Recent content by Mercaptan

No problems. Some of the old instruments like that are quite powerful, it's sad you can't use it anymore.

Bad luck! I found heaps on my old Leco and furnace. Try Tech Trader http://www.techtrader.com.au and LabX http://www.labx.com/

Good luck to you. I have an ancient AAS spectrometer with Win95 I'm trying to get up and running. If it came with original discs, you may be able to track down on ebay/similar sites if you have the model and serial no. I found a few vintage/old lab equipment sites when looking for parts/manuals...

No worries thankz...let me know if you have any more questions.

Red bricks have an iron (II) oxide added. Same reason why you can get brown and yellow etc. Different metal oxide combinations, if you look in the old books on building and painting (I have one from 1951) they tell you what pigments give you what colours, and back then you bought iron (II) oxide...

Thanks Quantum Defect. I have a few old chemistry books here handed down from the old metallurgist and other chemists if I can't find them online.

Good idea.

They did leave me the units of the constants, J/molK. Thanks for the actual heat capacity equation, I haven't done integration for years so I was going to wait until I got home and got the old textbook out.

Thanks Quantum Defect. Coming from an analytical chem and Earth science background, my maths knowledge is very limited. Excuse the ignorance, what is CpdT? A derivative of Cp wrt temperature?

I've figured out the equation in which they are used in. This appears a number of times in the model, and often as sums, but the base of it is this: A(T- Tref) + (B/2000)( T2- T2) – 100000C(1/T - 1/Tref) + D-6/3(T3- Tref3) Where T is any temperature (in one example it's the temperature of the...

Hi all, I'm a chemist/geologist in the mining industry in Australia, currently trying to get my head around metallurgy. Happy to help with analytical chem and any physics/maths questions relating to the Earth sciences and mining, and hopefully some of you will be able to help me!

Thanks Chet, I'll give it a go and get back to you.

Hi all, I've joined this forum as a last resort seeing no one else here knows (well, before maybe joining other forums?). I've been handed an old model of the iron ore plant I work at which was made in the 90s in excel (the model was made then, not the plant!). The metallurgist at the time was...