Hey everyone. I really only joined this forum for one, well, two reasons. Firstly, Id like to ask for help and ideas with a project im working on. It's an application that can solve equations and do conversions. (not like an ordinary calculator, though) It also can do a number of other things.. ..has a periodic table, a standard calculator, a journal, etc. My second reason was to show off what I have a little bit. Just a little, though. :]

What is duplet rule?

1. Why does sulphuric acid behve differently from phosphoric acid in its reactions with sodium bromide and sodium iodide, but not in its reaction with sodium chloride?
2. What do the raection between concentrated sulphuric acid and the sodium halides suggest about the relative ease of oxidation of the hydrogen halides.
3. What property of hydrogen chloride makes it possible to prepare this gas by the action of one acid on the salt of another?
4. What common use is usually made of the reaction between silver nitrate and the halide ions in aqueous solution?

Need a less expensive substitute for potassium chloride.
Focus is on ion exchange properties.
Presently using KCI to stabilize expansive clay soils in the construction business at depths of up to 15 feet.

Chromium is a constituent of several green, yellow, orange and red pigments; its name (from the Greek chroma or "color") refers to the color span of its compounds noted when it was discovered in the mineral ore crocoite by Nicolas-Louis Vauquelin in 1797.

A member of the lanthanide, or rare earth, series of elements, holmium is a gray, somewhat shiny, soft metal. It is usually found in minerals containing several of the lanthanides. Because the rare earths all have the same outer electron shell configuration (6s2), their chemical properties are very similar, making it difficult to separate them from one another in the minerals in which they are usually complexed. They are best separated via repeated ion-exchange purification, a process developed in the United States during the 1940s.

When chlorine gas is bubbled through a cylinder of tomato juice, the chlorine/tomato juice mixture turns almost completely white within five minutes. This spectacular change is a result of the chemical action of chlorine, acting as an oxidizing bleaching agent, on the pigments in tomato juice.

The trademark Freon refers to any of several gaseous chlorofluorocarbons, CFCs, with the general formula CFxCl4−x or C2FxCl6−x. Due to their physical and chemical properties, these
CFCs became the compounds of choice as propellants and refrigerants,

The noble gases, also known as rare or inert gases, form Group 18 of the Periodic Table, embedded between the alkali metals and the halogens. The elements helium, neon, argon, krypton, xenon, and radon are the members of this group.

Discovery

I have tons of anodising sludge and similar quantities of aluminium hydroxide sludge generated by neutralising caustic rinses with dilute sulphuric acid.Can anybody find a solution for putting this to valuable use??
presently I am making alum from anodisng sludge,but is there anything else we can do with this???