Sugar is hygroscopic, which means it draws moisture or water to itself. In addition to its sweetening properties, then, sugar helps make cookies tender and soft. Beyond this, sugar absorbs heat, which helps cookies to brown.
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...
Non-Hygroscopic
The hair of the tail of horse is hygroscopic material.
Polyol Ester is also hygroscopic
Hygroscopic substances are used to absorb humidity.
Potassium hydroxide is hygroscopic and deliquescent.
the amount of cookies that have chocolate in them are about 15% as far as i know
No.
Acetone is not known as hygroscopic.
yes.
Ask everyone.
Sodium chloride has a rare dihydrate, obtained from cold solutions - NaCl.2H2O.