Poison

How would you identify if your victim was poisoned? You would first have to examine the victim and the surroundings. If your victim had poison in the drink, then it would be necessary to test the drink for any strange substances.
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Definition of Poison

Any substance that impairs health or destroys life when ingested, inhaled, or absorbed by the body in relatively small amounts. Some toxicologists suggest that, depending on the dose, all substances are poisons. Many experts state that it is impossible to categorize any chemical as either safe or toxic and that the real concern is the risk or hazard associated with the use of any substance.

Common Poison Sources
Bug bite

Anti-freeze  

Cyanide

Rat poison

Aspirin

Ammonia

Anything that is given to a person with an allergic reaction towards the chemical, object, animal, food, etc.


Main Signs of Poisoning

Enlargement of pupils

Nausea

Excessive drooling or foaming

Bleeding from an orifice          

Change in skin color

To test for sugar, it is necessary to add a reagent to the substance and the color of this substance should turn purple. But why would testing sugar be useful? If your victim is diabetic, giving them sugar is deadly and harmful for their system. Therefore, sugar poisons them. This also relates to people with allergic reactions. For example, if the victim is allergic to honey and there was a honey cough drop found in the crime scene then you would have found the murder weapon. This could also lead to knowing more about the murderer. The fact that the victim was allergic to honey could hint that the murdered knew the person well enough to know what the victim was allergic to.


Household Ammonia gives an unpleasant odor, it has a PH of 7, and it is pink purple in the PHTH solution. Those are the tests for household ammonia. It is crucial to identify ammonia since it is very poisonous, especially if it is mixed with Clorox.

Is it suicide, or a mixture in the drink? Aspirin could easily be hidden in a drink to poison the victim. Aspirin has a PH below 7, and in BTB, the substance turns yellow. Aspirin can be found in any kitchen cabinet. Therefore it is not unusual to have a victim that has been poisoned by Aspirin.



Cyanide and Iodine are two different substances that have a serious effect on a person when ingested. Cyanide turns blood red where Fe+3 is added, and Iodine turns black or blue where starch is added.

In our experiment, we had to test 3 different substances and identify which one had one of the 6 poisons. Our results are In the following table.

Poison Analysis Chart

Poison
Possible Poison Test #
Results
Sugar
Indication:
Once test reagent is added, purple color will form

1
2
3
·        Blue
·        Blue
·        Blue
Household Ammonia
Indication:
Odor
Ph above 7
PHTH in the solution will be pink purple

1
2
3
·        Strong odor, Ph=11, pink purple color
·        No odor, Ph=6
·        No odor, Ph= 6
Aspirin
Indication:
Ph below 7
When BTB is added, the color is yellow

1
2
3
·        Yellow, Ph= 1
·        Green, Ph= 6
·        Green, Ph= 6
Cyanide
Indication:
Ph below 7
Turns blood red where Fe+3 is added


1
2
3
·        Colorless
·        Positive, Red
·        Colorless
Iodine
Indication:
Turns blue or black when starch is added
1
2
3
·        Yellow
·        Pink
·        Blue

2 comments:

  1. I really liked the chart. To me it felt like it tied the application of the research and the research itself together.

    ReplyDelete
  2. Geez that picture for Possible Asprin is HUGE! XD might want to change the size of that. The chart does indeed reflect on the information you stated above.

    ReplyDelete