GB/T 37038-2018 in English

VALID

DSD acid(4,4-Diaminostilbene-2,2-diasulfonicacid)

Issued on:2018-12-28
Implemented on:2019-11-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $220.00
$214.00

Standard No:	GB/T 37038-2018
Document status:	VALID
Title in English:	DSD acid(4,4-Diaminostilbene-2,2-diasulfonicacid)
Title in Chinese:	DSD酸(4，4′-二氨基二苯乙烯-2，2′-二磺酸)
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2018-12-28
Implemented on:	2019-11-01
Chinese Classification:	G56-Dye intermediate
Professional Classification:	GB-National Standard
Related Keywords:	dsd acid high-purity dsd acid dsd acid products reverse diazotization method application test method dsd dsd
Related Topics:	Styrene Styrene Standard iso amino acid Rosenesulfonic acid p-diethylbenzene Styrene Standard Amino Acid Total Amino Acid Content Dibromoethylbenzene Sulfonic acid ionization degree Sulfonate sequence amino acid Sulfonic acid Phenylacetic acid peak Benzenesulfonic acid dehydration Amino Acid Secondary Mass Spectrometry amino acid iso Styrene acid value Sulfonic acid ionization Mass Spectrometry of Twenty Amino Acids High-quality dibromoethylbenzene iso amino acid sulfonic acid sulfonate Sulfonic acid ionization Secondary sulfonate iso, amino acid Diaminodibenzoin p-toluene disulfonic acid amino acid iso Benzene disulfonic acid Diethylstyrene Benzenesulfonic acid dehydration Diethylene hydroxylamine Analysis method of stilbene Chromium diphenylcarbazone Diethylstyrene Phenylacetic acid content divinylbenzene+ peak Diammonium Ammonium Acid amino acid secondary sequence iminodiacetic acid artificial amino acid Sulfamic acid 85 amino acid public sequence amino acid UV Vapor phase divinylbenzene peak Analytical method for phenylacetic acid Diphenylboronic acid Vinyl acid amino acid sequence Amino Acid Dart Downstream of divinylbenzene Stilbene amino acid synthesis xylene in styrene How about the sulfonic acid group Diethylcadmium amino acid 25 how benzene sulfonic acid two amino acids amino acid structure Jiangbei Sulfamic Acid twenty amino acids Where benzenesulfonic acid twenty amino acid structures two-dimensional basis Benzenesulfonic acid like this essential amino acid central amino acid Diene chain stilbene glycosides UV amino acid Potassium acesulfamate Ethyl aminobenzoate methylsulfonate diethyl tellurium Benzenesulfonic acid and water Guam sulfamate Classification of twenty amino acids The electronic formula of the sulfonic acid group How does benzenesulfonic acid remove water aminodiacetic acid Sulfonated Amino Acids two eggs Indium sulfamate Guanylacetic acid Jiangbei Sulfamic Acid Dimethylphenylalanine Diphenylberyllium Sulfonic acid electronic formula diethyl ether Guanylacetic acid amino acid sequence Sulfonic acid electronic formula amino acid formula Diphenylsemicarbazide Chromium UV Di-2-Ethylhexyl Phosphate Diammonium dithiodiacetate GBT37038 GB/T 37038-2018 Glycine Illegal Calcium dodecylbenzenesulfonate glutamic acid diacetic acid Triethanolamine dodecylbenzenesulfonate The role of phenylacetic acid Several peaks appear in the gas phase of divinylbenzene Amino acid code charged amino acids Acetaminophenyl sulfonic acid Divinyl-ethylvinylbenzene type chromatographic column Divinylbenzene content test Sulfamic acid execution standard number Divinylbenzene Purity Gas Phase Testing Diethylbenzene mass Sulfamic acid products Methyl disulfonic acid quality standard Aminotriacetic acid detection Methyl disulfonic acid company Methanesulfonic acid test method Styrene sulfonate resin Methyl disulfonic acid quality amino acid execution

《GB/T 37038-2018DSD酸（4，4′-二氨基二苯乙烯-2，2′-二磺酸）》由TC134（全国染料标准化技术委员会）归口，主管部门为中国石油和化学工业联合会。

Introduction

In-depth analysis of DSD acid quality standards and detection methods

Items	Indicator requirements	Scope of application	Test method
DSD acid total amino value/%	≥95.00 (dry product), ≥60.00 (damp product)	Applicable to DSD acid products	Reverse diazotization method (GB/T 37038—2018, Section 5.3)
DSD acid purity/%	≥95.00	Applicable to all product forms	Reversed-phase high performance liquid chromatography (GB/T 37038—2018, Section 5.4)
Mass fraction of alkali insoluble matter/%	≤0.10	Applicable to all product forms	Dissolution and calcination methods (GB/T 2381—2013)

Case study of DSD acid in industrial applications

Take DSD acid as an example. It is mainly used in the production of dye intermediates. Its quality indicators can be accurately determined by reverse diazotization method and high performance liquid chromatography to ensure that the product quality meets national standards.

Analysis of Standard Formulation Background and Technological Evolution

The formulation of GB/T 37038—2018 is based on the industry's demand for high-purity DSD acid. With the development of the dye industry, the quality requirements of DSD acid have gradually increased. The new standard introduces more advanced detection methods (such as high-performance liquid chromatography) to replace traditional methods, thereby improving detection efficiency and accuracy.

Implementation Recommendations

Quality Control:Carry out daily monitoring in strict accordance with the indicators specified in the standard.
Detection Technology:High-performance liquid chromatography and reverse diazotization are recommended to ensure the accuracy of the data.
Employee Training:Regularly train technical personnel on standard interpretation and operating procedures.
Record Management:Establish a complete detection record system to facilitate traceability and auditing.