Some standard content:
National Standard of the People's Republic of China
Food additive
Ethyl hexanoate
Food additive
Ethyl hexanoate
Scope of application and other instructions
1.1 This standard specifies certain characteristics of ethyl hexanoate in order to evaluate its quality. UDC 661. 732. 7
GB8315—87
1.2 Ethyl hexanoate is synthesized by esterification reaction of hexanoic acid and ethanol with sulfuric acid as catalyst. Ethyl hexanoate is mainly used to prepare edible (and wine) flavors.
2 Product chemical name, molecular formula, structural formula, molecular weight Chemical name:
Molecular formula:
Structural formula:
Molecular weight:
Technical requirementsbZxz.net
Ethyl hexanoate
CH3 (CH2), COOCH, CH3
144.21 (according to the international atomic weight of 1983) item
Relative density (25/25C)
Refractive index (20℃)
Acid value (in mg·KOH/g (in terms of Pb),%
Ester content,%
Solubility (25℃)
Arsenic (As) content,%
Heavy metal content (in terms of Pb),%
Test method
Not more than
Not less than
Not more than
Not more than
Colorless and transparent liquid, the color does not exceed the color of standard colorimetric solution No. 5. The fruit aroma and wine aroma of pineapple are similar
0. 867~0. 871
1.406~1.409
1mL sample is completely dissolved in 2mL70% ethanol
Unless otherwise specified, the reagents used in the test are analytically pure reagents, and the water is distilled water or water of corresponding purity. 4.1 Color inspection
Approved by the Ministry of Light Industry of the People's Republic of China on November 28, 1987, and implemented on March 1, 1988
4.1.1: Instruments
Volume flask: 100mL
b. Colorimetric tube: 25 or 50mL,
4.1.2 Reagents and solutions
Potassium dichromate (GB642): high-grade pure,
Sulfuric acid (GB622): 2% solution:
GB 8315---87
c Standard colorimetric solution No. 5 color scale: Accurately weigh 0.0011g of potassium dichromate into a beaker, add a small amount of 2% sulfuric acid solution to dissolve it, then pour it into a 100mL volumetric flask, dilute to the scale with 2% sulfuric acid solution, shake for later use. 4.1.3 Colorimetric method
Place the sample and the standard colorimetric solution at the same scale of the colorimetric tube respectively, and evaluate the color along the axis direction under a white background. 4.2 Determination of aroma
See Q795 "Uniform test method for spices - Determination of aroma". 4.3 Determination of relative density (25/25℃) See QB796 "Uniform test method for spices - Determination of specific gravity". Correction coefficient f: 0.00080 for every 1℃ difference 4.4 Determination of refractive index (20℃)
See QB798 "Uniform test method for spices - Determination of refractive index" 4.5 Determination of acid value
See QB806 "Uniform test method for spices - Determination of acid value". The allowable difference of the test results is 0.2.
4.6 Determination of ester content
See QB807 "Uniform test method for spices - Determination of aldehyde value". Sample dosage: 1g
Contains the most ethyl hexanoate, the ethyl hexanoate content is 0.1421# The allowable difference of parallel test results is 0.5%. 4.7 Determination of solubility (25℃)
See QB800 "Unified test method for spices - Determination of solubility". 4.8 Determination of As content
4.8.1 Instrument
According to the "As inspection method" of the Chinese Pharmacopoeia 1985 edition * Instrument warning diagram 4.8.2 Reagents and solutions
Hydrochloric acid (GB622): 1:1 solution;
Magnesium oxide (GB9857);
Magnesium nitrate (HG31077): 10% solution;
Potassium iodide (GB1272): 15% bath solution
Stannic acid (GB638): 40% solution. Prepare according to GB603 Chemical reagent preparation and product preparation method: No metal zinc (H GB3073)
Lead acetate cotton: Prepare according to GB603,
Aubromine mercury test paper: Prepare according to GB603
Standard solution (1mL contains 0.001mg of steatite): Prepare according to GB602 and dilute 100 times. 4.8.3 Operation procedure
Weigh 1g of sample (accurate to 0.1g), add 1g of magnesium oxide and 5ml of magnesium nitrate solution to 50mL of porcelain evaporator (take the same amount of magnesium oxide and magnesium nitrate solution as blank at the same time). After evaporating to dryness in a boiling water bath, heat with low heat to carbonize, and then burn to 93°C at 500~600°C. 8315—87
Ashes completely. Cool, add a small amount of water, then add hydrochloric acid solution to neutralize and dissolve the residue, add water to a total volume of 23mL, transfer to a conical flask, add 5mL hydrochloric acid, 5mL potassium iodide solution and 5 drops of stannous chloride solution, shake and let stand at room temperature for 10 minutes, then add 2g of arsenic-free metal zinc, immediately install the glass tube filled with lead acetate cotton and mercuric bromide test paper, and place it in a dark place at 25-30℃ for 1h. The color of the mercuric bromide test paper must not Deeper than the standard. The standard is 3mL of arsenic standard solution and the sample are treated in the same way. 4.9 Determination of heavy metal content (in terms of Pb) 4.9.1 Reagents and solutions
a. Ammonia water (GB631): 1:3 solution,
b. Glacial acetic acid (GB676): 30% solution, c. Phenolic acid indicator solution: 1% ethanol solution, prepared according to GB603 "Chemical reagent preparation and product preparation method"; d. Saturated hydrogen sulfide water: prepared according to GB603 Preparation (prepared before use): e. Lead standard solution (1mL contains 0.01mg lead): Prepare according to GB602 "Preparation Method of Chemical Reagent Impurity Standard Solution" and dilute 10 times.
