solution
c. 2-propanol solution
d. cyclohexane solution
a. acetic acid solution
First consideration for chemical storage shall be based on its:
compatibility with other chemicals
Which of the following is an oxidizing chemical?
a. potassium dichromate
b. sodium hydride
c. magnesium
d. sodium
. potassium dichromate
Sealable enclosures containing desiccants used to protect chemicals which are hygroscopic or which react with water from humidity.
Desiccator