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What is sludge? Well sludge can be anything really from plastics to chemicals that could be toxic and has a mix of solids and liquids that you will have to separate.

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You will need a thermometer, beaker,  graduated cylinder, test tube, Bunson burner, look at this video on how to do it although says Micro melting point it is BP

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Figuring out density of solid and liquid   

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Figuring out density of solid and liquid   

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You can find the density of solids by finding the volume of an irregular object in liquid or measuring L * W * H=V then place the object on a balance and do the equation M/V=D

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To find out the volume of an object or liquid look at this example

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To find out the volume of an object or liquid look at this example

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Pour at least two to one drop of acid and make sure to use goggles look for bubbles

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1. Tincture
2. acid test
3. Micro melting point(click video to see how to do it again)
4.if soluble or not soluble formula g/100

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1.Don't let bubbles peak over the middle of the test tube
2. record 3 plateaus by a 10 C difference for each if not then they are the same also do not go over 105 C
3.switch three test tubes and keep the first and last and 4 boiling chips

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Everything on this list has intrinsic properties and is identified by them

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1.Hdpe
2. pvc
3.Ldpe
4.Ps
5.Pp
Using paper from the plastics lab you can identify them using the copper wire test from a green flame and orange flame watch this video about plastic testing and play it at 2:10 for the flame test

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How to Identify Any Type of Plastic | Orange Plastics Academy

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1. separate them from sludge
2.Use density, volume, and mass to identify the properties
3.Magnetism to help find properties and acid test for bubbles or no bubbles