[hamil]

I bought and used a soil testing kit where pellets of unknown chemical were disolved in a water solution taken from a soil sample. The resulting color matching gives information as to whether the soil is deficient in nitrogen, potassium, and phosphorous. I suspect the color indicates the amount of the nitrogen, potassium,or phosphorus ion.

Can someone tell me where I can get information as to what the chemical interaction is and what is the chemical in the pellets.

Thanks

[thelastone]

Good morning,

You should always consult the safety data sheet. There you will find always the components.

I know that this site aims to avoid easy answers, and make the user search for itself, but for example this kit https://www.enasco.com/product/C14572N , has this safety data sheets: https://www.enasco.com/pdfs/msds/3753a.pdf

Haven't seen the nitrogen extraction compounds, but I seem to recall that you could extract nitrogen with HCl.