Standard No.:	GB 25572-2010
English Name:	Food Additive - Calcium Hydroxide
Chinese Name:	食品添加剂 氢氧化钙
Chinese Classification:	X09    Hygiene, safety and labor protection
Professional Classification:	GB    National Standard
Source Content Issued by:	MOH
Issued on:	2010-12-21
Implemented on:	2011-2-21
Status:	superseded
Superseded by:	GB 1886.375-2024 National food safety standard-Food additive-Calcium hydroxide
Superseded on:	2024-8-8
Target Language:	English
File Format:	PDF
Word Count:	4000 words
Translation Price(USD):	100.0
Delivery:	via email in 1 business day

1 Scope This standard is applicable to the food additive calcium hydroxide which is calcined and digested of such materials as limestone or limestone-containing oyster shell. 2 Normative References The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. 3 Molecular Formula and Relative Molecular Mass 3.1 Molecular formula Ca(OH)2 3.2 Relative molecular mass 74.09 (according to Atomic Weights of the Elements 2007) 4 Technical Requirements 4.1 Sensory requirements: shall be in accordance with those specified in Table 1. Table 1 Sensory Requirements Item Requirement Inspection method Color White Take appropriate amount of specimen, put it into a 50mL beaker, and observe its color and structural state in natural light. Structural state Powder 4.2 Physical and chemical indexes: shall be in accordance with those specified in Table 2.

Foreword i 1 Scope 2 Normative References 3 Molecular Formula and Relative Molecular Mass 4 Technical Requirements Annex A (Normative) Inspection Method