Identity the plastic. Provide a BRIEF rationale. Appears to have once been a con

Question

Identity the plastic. Provide a BRIEF rationale. Appears to have once been a container of some type of Cloudy in appearance Burns with white smoke, smelling somewhat of condole wax Negative Brillstein test Not affected by contact with acetone Floats in water Creases with little or no damage Has a melting point of about 110 degree C Curved small piece of a larger item: no other visual clue of its origin Clear in appearance Burns with black smoke Negative Brillstein test Surface is clouded on contact with acetone Sinks in water Creases with little or no damage Too small a piece to determine melting point Thin flat piece which may have been part of a box Opaque black in appearance Burns with black smoke Negative Brillstein test Surface is damaged on contact with acetone Sinks in water White line forms when bent eventually breaks; brittle Has a melting point of about 240 degree C, but starts to decompose before that

Explanation / Answer

The first plastic is polyethylene .it is used as an packaging material due to its low cost

Second plastic must be polysulfones, since it is clear, can be given a variety of shapes due to toughness and gives negative beilstein test due to absence of halide.

Third plastic must be polystyrene. As it has melting point of 240° and is brittle. Generally used to make cd covers, cutlery etc. It is not biodegradable so produces litter and burns with dense black soot.

Related Questions

Navigate

• Browse (All)
• Browse I
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.