The Chemistry of Clothes Washing #2:
We’ve had a look at some general principles. Now let’s dig into it a bit. Today we’ll look at the …
Dr Chemical Posts
Cyclone?
There was no blog posting yesterday as we lost power. Back on today I think. Quick question though – why …
The Chemistry of Clothes Washing #1
I don’t watch a lot of TV, but from what little I do watch it seems that we no longer …
Why Does Ice Expand as it Freezes?
Ice expands as it freezes. We’ve all seen what happens to milk after we put it in the freezer – …
What’s the Safest Place in an Electrical Storm?
That storm yesterday was pretty speccy. Lightning and thunder everywhere. So where’s the safest spot to be in an electrical …
Washing Dishes Without Detergent.
Incredible but true! in fact it works so well that you don’t even need to use a scourer. Here’s how …
Cleaning Gravestones
Reader Barry asks how to clean the family gravestone: It’s a bit hard to tell what the discolouration is but …
Carbohydrates and Sulphuric Acid (or How to Dehydrate Carbohydrates)
One of the more spectacular chemical demonstrations getting around is sulphuric added to sugar. What on earth happened? Suddenly out …
Read moreCarbohydrates and Sulphuric Acid (or How to Dehydrate Carbohydrates)
Why Does Sugar Cause Tooth Decay ?
Sugar is not corrosive, in any sense of the term, so how does it causwe decay in our teeth? Well …