sentence: White phosphorus is more reactive than red phosphorus.
sentences_after: When white phosphorus is heated in an alkali, it disproportionates to produce hypophosphites and phosphine. Red phosphorus can burn but needs to be ignited. Phosphorus reacts with the halogens to make phosphorus halides. It reacts with some metals to make phosphides.
concept_name: white phosphorus
headings: Phosphorus Properties Chemical properties
categories: Chemical elements