Use of Liquid Nitrogen: Are there any restrictions to using liquid nitrogen in school laboratories? If appropriate storage is sourced and safety procedures are followed, can teachers perform liqui
What's the equation you use to make a solution from a solid? For example, I have copper sulfate in a solid powder but need it as a solution.
Chemical Register information & SDS printing query: Hi, Is there a standardized format for what information must be included in a Chemical Register for Emergency Services?
Chemical Safety: Hello. I would just like to ask what chemicals can be stored safely together.
In a chemical storeroom, as in which classes can be put together. Thank you.
Effective enzymes pH: Could I have some info on how I do the ph for the jelly for the pineapple prac please—Exploring Human Biological Science Stage 2 Body Works Activity 27 Page 176.
Zinc Nitrate: Hi, My bottle of zinc nitrate has liquid in it and the bottle has expanded. It does not look right.
Laboratory ventilation: What are the standards for laboratory ventilation?
Calcium oxide disposal: Hi. Can anyone tell me how to dispose of some very old calcium oxide. The container is all swollen and the date on the bottle is Dec 1988.
Cremated skeleton: I would like to know if anyone has had to dispose of a cremated skeleton from a school. The one here has been here for 8 years approx.
Litmus Paper: The Litmus paper in our lab is many years old, but has been kept dry in a dark drawer.