GB 28326-2012Food additives -- Hexyl acetate (English PDF)

1 Scope

This standard applies to acetic acid and hexanol as raw materials prepared by the food additives hexyl acetate.

2 Chemical name, molecular formula, structural formula and relative molecular mass

3 Technical requirements

3.1 sensory requirements. should be consistent with the provisions of Table 1.

Table 1 sensory requirements

The project requires a test method Color and colorless State liquid Place the sample in a colorimetric tube Visual observation Fragrance Fragrance GB/T 14454.2

3.2 Physical and chemical indicators. should be consistent with the provisions of Table 2.

Table 2 Physical and chemical indicators

Item Index Test Method Solubility (25 ° C) 1 mL The sample was dissolved in 1 mL of 95% by volume ethanol. GB/T 14455.3 Hexyl acetate content, w /% >= 98.0 Appendix A Acid value (in KOH)/(mg/g) <= 1.0 GB/T 14455.5 Refractive index (20 ° C) 1.407 ~ 1.411 GB/T 14454.4 Relative density (25 °C/25 °C) 0.868 ~ 0.872 GB/T 11540 Appendix A Determination of hexyl acetate content A.1 Instruments and equipment A.1.1 chromatograph. according to GB/T 11538-2006 in Chapter 5 of the provisions.

A.1.2 Column. Capillary column.

A.1.3 Detector. Hydrogen flame ionization detector.

A.2 Determination method Area normalization method. according to GB/T 11538-2006 10.4 determination of content.

A.3 repeatability and result representation According to GB/T 11538-2006 11.4 implementation of the provisions.

Food Additives Cetyl Acetate Typical Gas Chromatography (Area Normalization) See Appendix B.

Appendix B

Food Additives Acetyl Acetate Typical Gas Chromatography (Area normalization method) B.1 Food Additive Acetylhexylate Typical Gas Chromatography A typical gas chromatogram of the food additive, hexyl acetate, is shown in Figure B.1.

Figure B.1 Typical additives for food additives, hexyl acetate

B.2 Operating conditions B.2.1 Column. capillary column, length 30m, inner diameter 0.32mm.

B.2.2 Stationary phase. (5% phenyl) methylpolysiloxane.

B.2.3 Film thickness. 0.25 µm.

B.2.4 Temperature of the chromatographic furnace. 130 °C constant temperature.

B.2.5 Inlet temperature. 250 ° C.

B.2.6 Detector temperature. 250 ° C.

B.2.7 Detector. Hydrogen flame ionization detector.

B.2.8 Carrier gas. nitrogen.

B.2.9 Carrier gas flow rate. about 30 mL/min.

B.2.10 Injection volume. 0.2 µL.

B.2.11 Split ratio. 1/75.