 | Elroy McKendree Avery - 1882 - 384 σελίδες
...and pour the solution into a long test tube filled with 0. Add a few flakes of pyrogallic acid. Close the mouth of the tube with the thumb and shake the contents. The liquid will be blackened. Place the mouth of the tube under water and remove the thumb. Water will... | |
 | Elroy McKendree Avery - 1883 - 452 σελίδες
...and pour the solution into a long test tube filled with O. Add a few flakes of pyrogallic acid. Close the mouth of the tube with the thumb and shake the contents. The liquid will be blackened. Place the mouth of the tube under water and remove tho thumb. Water wiL... | |
 | Elroy McKendree Avery - 1904 - 446 σελίδες
...pour the solution into a long test-tube filled with oxygen. Add a few flakes of pyrogallic acid. Close the mouth of the tube with the thumb and shake the contents. The liquid will be blackened. Place the mouth of the tube under water and remove the thumb. Water will... | |
 | William McPherson, William Edwards Henderson - 1906 - 168 σελίδες
...3 cc. of carbon disulphide (keep away from flame) over a little powdered brimstone in a test tube. Cover the mouth of the tube with the thumb and shake the contents gently until the sulphur is dissolved. Pour the clear solution into an evaporating dish, cover it loosely with a filter... | |
 | William McPherson - 1915 - 156 σελίδες
...disulfide away from flame and do not inhale the vapor) over 3 g. of [43] powdered brimstone in a test tube. Cover the mouth of the tube with the thumb and shake...the contents gently until the sulfur is dissolved, adding more carbon disulfide if necessary. Pour the clear solution into a small beaker, cover it loosely... | |
 | William McPherson, William Edwards Henderson - 1919 - 168 σελίδες
...disulfide away from flame and do not inhale the vapor) over 3 g. of powdered brimstone in a test tube. Cover the mouth of the tube with the thumb and shake...the contents gently until the sulfur is dissolved, adding more carbon disulfide if necessary. Pour the clear solution into a small beaker, cover it b.... | |
 | William McPherson, William Edwards Henderson - 1922 - 200 σελίδες
...powdered brimstone in a test tube. (Keep carbon disulfide away from flame and do not inhale the vapor.) Cover the mouth of the tube with the thumb and shake...the contents gently until the sulfur is dissolved, adding more carbon disulfide if necessary. Pour the clear solution into a small beaker, cover the beaker... | |
 | Guest - 2008 - 196 σελίδες
[ Λυπούμαστε, το περιεχόμενο αυτής της σελίδας είναι περιορισμένο ] | |
| |
... powdered brimstone in a test tube. Cover the mouth of the tube with the thumb and shake the contents gently until the sulfur is dissolved, adding more carbon disulfide if necessary. Pour the clear solution into a small beaker, cover it loosely with... 