GB/T 23669-2016 in English

VALID

2，6-Dibromo-4-nitroaniline

Issued on:2016-12-30
Implemented on:2017-07-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $160.00
$156.00

Standard No:	GB/T 23669-2016
Document status:	VALID
Title in English:	2，6-Dibromo-4-nitroaniline
Title in Chinese:	2,6-二溴-4-硝基苯胺
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2016-12-30
Implemented on:	2017-07-01
Superseding:	GB/T 23669-2009 2 6 - Dibromo - 4 - Nitroaniline
Chinese Classification:	G56-Dye intermediate
Professional Classification:	GB-National Standard
Related Keywords:	23669-2016 standard gb/t 2，6-dibromo-4-nitroaniline introduction overview 2 6-dibromo-4-nitroaniline ≥98.00 % liquid chromatography method appearance evaluation method 2 6-dichloro-4-nitroaniline ≤0.05 % liquid chromatography method
Related Topics:	Hexaphenyl ditin Dinitramine Bidiazole Ethylenediamine dinitrobenzene Trinitrodiphenylamine diphenyl boron bromide diphenylamine gb Nitrosodiphenylamine Nitrophenylhydrazine Dibromoethylbenzene Dinitramine oxadiazole Analysis method of dinitrobenzene p-bromoisobutylbenzene Benzene Bromine Value Aniline standard Nitroaniline nitro o-dinitrobenzene p-dinitrobenzene detection Analysis of nitrobenzene High-quality dibromoethylbenzene Diphenhydramine Aniline UV Diethylamine nitrate Diphenylamine detection method Nitrobenzene Analysis Pure phenyl bromide Nitramine Diethylamine nitrate nitrobenzeneliquidUV dibromonitrophenol Bromonitrophenol Quaternary Amino Dinitrophenylurea Three 4 aniline detection Bromoform bromide aldehyde Liquid phase aniline p-Bromoaniline Phenylphosphonium bromide Dinitrobenzenesulfuric acid Dinitrobenzene trap method p-Dinitrobenzene method Dinitrobenzene method nbs bromonitrobenzene diphenylamine use 2 4 dinitrophenylhydrazine method Bromine Extractant Benzene Benzene to m-bromoethylbenzene o-Bromoaniline Aniline bromination Bromotriphenylboron Diphenylamine content Nitrobenzene, p-dinitrobenzene detection polybrominated benzidine phenylbromoalkyl The mass spectrum of nitrobenzyl bromide Analysis of diphenylamine Phenyl hypobromite Aniline nitrile bromide Bromotriphenylboron Ethylenediamine cobalt nitrate Analysis of diphenylamine m-Bromoaniline nitrobenzene m-bromophenol Bromoaniline Diphenylamine detection Dinitrobenzene method Bromobenzene Ethylbenzene dibromide Brominated mixed xylenes Bromoformyl o-nitrobenzyl bromide binary nitro compound trimethylaniline bromide Dinitropyrene Diphenylamine treatment Diphenylberyllium Diphenylamine Properties Diphenylamine content detection Bronopol Aniline liquid phase bromoaniline drugs Phenylethyl bromide Propylphenyl bromide GBT23669 GB/T 23669-2009 GB/T 23669-2016 triphenylamine NBS on bromine

《GB/T 23669-20162,6-二溴-4-硝基苯胺》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

Overview of GB/T 23669-2016 Standard

GB/T 23669-2016 "2,6-Dibromo-4-nitroaniline" is China's quality standard for this compound, which is used to regulate its production, testing and application. This article will provide a detailed interpretation from multiple dimensions such as standard background, technical requirements, and testing methods.

Background of Standard Formulation and Technological Evolution

GB/T 23669-2016 replaces the previous GB/T 23669-2009 version. The main improvements include:

Added ash control index: clarified the mass fraction of ash and its determination method.
Modified appearance evaluation method: adjusted from visual observation to a more objective evaluation standard.
Optimization of liquid chromatography detection conditions: The wavelength and mobile phase ratio were adjusted to improve detection accuracy.

Quality requirements and test methods

Item	Indicator	Determination method
Appearance	Yellow powder	Visual method (5.2)
Purity of 2,6-dibromo-4-nitroaniline	≥98.00%	Liquid chromatography method (5.3)
Content of 2,6-dichloro-4-nitroaniline	≤0.05%	Liquid chromatography method (5.3)
Initial melting point of dry product	200.0℃	GB/T 2384
Moisture mass fraction	≤1.0%	Drying method (5.5)
Ash mass fraction	≤0.20%	Ignition method (GB/T 21876)

Implementation suggestions and precautions

1. Quality control: Manufacturers should strictly follow the standard requirements for raw material screening and process monitoring to ensure that the products meet the indicators in Table 1.

2. Inspection rules: In addition to factory inspection, it is recommended to conduct regular re-inspections, especially when there are large batch differences. During re-inspection, samples should be taken from double packaging to ensure the representativeness of the data.

3. Safety and storage: This compound has certain toxicity. Operators should wear protective equipment and ensure that the product is stored in a cool and dry environment, away from fire and high temperature areas.

More samples: JGJ 94-2008 JC/T 2453-2018 GB 50021-2001(2009)

Sample only — not a preview of GB/T 23669-2016