Cleaning glassware: Dichromic acid glass cleaner waste - I use concentrated sulfuric acid and sodium dichromate in the glass cleaner I make.

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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.
Sulfur disposal: Could you please advise on the procedure for disposing of sulfur, specifically sulfur mixed with iron filings and HCl.
Mercury Spills: We have a small amount of mercury in a thick-walled test tube, which only comes out once a year and is handled by the teacher. I do not have a spill kit for this.
This interactive simulation looks at the Earth's rock cycle.
Chemical Storage: What type of extractor fan should we have to ventilate our chemical storage cupboard?
This online resource explores Australia's mineral wealth.
Sulfur hexafluoride: I require information on availability, safety, cost and suppliers of sulfur hexafluride.
This online resource is a source of science-related images.
Supply of large calcium carbonate marble chips: I have been asked to purchase large calcium carbonate marble chips, as the chem supply ones are the wrong size. any suggestions??