Organic chemistry: Could someone please advise about the safe storage and disposal of esters.

Organic chemistry: Could someone please advise about the safe storage and disposal of esters.
Cleaning glassware: Dichromic acid glass cleaner waste - I use concentrated sulfuric acid and sodium dichromate in the glass cleaner I make.
Information for the use of lasers in schools.
This set of downloadable documents detail standard operating procedures for the use of lasers in schools.
Making Sherbet: Can you tell me if any safety precautions are required for the sherbet activity, which allows students to create an acid–base reaction in their mouth?
Dissecting cane toads in WA: Could you please advise on the status of importing cane toads into WA as preserved specimens.
Chemical Storage: What type of extractor fan should we have to ventilate our chemical storage cupboard?
Making Nylon: It has now been 14 years since I was i
Sulfur hexafluoride: I require information on availability, safety, cost and suppliers of sulfur hexafluride.
This online resource is a source of science-related images.