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Are these pure substances safe to consume. - Coggle Diagram
Are these pure substances safe to consume.
What defines "safe"
How to test for safety?
How to test for the organic substance?
Acidified dichromate
Oxidising agent
Narrow down the functional groups to primary alcohols and aldehydes.
Colour change from orange to green if it oxidises the substance.
Tollen's reagent test (aldehydes and ketones)
What type of Safety?
Safe to drink in large amounts
Safe to injest?
How is safety measured
How does it react inside the body?
Does it react in response to oxygen?
Example: Ethanol becomes aldehydes when oxidisedm which is toxuic to the body.
What is the substance?
Solid
Does it dissolve in water?
Is it conductive?
Liquid
Properties of solution
Melting point
Boiling point
Freezing point
Gas
Pure substance?
Is it a compound of mixture?
Reactivity with oxygen
pH level
Acid
Safe range between 6-8.5
Carboxylic acid
Base
pH tester
Low pH indicates acid (could be carboxylic acid)
Organic or Non-organic substance
Organic
Alchohols
Primary, Secondary or tetiary
Carboxylic acids
pH
strong or weak?
Aldehydes
Toxic to the body (not safe)
Ketones
Does it burn or not?
If it burns it is most likely organic
Vinegar does not burn
Ionic Covalent or Metal
Percipitation tests (for soluble ionic compounds)
To consume?
How much is being consumed?
Meausurement of injestion
Volume
Mass
Concentration
What is consuming it?
Different organisms will react differently to the substance.
Tolerance (how much is too much?)