JCS 71. 100. 01; 87. 060. 10G 57
Chemical Industry Standard of the People's Republic of China
Dye intermediates
(2000)
Issued on 2000-06-05
Implementation on 20010301
State Administration of Petroleum and Chemical Industry
Registration No.: 74982000
IIG/T 36782000
Www.bzxZ.netThis standard is formulated for the equivalent of the original industry standard SK1111·15 aminosulfonic acid. The main differences of this standard IS 4112-199. are as follows: The analysis of organic impurities content can be changed from high performance liquid chromatography to chemical analysis, and the determination item of water-insoluble matter content is changed from determination item. This standard is proposed by the Policy Department of the State Administration of Petroleum and Chemical Industry and approved by the National Dye Standardization Technical Committee. The standard is submitted to the Institute of Standardization of Chemical Industry of the People's Republic of China, Baoding Shunzuo Advanced Chemical Industry Co., Ltd. The main drafters of this standard are: Ji Xingguo, Er Jun, Jian Jian. The National Dye Standardization Technical Committee is responsible for the interpretation of Huang. 1 Scope
Chemical Industry Standard of the People's Republic of China
P-Aminobenzenesulfonic Acid
P-Sulrantlic Acld
HG/T 3678
This standard specifies the safety, sample, test methods, inspection regulations, acceptance marks, labels, packaging, storage and transportation of hydroxybenzenesulfonaldehyde. This standard applies to non-sulfonated p-aminobenzenesulfonic acid. Its main uses are suitable nesting materials, printing and dyeing agents and control attractants, etc.
Structure:
Source: CHONS
Relative reference: 173.1 International relative reference number in 17th century: 2 Cited standards
The following standards are established by the Conference and constitute the provisions of this standard through their applicability in this standard. When this standard was published, the total texts shown are all valid. All standards will be revised. The party using the standard should discuss the performance of the new version of the standard. GB/T 601-1988
G/T nnA-1SRs
Chemical reagents for quantitative analysis (volume analysis) Standards for preparation of chemical reagents and preparations used in their methods GB/T12501S89
GR/T6682-1992
3 Requirements
The limit value of the drug expression method and the determination method of the analytical laboratory water specification and test method (ne[S] 3696:1987) must meet the requirements of the quality requirements of the benzene. Table" Quality indicators of p-aminobenzenesulfonic acid (total oxygen content: %
extraction rate
water content,
carbon dioxide content
approved by the State Administration of Petroleum and Chemical Industry on 2000-06-05
Baiyou Baizhu
implemented on 2001-03-0
4 sampling
IG/136787000 ||t 10% of the product of the batch (with the average package product as one) shall be sampled by the test tube (or medium). The minimum batch size shall be the smallest. The total amount of samples collected shall not exceed 2. After the samples are evenly mixed, they shall be transferred to two clean and painted containers with ground mouth seats. The manufacturer name, product name, material number and sampling date shall be noted on the bottle. One bottle shall be used for inspection, sealed with paraffin wax and stored for future reference. 5 Tests Methods
Unless otherwise specified, the reagents used refer to analytical test reagents. The test water shall be determined by the standard water required by this standard. The test results shall be determined by the value comparison method of GE/T1250--:089. 5.1 Appearance
The test results shall be determined by the same date.
5.2 Determination of the total mass content||t 5-2.1 Method The method adopts the re-activation method, in which aromatic hydrocarbons react with sodium sulfite at low temperature and in the presence of excess inorganic acid to form chlorine. 5.2.2 Reagents and liquids Salt carrier: 1:1. Chemical composition: 100 μg/L. Sodium hydroxybutyrate solution Standard liquid: (V/L): 0.1 μg/L. Starch test paper 5.2.3 Determination step Weigh 0.5 g of para-hydroxybutyric acid test paper (0.2 g), place in a 500 ml beaker, add 60 ml of anhydrous sodium hydroxybutyrate 10 μL, and heat to dissolve. Cool to room temperature. Add 2 mL of hydrochloric acid. Add 1 mL of water. Add 1 mL of potassium iodide. Cool to 10-15 mL. Titrate with 1 mL/min of nitrous acid to determine the end point. When titrating, pull the tip of the burette into the well. When it is close to the end point, pull the titration tube out. Continue titrating and conduct a potassium iodide test. When the test solution on the test paper turns salty and remains for 5 minutes without disappearing, it is the end point. Perform an in-space test under the same conditions.
5.2.4 Expression of the analysis
The total information expressed as a mass fraction is calculated according to Formula 1: X(V-Ve)X0.1732
Wherein:
The concentration of sodium nitrite standard solution is .mul/L: The product of the concentration of nitrite standard solution consumed in the blank test is 1:1! [1>
The mass of the sample!
