Halal Additive Checker
E542

Bone Phosphate

Is it halal?

That depends on the source used, which is why this page states the source rather than a verdict:

Animal-derived

Comes from an animal. Whether it is permitted follows the animal itself and how it was slaughtered, so certification is what answers it.

Made from animal bone. Permissibility follows the animal and its slaughter, so certification is required.

Found in
Anti-caking agent, supplements

Others from the same source

This page describes what additives are made from. It does not issue rulings. Where a source varies by manufacturer, the only reliable answer for a specific product is its halal certification or the manufacturer’s own statement — and where the schools of law differ, the position of the school you follow is the one that answers your question.