Acetone is not known as hygroscopic.
No, because when you add acetone to acetone, all you are doing is adding more of the volume of acetone to acetone. You are just changing the amount of acetone, not anything chemically happening.
Hygroscopic substances include cellulose fiber such as ethanol, methanol and diesel fuel. As hydrogen bonding causes pure ethanol to readily absorbs water from the air, ethanol is considered to be hygroscopic.
In crystalline form it's non-hygroscopic, or has only slight hygroscopicity. In powder form it is, yes.
Substances which absorb moisture from atmosphere without dissolving in it are - HYGROSCOPIC substances. They are used as "drying agents". ex: CaO, ethyl alcohol, concentrated sulphuric acid.
Compounds that have an affinity for water are known as hygroscopic. If the affinity is strong enough to attract water until the compound goes into solution, they are called deliquescent.
Non-Hygroscopic
The hair of the tail of horse is hygroscopic material.
Polyol Ester is also hygroscopic
An unknown being weighed is hygroscopic.
Hygroscopic substances are used to absorb humidity.
Potassium hydroxide is hygroscopic and deliquescent.
As far as I know, the PVC is not hygroscopic, it doesn't absorb the moisture. There are several types of PVC though, so there could be some hygroscopic PVC resin, but I haven't encountered it yet. Normally it is dried by hot air driers, which are not suitable for hygroscopic materials, therefore I assume PVC is not hygroscopic...
No.
yes.
those compounds which have ability to absorb water from its surroundings are known as hygroscopic compounds
No, because when you add acetone to acetone, all you are doing is adding more of the volume of acetone to acetone. You are just changing the amount of acetone, not anything chemically happening.
Yes, mainly there are 3 types of acetone: regular acetone, acetone with enriched formula, maximum strength acetone.