Here's another suggestion

PSWH - Pressure Switch
It should be blue (we have green, yellow and red, so why not?)
Element Properties: Produces pressure when switched on. (use the silicons) Basically E-White Hole.

jamesoleruster:
Pressure is too inexact for this to really be useful, I think. Other than that, I think the element would be white/light grey, representing what it is (WHOL that can be toggled).

By the way, VINE breaks quite a bit of stuff. I'm fairly certain the ACID change would break less....

Well, there goes that idea.
Here's another one:

HICE - Hot Ice. Melts at 200C into Sodium Acetate.
White-ish
Element properties: Hot ice! Hot Ice does melt, you know. We will need Sodium Acetate, if it's gonna melt.

SDAC - Sodium Acetate. Freezes at 200C
White-ish liquid.
Element Properties: See Hot Ice. Does not conduct electricity.

Another one:

DSWR - Distilled Salt Water.
Darker color than Salt water
Element properties - Salt Water that doesn't conduct electricity

And another one

CDOX - Carbon Dioxide. Traps in heat. Freezes at moderately cold temperatures.
Green, cause' its a green-house gas.
Element Properties - Plant breathes this. Traps in heat.

Yet another one
CGAS - Conductive gas. Flammable.
Orange.
Element properties: Self explanatory. Same properties as gas.

Still more...

AGAS - Acid Gas
Purple-ish
Element properties - Like steam, but acid. Kinda like a virus. What you get when you heat acid to over 100C

Some more

SLIM - Slime, moves slowly. Burns slowly.
Green
Element Properties - Slow moving liquid that doesn't conduct electricity. Gets runnier (for lack of better word) when heated. Acts like water at 1000C and becomes GOO at 0C

The Last one

CWTR - Carbonated Water, soda like. Difficult to freeze.
Cyan-ish
Element Properties - Like Gas that falls down.

I hope these are good elements!

Why grids?

<Offtopic> did anyone even bother to look at my post above? </Offtopic?