Re: chloride analysis

Why do you want to do this? You'd need a stabilising colloid - try gelatin.
The obvious snag is that AgCl is photochemically unstable so you'll get
changing results as the spectrophotometer converts it to Ag.

If you get a visible precipitate you should be able to titrate the chloride

Don Wilkins <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
> On Mon, 17 Nov 2003 09:16:36 +0300, "pasky" <[EMAIL PROTECTED]>
> wrote:
>
> >,;hi,
> >,;
> >,;has anyone ever use silver nitrate to precipitate chloride in
determining
> >,;chloride concentration using spectrophotometer?
>
> Yes.
> >,;
> >,;What are the things to watch out for? Is it acceptable to be used in
low
> >,;range analysis, in ppb level?
>
> From P.V. Wells, Chem. Revs. 3, 331 (1927)
>
> "Every attack on the problem of disperse systems is disappointing
> because of the baffling complexity of the phenomena."
>
> The methods are usually referred to as "Turbidimetry" & "Nephelometry"
>