The provisions of this chapter relating to state monopoly shall not apply to ethyl alcohol used:

1. (1) For scientific, chemical, mechanical or industrial purposes;
2. (2) By those authorized to procure ethyl alcohol tax free under the acts of Congress and regulations thereunder;
3. (3) In the manufacture of denatured alcohol produced and used as provided by the acts of Congress and regulations thereunder;
4. (4) In the manufacture of scientific, chemical, mechanical and industrial preparations or products unfit for beverage purposes;

5. (5) By those authorized to manufacture ethyl alcohol for use in the production of gasohol for personal use pursuant to section seven-a, article four of this chapter.

   Nothing in this section shall be so construed as to exempt such users of ethyl alcohol from the license and transportation provisions of this chapter.