Absorbs moisture from the atmosphere
Acetone is not known as hygroscopic.
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.
The hair of the tail of horse is hygroscopic material.
Non-Hygroscopic
Acetone is not known as hygroscopic.
Polyol Ester is also hygroscopic
Hygroscopic substances are used to absorb humidity.
An unknown being weighed is hygroscopic.
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
Sodium chloride has a rare dihydrate, obtained from cold solutions - NaCl.2H2O.