[nimbus8]

I used a grocery store brand soap after my last experiment, and im wondering if it will affect the purity of future experiments. Like could there possibly be some chemicals left over from the soap that aren't water soluble, and is there a general procedure i should through to remove them like a base wash then an acid wash? Also is diluted ammonia a suitable solution to wash chemistry glassware in? I tried sodium bicarbonate for a base wash last time and it did something weird to my glassware joints.

Thanks in advance for the responses and the responses to my previous threads.

[Dan]

Should be fine. In out lab we normally wash with water/detergent followed by an acetone rinse. Normally this is sufficient. If not, acid/base washing is used - we soak the glassware in base (isopropanol/KOH) for a couple of days and then in acid (10% HCl(aq)) for a couple of days.

[orgopete]

Ditto Dan's method.

[nimbus8]

Alright thank you, after you do a base wash do you glas joints feel grainy? Because mine were grainy as crap after they sat in sodium bicarbonate.

[OC pro]

For removal of black tar impurities I always used dilute HF. But this is only for the experienced guys.