Showing posts from 2016

Make Concentrated Sulfuric from Battery Acid

Hello everybody. Now we are going to make concentrated sulfuric acid from battery acid. Also you can use other types of sulfuric acid. However concentrated sulfuric acid is extremely dangerous. So you must be careful when working with it.
                                   In this experiment I used battery acid. It has 29% to 32% of sulfuric acid. It means, if we get 50ml of battery acid, there will be 15ml of sulfuric acid (in 30% solution). Sulfuric acid is boiling at 337 0C. (In 300 0C, it will decompose slowly) But water is boiling at 1000C. So we can heat and remove water from solution.

from Wikipedia.comMass fraction
(mol/L)Common name10%1.07~1dilute sulfuric acid29–32%1.25–1.284.2–5battery acid
(used in lead–acid batteries)62–70%1.52–1.609.6–11.5chamber acid
fertilizer acid78–80%1.70–1.7313.5–14tower acid
Glover acid98%1.84~18concentrated sulfuric acid

            I used 50ml of 30% solution. In concentrated sulfuric solution it has 98% of sulfuric …

Bi-color LED bulb

Hello everybody! I made my white color LED bulb into a bi-color LED bulb. To see how I made it, click the link bellow.

Salt Crystals

Hi everybody. Since last month I tried make a large salt crystal. But I couldn't. However I could make small salt crystals.