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Food additive -- Dimethyl sulfide
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GB 29964-2013
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Basic data
| Standard ID | GB 29964-2013 (GB29964-2013) |
| Description (Translated English) | Food additive -- Dimethyl sulfide |
| Sector / Industry | National Standard |
| Classification of Chinese Standard | C53 |
| Classification of International Standard | 67.020 |
| Word Count Estimation | 8,879 |
| Regulation (derived from) | China Food & Drug Administration [2013] No. 234, November, 1, 2013 |
| Issuing agency(ies) | National Health and Family Planning Commission of the People's Republic of China |
| Summary | This standard applies to food additives: dimethyl disulfide. |
GB 29964-2013: Food additive -- Dimethyl sulfide
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Food additive-Dimethyl sulfide
National Standards of People's Republic of China
National Food Safety Standard
Food additive dimethyl disulfide
Issued on. 2013-11-29
2014-06-01 implementation
National Food Safety Standard
Food additive dimethyl disulfide
1 Scope
This standard applies to the methyl mercaptan or methyl chloride as raw materials obtained food additive dimethyl sulfide.
2 chemical name, molecular formula, molecular mass and structural formula
2.1 Chemical Name
Dimethyl disulfide
Formula 2.2
C2H6S2
2.3 formula
SS
2.4 relative molecular mass
94.19 (according to 2007 international relative atomic mass)
3 Technical requirements
3.1 Sensory requirements
Sensory requirements shall comply with the requirements of Table 1.
Table 1 Sensory requirements
Project requires test methods
Colorless to pale yellow color of the sample was placed inside color than the tube, were visually observed
Liquid state
Aroma of onion-like aroma GB/T 14454.2
3.2 Physical and Chemical Indicators
Physical and chemical indicators should be consistent with the provisions of Table 2.
Table 2. Physical and chemical indicators
Item Index Test Method
Dimethyl disulfide content, w /% ≥ 97.0 Appendix A
Refractive index (20 ℃) 1.522 ~ 1.527 GB/T 14454.4
The relative density (25 ℃/25 ℃) 1.058 ~ 1.065 GB/T 11540
Appendix A
Determination of dimethyl disulfide content
A.1 instruments and equipment
A.1.1 chromatograph. According to GB/T 11538-2006 provisions in Chapter 5.
A.1.2 Column. capillary column.
A.1.3 Detector. Hydrogen flame ionization detector.
A.2 Determination
Area normalization method. According to GB/T 11538-2006 10.4 Determination.
A.3 repeatability and results are shown
According to GB/T 11538-2006 provisions in 11.4, shall comply with the requirements.
Food Additives dimethyl disulfide gas chromatograph (area normalization method) See Appendix B.
Appendix B
Food additive dimethyl disulfide gas chromatogram
(Area normalization method)
B.1 food additive dimethyl sulfide gas chromatogram
Figure B.1.
Figure B.1 food additive dimethyl sulfide gas chromatogram
B.2 operating conditions
B.2.1 Column. capillary column, length 30 m, an inner diameter of 0.25 mm.
B.2.2 stationary phase. polyethylene glycol.
B.2.3 film thickness. 0.25 μm.
B.2.4 chromatography oven temperature. 80 ℃ constant temperature 10 min; then linear temperature programmed from 80 ℃ ~ 200 ℃, the rate of 10 ℃/min; final
Heated 10 min at 200 ℃.
B.2.5 inlet temperature. 230 ℃.
B.2.6 detector temperature. 230 ℃.
B.2.7 Detector. Hydrogen flame ionization detector.
B.2.8 carrier gas. nitrogen.
B.2.9 pre-column pressure. 60 kPa.
B.2.10 Injection volume. about 0.2 μL.
B.2.11 split ratio. 100︰1.
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