11. More valuable commercially, hard blocks of black natron were exported to Nigeria. 12. It is hypersaline, warm Lake Natron in Tanzania. 13. They, too, were covered with natron . 14. Sure enough, when they cleared away the natron , the body had dried. 15. All the bodies were first treated with a natural salt mixture known as natron . 16. The corpse was left under the natron in a closed room for 35 days. 17. Lower concentration of natron would have allowed the glass to be stiffer for blowing. 18. In the 1960s, the Mining industry of Chad produced sodium carbonate, or natron . 19. The body was then placed in natron for seventy days and returned to the family. 20. Natrona County was named for the deposits of natron that are found in the area.
