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amidol

[am-i-dawl, -dol]

am·i·dol

[am-i-dawl, -dol]
noun Chemistry.
a colorless, crystalline powder, C6H8N2O⋅2HCl, derived from phenol, used chiefly as a photographic developer.

Origin:
1890–95; amid- + -ol1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Amidol is always a great word to know.
So is heterogeneous. Does it mean:
a mixture composed of different substances or the same substance in different phases, such as solid ice and liquid water
with all water removed, especially water of crystallization
Collins
World English Dictionary
Amidol (ˈæmɪdɒl)
 
n
trademark a grey to colourless soluble crystalline solid that is used as a photographic developer; 2,4-diaminophenol dihydrochloride. Formula: C6H3(NH2)2(OH).2HCl

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