Symbol 39:30
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39:30 ·
A sign for salt alkali used in early chemistry or late alchemy. Salt was also
drawn 
and 
.
One salt alkali was the common table salt, or sodium chloride. Like "elixir",
"alchemy", and "algebra", the word alkali is of
Arabian origin. The alcali metals were sodium and potassium.
For other signs for salt, see 
in Group 41:b.