Water conditioner use during fishless nitrogen cycle

Thanks thor.

The ammonia solution I saw in a local laboratory chemical shop has a label with following data only

Pure Ammonia
Specific Gravity - 0.91.
Assay 25% min.
Maximum limits of impurities: 
non volatile mater - 0.01%
Chloride - 0.001%
Sulphate - 0.002%
Arsenic - 0.00002%
Iron - 0.0001%
Lead - 0.0001%


Can I use it for fishless cycling?

I have already started nitrogen cycling with fish food but haven't got any traces of ammonia when I tested with API freshwater master test kit.

Please suggest if I can use the above mentioned ammonia solution for cycling.

Thankd