Recent content by Craig Bingman

Trisodium phosphate is a common cleaning agent that is still used widely for surface prep of walls prior to repainting. So that’s where I would start looking for it in the hardware store. There are TSP variants that combine bleach and phosphate (often used to remove mildew stains from walls.)...

Just a few technical points. It’s “Redfield’s ratios.” He was a chemical oceanographer who studied the ratios of numbers of atoms of different elements found in phytoplankton. The 16:1 ratio is a molar ratio or “number of atoms ratio.” I guess people normall measure things as nitrate ion and...

Why is sodium phosphate preferred? Asking for a friend.

Thank you, Josh.

While the lab is coming along, it seems a number of my aquariums have been invaded by carnivorous plants. I'm not unhappy about that.

I'm assembling the newest incarnation of my home lab. This is my new (to me) analytical balance. I'm pretty thrilled to be able to work at this precision at home.