The mass of the para-hydrogen group in the acid equivalent to 1.00 mol of sodium acetic acid standard titration solution (NaNO,) is expressed as,
The difference between the results of the parallel determinations is less than 0.3 mol, and the arithmetic mean is taken as the determination result. 32
5.3 Determination of phenylene content
5.3.1 Method proposal
HG/T367B—2000
The water-gas method is adopted to obtain the para-hydrogen group of aniline from carbonic acid with water. After the escape, the original test chamber of the reaction of aromatic hydrogen with chlorinated acid in the presence of low temperature and other organic aldehydes to generate yellow mouse salts is used. 5.3.2 Reagents and solvents
Hydrochloric acid solution; +.
Titration of acid standard solution cNaN = 5.1mol/l potassium hydroxide,
sodium hydroxide solution: 40R/L:
secondary acid equal parts box chain: 5m
powder-potassium hydroxide test paper,
5.3.3 Determination steps
weigh the Place aminocarbonic acid sample (1g to 12g) in a 5mL flask, add 15ml of sodium hydroxide solution, add 15ml of distilled water, connect a balloon and a straight cooler to the flask, cool it with cold water and heat it continuously. Place 500mL of flask at the entrance of the cooler. Add 100mL of distilled water and 5mL of liquid into a cup. When the volume of the material in the flask is about 1mL, test it on the board: if no water appears, it is the optimal point (see figure). Add 100mL of distilled water into the cup. Potassium nitrate 1,0 ... (E3
Concentration of sodium nitrite standard solution, d/l; standard volume of sodium nitrite consumed by titration, standard titration rate of nitrite consumed by titration; mass of sample ·!
For illustration,
[Japanese standard JIS1I11-49, high efficiency phase chromatography method is used to determine the amount of aniline. (2)
HG/T3678-700C
The mass of aniline expressed in grams equivalent to 1.CLmL sodium nitrite standard titration filter: cNeN,) = 1.000mol/L, 5.4 Determination of the content of water-soluble substances 5.4.1 Reagents and instruments Sodium carbonate solution: 5/L: Glass filter (filter), 5.4.2 Determination steps Weigh 10% amino acid sample (with a concentration of 223 g/cm2) in a 100 mL baking cup, add 200 ml of water, adjust the pH to 7.3.7 with anhydrous sodium ferrate solution, heat to boiling, and let it pass through the filter. Filter it through a filter that has been kept constant at 120°C, rinse it with warm water, and dry it in a 120°C oven to keep constant weight. 5.4.3 Expression of the results: Calculate the water content of the substance by percentage and then add (3): X=m×1ec=tt||wherein: Water content of the substance after decomposition: 5.5 Determination of the decomposition state of aminocarbonic acid in acid 5.3.1 Reagents: Anhydrous sodium carbonate: 6\T.
5.5.2 Determination step
Weigh 2g of aminosulfonic acid or aminosulfonic acid <accuracy 0.1> in a beaker, add 100ml of water and 1ml of anhydrous sodium carbonate solution. Let it dissolve, and the clean liquid should be in a clear state.
6 Inspection rules
6.1 Inspection classification
All items specified in Table 1 are included in the inspection. 6.2 Production inspection
The quality inspection department of the aminosulfonic acid manufacturer shall conduct quality control at the factory. The manufacturer shall ensure that the aminosulfonic acid produced by the manufacturer meets the requirements of this standard. It is hoped that the aminosulfonic acid or aminosulfonic acid leaving the factory shall have a quality certificate in the form of a medical document. 5.3 The user shall inspect the aminosulfonic acid received by the user to check whether it meets the requirements of this standard.
If one of the inspection results does not meet the requirements of the standard, the packaging should be re-inspected twice. That is, if one of the indicators does not meet the labeling requirements, the product can be accepted in batches. 7.1 Labels are required for packaging, transportation and storage.
For hydrogen acid-free storage, the outer surface of the product must be firmly coated with the following signs and labels: manufacturer name, address, product name, batch number, etc.
1: Industry bad road 141141995 just determined 5 points Net weight: 4
HGT3678-20C0
Grade, trademark, net weight, date of production, each package should be accompanied by a standard label, including: product name, manufacturer name, trademark and product quality certificate in accordance with the requirements of this standard: 7.2 Packaging
Use plastic lining for packaging, net weight 25g
7.3 Transportation
The box should be free from impact and rain,
The product should be placed in a dry and ventilated place to avoid moisture, 3.
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