Search results

Silicon dioxide is normally referred to as silica. This is the principal component of sand and many soils and bedrock. It is essentially inert so I assume it is just a filler to bulk it up (easier to manage the dose with larger volumes). The propylene glycol will just be a solvent. It is just...

The antifreeze in your car is ethylene glycol, NOT propylene glycol.

I have a complete set of the Narex mortise chisels in the dark finish. I have hardly used them and some are unused. If you are interested in buying them, PM me.

It is true wind and solar are cheaper but that is only true if it is windy and sunny. It costs around £500M to build a 1MW gas power station but about £3,000 M (£3B) to make 1MW of wind turbines. The wind turbines last about 20 years and a gas turbine last nearly 40 years. When a wind turbine...

Silicon carbide is harder than aluminium oxide. It has a Mohr hardness of 9.5 versus 9.0.

Dropping out the ethanol will reduce the octane number a little. Pure ethanol is 100 ON but behaves more like 109 ON when dissolved in petrol so 10% ethanol is about 15 ON higher than E10 petrol but only contributes 10% so it will be about 1.5 ON lower. It isn't linear so it won't be exact but...

E5 and E10 petrol contains 5 and 10% ethanol respectively. Ethanol and water are fully miscible at all concentrations so the introduction of ethanol to petrol makes it hygroscopic (water absorbing) which pre-E5 and E10 were not. So, the more headspace you have in the tank the greater the...

TCE is an abbreviation for trichloroethylene. It is an active solvent in many paint strippers. Ethylene itself is a gas. It is a very strong degreasant so it is very important to wear gloves and eye protection. As it is very volatile and toxic by inhalation ensure you use it in a well...