- natural Chilean potassic sodium nitrate consisting of a natural mixture of sodium nitrate and potassium nitrate (the proportion of the latter element may be as high as 44 %) of a total nitrogen content not exceeding 16,3 % by weight, produced in Chile by extraction from the nitrate mineral called 'caliche' by lixivation with a water solution, followed by crystallisation by differential cooling and/or solar evaporation ( 1 ).
- naravnega čilskega kalijevega natrijevega nitrata, sestavljenega iz naravne mešanice natrijevega nitrata in kalijevega nitrata (delež kalijevega nitrata je lahko do 44 %), pri katerem je skupna vsebnost dušika do vključno 16,3 mas.%, proizvedenega v Čilu z ekstrakcijo iz nitratnega minerala, imenovanega "caliche" z luženjem z vodno raztopino, ki mu sledi kristalizacija z diferencialnim hlajenjem in/ali izhlapevanjem na soncu ( 1 ).