The preservative of choice in this poisoning:
The most commonly used preservative for viscera is saturated solution of common salt (NaCl) because It is easily available, cheap and effective preservative. However, the best preservative for preservation of viscera is rectified spirit. z In cases of suspected alkali or acid poisoning (except carbolic acid), only rectified spirit is used.
Rectified spirit
Saturated solution of sodium chloride
Formalin
Sodium flouride
Toxicology - 3