4.9.2 Operation Procedure
Weigh 2g sample (accurate to 0.1g), place in 50mL porcelain evaporator III, evaporate to dryness on a boiling water bath, first carbonize with low heat, then ash at 500℃, cool, add 0.5mL acetic acid solution, dissolve and add 20mL water (Filter if necessary), place in a 50mL Nessler colorimetric tube, add 1 drop of phenolic acid indicator solution, and adjust to light red with ammonia solution. Add 0.5ml acetic acid solution, add water to 25mL, add 10mL saturated hydrogen sulfide water, shake well, and place in the dark for 10min. Its color shall not be darker than the standard. The standard is to take 2mL lead standard solution, add 0.5mL acetic acid solution, add water to 25mL, add 10mL saturated hydrogen sulfide water solution, shake well, and place in the dark for 10min.
5 Inspection rules
5.1 Ethyl hexanoate shall be inspected by the technical inspection department of the manufacturer. The manufacturer shall ensure that all products meet the requirements of this standard. Each batch of products shipped shall be accompanied by a quality certificate. The content includes: manufacturer name, product name, production date, batch number, net weight, product quality certificate of compliance with this standard and standard number. 5.2 The acceptance unit has the right to inspect whether the quality of the received products meets the requirements of this standard in accordance with the provisions of this standard. Each batch number is inspected once, and different batch numbers are inspected separately. 5.3 For each batch of packaging units with less than 100 barrels (bottles), two barrels (bottles) of samples are taken; for more than 100 barrels (bottles), three barrels (bottles) are taken. When the package is opened for sampling, the appearance inspection should be free of moisture and impurities. Then shake it to mix it thoroughly, and put it into two clean and dry glass bottles with ground-mouth stoppers and caps. The bottles are marked with: manufacturer name, product name, batch number, quantity and sampling date. One bottle is used for inspection, and the other is kept for future reference.
5.4 If one of the indicators in the acceptance results does not meet the requirements of this standard, the sample can be re-drawn from twice the amount of packaging together with the manufacturer for re-inspection. If the re-inspection results still show unqualified indicators, the batch of products cannot be accepted. 5.5 When the supply and demand parties have objections to the product quality, they can resolve it by agreement or invite a third party to arbitrate. ：6 Marking, packaging, transportation, storage
6.1 Ethyl acetate is packed in tinned iron cans, black iron barrels or galvanized iron barrels. The outside of the packaging should be marked with: food additive product name, manufacturer name, trademark, batch number, net weight, tare weight, factory date, this standard number and flammable item mark (see GB190). If the ordering unit has special requirements, it can make a separate agreement with the manufacturer. 6.2 This product should be stored in a dry, ventilated, cool warehouse to prevent contamination by miscellaneous air and away from fire sources. Transportation must comply with the regulations of relevant departments.
6.3. If the specified storage and transportation conditions are met, the shelf life of this product is one year if the packaging is intact and unsealed. 94
Additional Notes:
GB831587
This standard is proposed by the Ministry of Light Industry of the People's Republic of China. This standard is under the jurisdiction of the Spice Industry Science Research Institute of the Ministry of Light Industry and the Food Hygiene Supervision and Inspection Institute of the Ministry of Health. This standard was drafted by Shanghai Spice Factory, Shanghai Food Hygiene Supervision and Inspection Institute, and Tianjin Third Spice Factory. This standard is equivalent to the 1981 edition of the US FCC (I). It is the third edition of the US Food Chemical Substances: (Food Additives) Specifications. The legal unit of specific gravity is changed to relative density, and the test method still uses QB796\"Uniform Test Methods for Spices-Specific Gravity Determination Method".
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