View source for Cyanide gas bubbler

{{Stub}}
[[File:Cyanide distillation bubbler.jpg|thumb|350px|A cyanide gas bubbler/collector.]]
A '''cyanide gas bubbler''' or '''cyanide gas collector''' is a piece of glassware used in analytical chemistry to collect various gaseous products from samples, more specifically hydrogen cyanide gas obtained by chemically digesting wastewater samples.

==General==
Cyanide gas collectors consist of a quasi-tubular glass tube, with two female ground glass joints at one end, and a PTFE [[stopcock]] at the other. Inside the glass tube, there is a smaller thinner tube with a rounded end, with 4-5 holes, through where the gaseous products are forced by the distillation gas pressure. The outer glass tube holds a diluted [[Sodium hydroxide|NaOH]] solution, which captures the gaseous HCN.

==Availability==
Lab suppliers sell this item.

==DIY cyanide gas bubbler==
A smaller gas washing bottle can be used instead, though the resulting solution will be more diluted.

==Maintenance==
Make sure the stopcock doesn't freeze and that the holes in the bubbler don't get clogged.

==See also==
*[[Gas bubbler]]
*[[Gas washing bottle]]

==References==
<references/>
===Relevant Sciencemadness threads===

[[Category:Lab equipment]]
[[Category:Glassware]]