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GB 29962-2013: Food additive -- 2-mercapto-3-butanol
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| GB 29962-2013 | English | 189 |
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Food additive -- 2-mercapto-3-butanol
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Standard similar to GB 29962-2013
GB 28401 | GB 28338 | GB 28316 | GB 29952 | GB 29953 | GB 29956 | Basic data
| Standard ID | GB 29962-2013 (GB29962-2013) |
| Description (Translated English) | Food additive -- 2-mercapto-3-butanol |
| Sector / Industry | National Standard |
| Classification of Chinese Standard | C54 |
| Classification of International Standard | 67.020 |
| Word Count Estimation | 8,890 |
| 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: 2 mercapto-3 butanol. |
GB 29962-2013: Food additive -- 2-mercapto-3-butanol
---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-2-mercapto-3-butanol
National Standards of People's Republic of China
National Food Safety Standard
Food additive 2-mercapto-3-butanol
Issued on. 2013-11-29
2014-06-01 implementation
National Food Safety Standard
Food additive 2-mercapto-3-butanol
1 Scope
This standard applies to the 2-mercapto-3-butanone for raw materials of food additive 2-mercapto-3-butanol.
2 chemical name, molecular formula, molecular mass and structural formula
2.1 Chemical Name
2-mercapto-3-butanol
Formula 2.2
C4H10OS
2.3 formula
HO
SH
2.4 relative molecular mass
106.18 (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, the specimen was placed inside color than the tube, were visually observed
Liquid state
Strong aroma pungent odor, diluted there Congxiang, meaty 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
2-mercapto-3-butanol content (sum of the two isomers), w /% ≥ 99.0 Appendix A
Refractive index (20 ℃) 1.476 ~ 1.485 GB/T 14454.4
The relative density (25 ℃/25 ℃) 1.010 ~ 1.017 GB/T 11540
Appendix A
Determination of 2-mercapto-3-butanol 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 2-mercapto-3-butanol gas chromatograph (area normalization method) See Appendix B.
Appendix B
Food additive 2-mercapto-3-butanol gas chromatogram
(Area normalization method)
B.1 food additive 2-mercapto-3-butanol gas chromatogram
Figure B.1.
1--2- mercapto-3-butanol isomer 1;
2--2--mercapto-3-butanol isomer 2.
Figure B.1 food additive 2-mercapto-3-butanol 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. 120 ℃ constant temperature 10 min; then linear temperature program from 120 ℃ ~ 200 ℃, the rate of 10 ℃/min; most
After 200 ℃ heated 20 min.
B.2.5 Inlet temperature. 240 ℃.
B.2.6 detector temperature. 240 ℃.
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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