Ammonium persulfate. The persulfate bit on the right is what matters; the counterion on the left could just as easily be sodium or potassium. Source: [Kemikungen], own work (public domain).

If you’ve ever etched your own PCBs using ammonium persulfate, you’ve experienced the need for both heating and agitation firsthand. Using a stirrer plate for PCB etching is putting two and ...

[37] Bleaches In common with other studies (see Table 6), we noted a high rate of allergy to ammonium persulfate. Allergies to hydrogen peroxide and hydroquinone were much less common ...

[21] Considering that the threshold limit value (TLV)/ short time exposure limit for ammonium persulfate is not known, and that no data are available in the literature on the levels of exposure at ...

Fertilizers common to crop production in Indiana usually contain nitrogen in one or more of the following forms: nitrate, ammonia, ammonium or urea. Each form has specific properties that determine ...

The lab preparation of ammonium sulfate happens on a small scale, but its industrial production happens on a much larger scale in several stages.

On low-CEC soils (less than 5 meg/20000g), for example, some leaching of cations can occur. Fall applications of ammonium N and potassium on these soils could result in some leaching below the root ...

Ammonia, NH 3, is an alkaline gas and so turns damp red litmus paper blue. Ammonium ions (NH 4 +) – found in ammonium compounds such as ammonium chloride, ammonium nitrate and ammonium sulfate ...