Mac X-code Lab - AntoinetteOne 凡爾賽玫瑰

At page 20, 2/3 of human body is Water.  1/3 of those water is called " Extracellular Fluids", and 2/3 of those water is called " Intracellular Fluids". That's inside or outside of cellular. 

Extracellular fluids has Na+ and K+....etc. For example, Na+ is 0.85%, our kidney will adjust Na+ within +-0.05. Just likes semiductor fab, what we are doing is making our solutions and solvent within a very tiny range at the temperature. For example, 6:1 BOE at 22+-0.5C, the etch rate(for Thermal Oxide)  will keep at 1200A+-100A/min. ( Hope my memory is correct). 

When I was Etch process engineer in Holtek fab ( merged by UMC), what we did to clean equipments were " flush" and " purge". For chemical stations ( H2SO4+H2O2, Hot H3PO4, BOE.....etc), using D.I. water to do QDR( Quick Dump Rinse) and clean pipelines or tubes. A lot of water is must. After PM (Preventive Maintainese), we measured water resistivity. Higher is better. When pass the spec ( specification), the chemical station will key to " Operation". 

So, how we treat our body, do we drink a lot of water to clean our boby? it is a very interesting question. 

水是個奇妙的東西, 在不同氣壓 , 不同溫度之下, 會有氣相(gas) 液相 (liquid) 固相 (solid) , 且有 doping 的情形下, 其 固到液的溶點會不同, 如食鹽水的溶點會與純水不同. 在 液面壓力不同的情形下, f.p. and b.p. are different. For example, 在1 atm時，水的凝固點(f.p.)為0C，沸點(b.p.)為100℃。But, pressure wok, the pressure will higher than 1 atm, the f.p. is higher. And, 水在4℃(精確值為3.98℃)時的體積最小、密度最大，D = 1g/mL

水是如何在體內運行的?