The fire had started when a batch of nitrocellulose - a chemical used in nail polish - had been allowed to dry out and then ignited in the summer heat.
Ugunsgrēks sākās tad, kad tika pieļauts, ka nitrocelulozes - nagu lakās izmantojamas ķīmiskās vielas - partija izžūst un tad vasaras tveicē aizdegas.