[nikhil108]

hi friends,

i need your help in  chemical reaction,making boron trichloride but one very toxic byproduct gas is created hence

want to take all precautions

When Arsenic trichloride is reacted with Sodium Borohydride it is reduced to Arsine gas and Boron trichloride.

my question is,

1.Does any catalyst needed for this reacion?

2.Does this reduction do not need heating?

3.Arsenic Trichloride is liquid at RM,is this reaction is spontaneous?

I searched many books but havent found answers to abo

[Arkcon]

I really don't understand this question.  There's an awful lot of "Huh?" in this question, and I'm going to share it with everybody here.

hi friends,

i need your help in  chemical reaction,making boron trichloride

OK, you need boron trichloride, a rather hazardous reagent itself, for some reason.  I would suggest a chemist order it from Sigma Aldrich, or other chemical wholesaler.  So maybe someone wants to make it themselves, a little strange, but fine, I'll play along.  The typical production method for both heavy industry and for laboratory synthesis is given on Wikipedia right here: http://en.wikipedia.org/wiki/Boron_trichloride#Production_and_properties

but one very toxic byproduct gas is created hence

want to take all precautions

A very noble sentiment, highly commendable.  I salute you.

When Arsenic trichloride is reacted with Sodium Borohydride it is reduced to Arsine gas and Boron trichloride.

Oh ... kay.  I didn't see that one on Wikipedia.  Also, yikes for your choice of reagent given the toxic byproduct.  I would hope the laboratory fume hood could handle this.

my question is,

Oh, good.  Questions.  We like to help.

1.Does any catalyst needed for this reacion?

I don't know.  Don't you?  How did you find out about this reaction without that piece of information?

2.Does this reduction do not need heating?

Again, your reference for this reaction should have this information too.

3.Arsenic Trichloride is liquid at RM,is this reaction is spontaneous?

OK, you've looked up the physical properties.  But, basic chemistry tells us that reaction spontaneity has nothing to do with the physical state of the reactants.  How do you not know this, yet consider yourself able to handle something that reacts violently with moisture?

I searched many books but havent found answers to abo

Search harder.  Everybody.  Everyone with a basic chemistry text, a mason jar and a Bunsen burner in the garage who wants to make organic synthesis precursors.  Get some more text books and read instead of random mixing.  Please.

[AndersHoveland]

There are much better methods to prepare boron tribromide. Try to obtain some elemental boron. Elemental bromine is not difficult to prepare either.

[n30031986]

thanks all u very much for help