ammonium chloride

[jeneje]

I have 5lbs of dryed ammonium chioride that has not been opened, it is 4 to 5 years old - will it still be good to use. Second i am making up some testing solutions, should i make a solution of ammonium chioride for any tests.
Thanks
Ken

 

[butcher]

I do not Know if your ammonium chloride is still good or not, some chemicals like food can have an expected shelf life, but like a can of beans one can will spoil after a few years and the other can (canned at the same time) may not have spoiled and would be good to eat.

Here are a few interesting things to read.
http://chemistry.slss.ie/resources/downloads/ch_sd_shelflife.pdf
http://sta.uwi.edu/hse/lab%20safety%20check%20list.doc
http://www.lbl.gov/ehs/chsp/html/storage.shtml

 

[jeneje]

I do not Know if your ammonium chloride is still good or not, some chemicals like food can have an expected shelf life, but like a can of beans one can will spoil after a few years and the other can (canned at the same time) may not have spoiled and would be good to eat.

Here are a few interesting things to read.
http://chemistry.slss.ie/resources/downloads/ch_sd_shelflife.pdf
http://sta.uwi.edu/hse/lab%20safety%20check%20list.doc
http://www.lbl.gov/ehs/chsp/html/storage.shtml

Thanks for the reply, those are some good links to have.
Ken

 

[lazersteve]

Jenje,

If the ammonium chloride has been kept sealed and away from basic conditions (ph>7) it should be fine.

Have you seen my post on treated and untreated ammonium chloride?

Types of NH4Cl

Steve

 

[jeneje]

Jenje,

If the ammonium chloride has been kept sealed and away from basic conditions (ph>7) it should be fine.

Have you seen my post on treated and untreated ammonium chloride?

Types of NH4Cl

Steve

Thanks Steve i will test it in the morning to see if it forms up.
Ken
ps. did you get my pm on the pd

 

[lazersteve]

Yes, I replied this morning, sorry for the delays I've been stuck in the lab.

Steve

 

[jeneje]

Yes, I replied this morning, sorry for the delays I've been stuck in the lab.

Steve

Thanks Steve, also the ammonium chloride is pureified
Ken