• Sulphur ignites spontaneously in fluorine at room temperature.
• Amorphous boron is spontaneously flammable ( or combustible ) at 800°C.
• Sulphur ignites spontaneously in fluorine at room temperature.
• Amorphous boron is spontaneously flammable ( or combustible ) at 800°C.
Циммерман М., Веденеева К.. Русско-Английский научно-технический словарь переводчика. Russian-English scientific dictionary for translators. 2012