Jars made of high-density cross-linked polyethylene. Safer than glass because they are flexible. Sturdy containers, no weld joints, high resistance to stress cracking. Ideal for soaking glassware and for cleaning pipettes using Nalgene™ rinsers and pipette baskets. Extra wide base for increased stability, dust cover included. If a sulfuric acid - dichromate solution is used to clean pipettes, the acid concentration must not exceed 60%. Use the formula printed on the label results for a solution that give good results and is longer-lasting the conventional solutions. Only use the jar on a draining surface, in a wash basin or a container that is large enough to hold the contents of the jar in case of spillage.

Caution: never mix acid solutions in the jar. Use cleaning solutions other than chromosulfuric acids to protect the environment.