Friday
December 19, 2014

Homework Help: chemistry

Posted by Smiley on Friday, August 17, 2007 at 3:09pm.

Experiment: Gravimetric Determination of Phosphorus in Fertilizer Samples
1. Can NH4Cl be used as a substitute to precipitate the phosphorus in the sample? Why or why not?
- I think, NH4Cl can be used although I'm not quite sure if Cl- ions have some effects to the precipitation process. Am I right? Can NH4Cl be used for homogeneous precipitation?

I am not familiar with a homogeneous pptn method for the determination of P in fertilizer. The gravimetric method most often used in my experience is the pptn of MgNH4PO4*6H2O but that isn't done homogeneously unless your procedure does that. The NH4Cl in your question might be used to help buffer the solution for solutions that are too acid or too basic do not ppt the desired substance. You may want to clarify your question by posting a summary of the procedure but from what I know about P determinations, I don't think NH4Cl can be used as a substitute to ppt P.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

chemistry - Can NH4Cl be used instead of NH3 to ppt phosphorus from a fertilizer...
chemistry - The phosphorus in a completely dried fertilizer sample weighing 0....
chemistry - Again, from my previous question about gravimetric analysis... Why ...
college - Please explain with complete step by step instructions. #8)One type ...
college Algebra - Please explain with complete step by step instructions. #8)One...
Chemistry Problem - hard :< - Man in the vat problem. Long ago, a workman at ...
chemistry - experiment: Gravimetric determination of moisture in fertilizer ...
Chemistry - Which product is formed by beta emission from phosphorus -32? The ...
Chemistry - Determine the molecular formula of phosphorus. phosphorus gas has a...
Chemistry - What is the balanced equation of gaseous phosphorus pentachloride ...

Search
Members