This standard specifies requirements, test methods, inspection rules, marking, packaging, transportation and storage of proply p-hydroxybenzoate.
This standard is applicable to proply p-hydroxybenzoate, which is a food additive prepared by esterification of PHBA and propanol using sulfuric acid as the catalyst. This product is used as the preservative for foods, drugs and cosmetics.
Molecular formula: C10H12O3
Structural formula:
Relative molecular mass: 180.20 (according to the international relative atomic mass in 2001)
2 Normative References
The following normative documents contain provisions which, through reference in this standard, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections), or revisions, of any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.
GB/T 191 Packaging—Pictorial Marking for Handling of Goods (GB/T 191-2000, eqv ISO 780:1997)
GB/T 601 Chemical Reagent—Preparations of Reference Titration Solutions
GB/T 602 Chemical Reagent—Preparations of Standard Solutions for Impurity (GB/T 602-2002, ISO 6353-1:1982, NEQ)
GB/T 603 Chemical Reagent—Preparations of Reagent Solutions for Use in Test Methods (GB/T 603-2002, ISO 6353-1:1982, NEQ)
GB/T 617 Chemical Reagent—General Method for the Determination of Melting Range
GB/T 5009.76 Determination of Arsenic in Food Additives
GB/T 6678 General Principles for Sampling Chemical Products
GB/T 6679 General Rules for Sampling of Solid Chemical Products
GB/T 6682 Water for Analytical Laboratory Use—Specification and Test Methods (GB/T 6682-1992, ncq ISO 3696:1987)
GB 8850-2005 Food Additive—Ethyl p-hydroxybenzoate
GB/T 9724-1988 Chemical Reagent—General Rule for the Determination of pH
GB/T 9741 Chemical Reagent—General Method for the Determination of Residue after Ignition
3 Requirements
3.1 Properties: white crystal powder, odorless or slight special aroma, slightly bitter taste, burning.
3.2 Proply p-hydroxybenzoate shall be in accordance with those specified in Table 1.
