Some standard content:
1CS71.100.01
Chemical Industry Standard of the People's Republic of China
Dye Intermediates
(1999)
Published on April 20, 1999
Implemented on April 1, 20000
Published by the Petroleum and Chemical Industry Bureau of China
No.: 2798-1999
HG/T36031999
This standard is based on the actual situation of domestic production and refers to the product specifications of relevant foreign companies. The inspection items and technical indicators are determined according to the actual situation of domestic production. This standard was proposed by the Technical Supervision Department of the former Ministry of Chemical Industry of the People's Republic of China. This standard is under the technical supervision of the National Chemical Industry Technical Requirements Conference. The originator of this standard: Yangyang Chemical Research Institute, Wujin Southeast, the authors of this standard: Yang Jiemin, Li Zijue, Xie Zhiju, Jiang Juta. 39
1 Scope
Chemical Industry Standard of the People's Republic of China
W-aminoacetanilide
11G/T36U31999
This standard specifies the requirements, sampling, test methods, inspection rules and packaging, transportation and storage of meta-aminoacetanilide. This standard adds the m-aminoacetanilide obtained by chemical reduction of m-nitrocellulose. This product is mainly used in dye industry. The structural formula is: NH-CO-H CHON Relative molecular weight: 53.18 (according to 1SS5) 2 (atomic mass) The following standards contain clauses that may constitute clauses of this standard through inclusion in this standard. When this standard is published, the versions shown are valid. All standards will be revised. All parties using the technical standards should discuss the possibility of using the new version of the underlined standard. GH199-30bZxz.net
Marking of dangerous goods packaging
GH/T 60155
Chemical reagents Titration analysis (mass analysis) Preparation of standard solution GB/T 603.B5
125c89
CK/T 2384 --92
3 Requirements
Chemical reagents
Preparation of preparations and products used in the formula test method Limiting number of hundreds of expressions and determination methods The melting point of the material shall be determined by the national standard and convex method. The water specifications and final formula (eg35:1) The quality of the meta-aminoacetylamide shall meet the requirements of Table 1. Table 1 Meta-nitrogen content requirements
Total hydrogen base value, meaning
Dry crystal toughness point: C
The same as the end of the monoamine content: 5
State Suo Shidi and Chemical Industry Bureau 1999-04-70 approved the directive
light red to red pressed special powder request
200C-04-C1 implementation
4 sampling
HCAr36031999
take samples from more than 10 batches (with about the same product batch) of products, and when the small batch is shown, it shall not be less than 3 barrels. When sampling, the probe should be used to take samples including the upper, lower and third parts. The total sampling amount should be less than 10 days. After the samples taken are packed together, they are divided into two sealed bottles and labeled with the manufacturer's name, product name, batch number and sampling interface. Put them in the bottle for inspection and keep them on the right side for reference.
5 Test method
Unless otherwise specified, the reagents used in this standard refer to purely pure reagents; the water shall conform to the third-grade water specification in GB/T 6682. The leakage required by this standard shall be determined by the standard. The preparations and products shall be prepared according to the relevant provisions of CB/T-3 and GB/603. The inspection results shall be determined according to the value comparison method in GB/T1231).
5.1 The external distance is determined by visual inspection.
5.2 Determination of total base value
5.2.1 Summary of method
Nitrogen transport in the moon. In the presence of excess inorganic acid, primary amines can react with nitrite to generate diammonium salts. Check the end point of the chemical reaction with starch molten potassium test 5-2-2 or the reagent is used.
