[Shade3]

This is probably a stupid question but does Liquid Ammonia and Ammonia have the same formula (NH3)?

[Borek]

You are right twice

Unless you are asked to give state of matter, then formula will be identical, but you will have to add (aq) or (g) to mark the difference.

[ARGOS++]

Dear Mr. Borek;

Why you exclude NH_3(liq.) ?

Good Luck!
                    ARGOS⁺⁺

[Borek]

Oops, my mistake, I meant (l), not (aq).

Note it should be written with exactly the same font and fontsize that chemical symbols used in equation. No italics, no subscripts. And I believe it should be (l) not (liq).

[ARGOS++]

Dear Mr. Borek;

Now I feel eased; I already thought I would have something missed after all this years.
(I used it only this way to point it out clearly. - Sorry!)

Good Luck!
                    ARGOS⁺⁺

[pzona69]

When you buy household ammonia (I don't know if that's what you meant by liquid ammonia), it's listed as NH₄OH. It's just ammonia dissolved in water. Depends, like I said, on what you mean by liquid ammonia though.

[ARGOS++]

Dear Pzona69;

You’re right! 

But if you now cool  dry NH₃(g) below -33°C, then NH₃(g) will start to condense an build a Liquid, the NH₃(l)  (Bp. -33.3 °C /1.0 atm.).

Such liquid Ammonia is sometimes required for several reactions, and then it’s called “Deep Temperature Chemistry”.

Good Luck!
                    ARGOS⁺⁺

[pzona69]

ARGOS -

Just curious, what types of reactions would use NH₃? The only ones I can think of would require more energy than what I'm guessing liquid ammonia at such low temperatures would have. Unless there was some strong catalyst involved?  All the information I found about ammonia reactions was either on its gaseous state or ammonia solutions.

[AWK]

ARGOS -

Just curious, what types of reactions would use NH₃? The only ones I can think of would require more energy than what I'm guessing liquid ammonia at such low temperatures would have. Unless there was some strong catalyst involved?  All the information I found about ammonia reactions was either on its gaseous state or ammonia solutions.

Liquid ammonia may be  used as a specific solvent. During reduction of organic compounds chemists often use metallic sodium and liquid ammonia. Moreover some compounds are so unstable that they should be synthesize even in lower temperature, eg a liquid nitrogen as cooling medium.

[ARGOS++]

Dear Pzona69;

I build/designed a numerous of “Acetylenes” ( mono-, di-, tree-, …) and related Compounds!

Something like:       ( at -78°C in NH₃(l):   “Dry Ice in Ethanol or Acetone”)
     R₁-(C ≡ C)_n–R₂      with:   n = 1 … ~6;    R₁, R₂: -H, -D, -CH₃, -CD₃, -Hal, etc.
                                                                        (- and mixed)

You always start with dry NH₃(l) and “Liquid Electrons”, a very nice blue Color.

But there are a lot of other similar reactions too.


Good Luck!
                    ARGOS⁺⁺

[pzona69]

AWK-

From what you said, it sounds like liquid ammonia is more useful for its low boiling point than its actual chemical properties?

[Arkcon]

Not true, liquid ammonia is very useful for a number of organic and inorganic chemical reactions, where you need a polar solvent that isn't water.