A thin partition between two solutions through which certain molecules can pass but others cannot.
Latest Articles
-
Creating Malachite egg
One of the most interesting and obvious chemical experiments is the experiment on the interaction of copper sulfate and calcium carbonate. The latter is contained in the shell of a simple egg, but copper sulphate should be searched in a chemical reagent store. This experience is simple, but...
-
Diamonds Are Forever
Diamonds are still a girl's best friend, right? We love the shiny gems. They are the most popular rocks sold today. But what exactly are they, anyway? Where do they come from? What else are they used for?
-
Gas of rotten eggs
If you happen to break a rotten egg, then you know the smell of hydrogen sulfide, because the stench of the spoiled egg depends on of its presence in rotting protein substances.
-
Chemistry of the sky
Chemistry can teach us about the composition of celestial bodies and determine their age.
-
Protein Design: Automated protein discovery and synthesis
In this paper I describe (theoretically) the method(s) of automated protein discovery and synthesis.
Most Popular
Surface Tension
It is the force in dynes acting along the surface of the liquid 1cm in length and perpendicular to it.
Eluate
Solvent (or mobile phase) which passes through a chromatographic column and removes the sample components from the stationary phase.
Secondary Voltaic Cells
Voltaic cells that can be recharged, original reactanats can be regenerated be reversing the direction of the current flow.
Dipole
Refers to the separation of charge between two covalently bonded atoms.
Specific Rate Constant
An experimentally determined (proportionality) constant, which is different for different reactions and which changes only with temperature, k in the rate-law expression: Rate = k [A] x [B]v.
yttria
Y2O3: A white, water-insoluble powder, Y2O3, used chiefly in incandescent gas and acetylene mantles.
Atmosphere
A unit of pressure, the pressure that will support a column of mercury 760 mm high at 0 °C.
Radical
An atom or group of atoms that contains one or more unpaired electrons (usually very reactive species)
Single Bond
Covalent bond resulting from the sharing of two electrons (one pair) between two atoms.
Polydentate
Refers to ligands with more than one donor atom.
