Talk:Sodium polysulfide

Flammability
The firediamond says this is not flammable but Na2S4 is flammable. It is very likely to burn, so can we get some reference on combustibility or lack of it? Here: https://echa.europa.eu/information-on-chemicals/cl-inventory-database/-/discli/details/55589 a company claims it is self heating and could catch fire. Graeme Bartlett (talk) 07:32, 20 January 2021 (UTC)