adsorbate vs adsorbable

adsorbate is a noun but adsorbable is not a noun.

Word	Noun	Adjective	Verb	Adverb
adsorbate	Yes	Yes	No	No
adsorbable	No	Yes	No	No

As adjectives, adsorbate and adsorbable are synonyms defined as:

adsorbate and adsorbable: capable of being adsorbed or accumulated on a surface of a solid

adsorbate (noun)	adsorbable (noun)
a material that has been or is capable of being adsorbed

adsorbate (adjective)	adsorbable (adjective)
capable of being adsorbed or accumulated on a surface of a solid	capable of being adsorbed or accumulated on a surface of a solid