\" Plant bottles\" cannot be used for water density test for plastic type 1 why
ID: 1039172 • Letter: #
Question
" Plant bottles" cannot be used for water density test for plastic type 1 why not? What is in it?
Explanation / Answer
Polyethylene terephthalate, also known as PETE or PET. Usually clear in color, the vast majority of disposable disposable beverage and food containers and bottles are made of #1 plastic. This plastic is relatively safe, but it is important to keep it out of the heat or it could cause carcinogens (like the flame retardant antimony trioxide) to leach into your liquids.PETE-based containers sometimes absorb odors and flavors from foods and drinks that are stored inside of them.
If the specific gravity of plastic is less than that of water, a sinker is used to immerse the plastic specimen. PET has more specific gravity. Therefore plant bottles cannot be used for water density test for plastic type 1. Another method uses a liquid other than water as immersion liquid. So the plastic materials that are lighter than water and affected by water are generally studied for its specific gravity and density measurements using this test method. The selection of liquid is such that the sample should not be dissolved, swelled or otherwise affected by the liquid and the specific gravity of the liquid should be less than that of the sample. In addition, the immersion liquid should have a low vapour pressure and be nonhygroscopic. In order to carry out experiments of specific gravity and density measurements of plastics, xylene was used as the immersion liquid.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.