Salt solution: 1: (volume ratio;
Add 90gL sodium nitrite titration solution (NaNO) 0.5gmnl/T (B/T) according to the specified system and calibration. 5.2.3 Determination of the actual step
Weigh about 9.7g (accuracy 0.0002g) of the sample and add 50ml of water. Add 200ml of water: +1 ml of salt solution to make it melt, add 1gL of potassium hydroxide and cool to below 300ml, then insert the end of the sample into the solution and keep stirring for half an hour to moisten it. 2bmo 1/L of nitrous acid standard titration box solution (accounting for 95% of the total required amount) is added at a time: then the fixed tube tip is raised to the liquid rate, and (.25mnl/1. Nitrous acid standard titration solution is added continuously. The starch potassium test paper hardens slightly blue at the point of interest. Use the same method to test the sample. The total amount of ethylbenzene () is calculated according to the formula (1): Xc(V-VoJX6.1502×100
Where, .: volume of nitrous acid standard titration solution to be titrated, ml.——volume of standard nitrous acid standard titration solution for white test, ugly,. The original amount of nitrous acid standard titration solution to be titrated is: ma1/312— — Add 1.00 ml of nitric acid standard solution (Na2O3 = 1.000 l/l) and add the equivalent of 1.00 ml of nitric acid standard solution in grams. 2. The difference between the results of the two determinations is less than 0.3. The average value is taken as the determination result: 5-3 Determination of melting point of dry product. The sample is subjected to the temperature of 10 °C and placed in an infrared oven or under an infrared lamp. 5,4 Determination of content of diamine by step method. 5-4.7 The method should be carried out in the presence of a sodium hydroxide medium. The diamine is reacted with the diazolyl hydroxide. 5.4.2 Reagents and solvents. I1G/3603-1999. Standard titration on toluene with magnetic gravitational short pad: c(CI,C) = 0.05nnl/1.; Sodium nitrosaldehyde standard solution NaNO,) =.5mOI/. According to (T3/S0 heat fixation and calibration, dye point determination with starch for chemical certification
acetic acid Xie deep line: 2mnl/
H female drop: C number/L. weighing garbage 1Cg11 acid, people 15G/T. acid soluble hoop 201. This drop liquid is now used: Hong Kong chemical drop 100/ml;
11 Rapid qualitative method,
5.2.31.51oJ/Preparation of standard solution of paraformaldehyde in benzene: 54% in a 5KIL beaker, add 15Um1. Concentrated aliquot, stir and add water to make it completely, filter and add 1000mT. Add some solution, dilute the sample to the scale with water, and store in a dark place for later use. 2mT. Distilled water 30ml. Add 200L of hydrochloric acid, evaporated water, and evaporated at 1°C until the sodium aldehyde solution in the beaker shows blue color, and keep it unchanged for 5min. Use the same method to calculate the blank test.
For the standard hydrochloric acid solution, calculate according to formula (2), c(V-1)
Where: - the concentration of sodium nitrite standard solution, l1 -- the volume of standard nitrite solution consumed, ml.V. Blank test consumption of sodium nitrite standard titration rate: 5.4.20.05mul/1 For the preparation of standard sodium nitrite titration solution (2)
For the standard sodium nitrite solution, add 50ml of sodium nitrite standard solution and incubate in ice water for 3min. The stain should be magnetically stained with paper to show the color (the standard sodium nitrite solution should not be overconcentrated). The temperature is 50 ...The standard high-activity reduction of amine heavy oxygen salt is carried out: when the rate of the test solution drops on the wave machine, the intersection of the latent liquid and the compensation circle is not colored or extremely colored. The color of the light at the intersection of the evening wear is the waypoint. Record the light emission of the solution and mark the rise and fall of the solution. Then determine the standard method for the lack of amine hydrogen, and then test it with the [06.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0 The content of this product expressed in mass percentage is called the content of this product (duck and value) X, calculated by the formula (V, 240.1G8. = x-09
where: V is the content of the standard solution of methylamine deuterium. l: - the density of the standard solution collected by the heavy heat standard titrator. m1n./1.! The mass reduction of the sample is: 1GH1.nm for the standard solution of methylamine deuterium (CHN) 1.oCm/L. The mass reduction of the sample is shown in Table 6.
6-1 Inspection classification
HG/T 3603-1999
All the requirements of the factory inspection are as follows. 6.2 Factory Inspection
The factory inspection department shall conduct inspection according to the requirements of the production standard. The production department shall ensure that the products meet the requirements of the standard. All batches of products leaving the factory have a fixed quality certificate. 5.3 Re-inspection
If the product does not meet the requirements of this standard, samples shall be taken from twice the amount of packaging for re-inspection. If the result shows that only one indicator does not meet the requirements of this standard, the whole product shall not be inspected according to the provisions of this standard. Inspect the received product to see if it meets the requirements of this standard.
Marking, packaging, transportation and storage
7.1 Marking
The outer packaging of aminoacetylphenoxide should be painted with a solid mark indicating the manufacturer's name, product name, trademark, standard number, product batch number, production date and net weight, and marked with a "toxic substance" mark in accordance with relevant regulations. Each batch of packaged products should have a quality certificate containing the manufacturer's name, trademark, product name, batch number, production date, product net weight, and a certificate proving that the product meets the requirements of this standard. 7.2 Packaging
Aminoacetylphenoxide should be packed in plastic bags or plastic bags with inner linings, and weigh 2k or 100g in barrels. 7.3 Transportation
Strong vibration should be avoided during transportation, and care should be taken during transportation.
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