E536 Potassium ferrocyanide — is it halal?

Description

Potassium ferrocyanide E536 (yellow prussiate of potash, K4[Fe(CN)6]·3H2O) — synthetic: EFSA 2018 — from sodium or calcium cyanide and iron(II) sulphate via sodium ferrocyanide, Ca(OH)2, KCl, K2CO3; EFSA 2023 — from HCN with FeCl2 and Ca(OH)2 or with KOH and iron; in China also from coke-oven gas and wastes.

Names: Ферроцианид калия · Potassium ferrocyanide · فيروسيانيد البوتاسيوم

Also known as: E 536, E-536, Е536, INS 536, Potassium hexacyanoferrate(II), Potassium hexacyanoferrate, Tetrapotassium hexacyanoferrate, Potassium ferrocyanide trihydrate, Yellow prussiate of potash, Prussiate of potash, Hexacyanoferrate of potassium, CAS 14459-95-1, CAS 13943-58-3, EINECS 237-722-2, K4[Fe(CN)6]·3H2O

Category: Anti-caking agents

Regulatory source: EU 1333/2008

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