HG/T 4246-2011
Abolished2,5-Dichloronitrobenzene
2，5-二氯硝基苯
Catalogue
前言 → 1 范围 → 2 规范性引用文件 → 3 要求 → 4 安全信息 → 5 采样 → 6 试验方法 → 7 检验规则 → 8 标志、标签、包装、运输和贮存 Foreword → 1 Scope → 2 Normative References → 3 Requirements → 4 Safety Information → 5 Sampling → 6 Test Methods → 7 Inspection Rules → 8 Marking, Labeling, Packaging, Transport and Storage
Scope
This standard specifies the requirements, safety information, sampling, test methods, inspection rules, and marking, labeling, packaging, transport and storage of 2,5-dichloronitrobenzene. This standard is applicable to the quality control of 2,5-dichloronitrobenzene products.
本标准规定了2，5-二氯硝基苯的要求、安全信息、采样、试验方法、检验规则以及标志、标签、包装、运输和贮存。本标准适用于2，5-二氯硝基苯的产品质量控制。
Normative References
Keywords
Application Summary AI generated
Chemical manufacturers, dye producers, and quality inspection agencies use this standard to regulate the production and testing of 2,5-dichloronitrobenzene. It ensures that key parameters such as purity and crystallization point meet specified requirements, thereby supporting consistent quality in downstream dye synthesis. By providing clear safety information and packaging/transport guidelines, the standard helps prevent chemical accidents and protects both personnel and the environment.
化工企业、染料生产商和质量检验部门使用该标准来规范2,5-二氯硝基苯的生产和检验。该标准确保产品纯度、结晶点等关键指标符合要求，保障下游染料合成质量。它通过明确安全信息和包装运输要求，有助于防止化学品事故，保护人员和环境安全。
AI Summary AI generated
This standard specifies the technical requirements, safety information, sampling, test methods, inspection rules, and marking, packaging, transport and storage for 2,5-dichloronitrobenzene. The product is classified into first-grade and qualified grade, with key indicators including appearance (pale yellow crystals), dry crystallization point (≥52.8°C/≥52.0°C), purity (≥99.50%/≥99.00%), and organic impurity content. Test methods include gas chromatography for purity and impurities, and moisture determination per GB/T 2386. Safety-wise, the substance is a Class 6.1 toxic material requiring strict dangerous goods handling. The standard is intended for quality control by dye intermediate manufacturers.
本标准规定了2,5-二氯硝基苯的技术要求、安全信息、采样、试验方法、检验规则及标志包装运输贮存。产品按质量分为一等品和合格品，关键指标包括外观（淡黄色结晶）、干品结晶点（≥52.8℃/≥52.0℃）、纯度（≥99.50%/≥99.00%）及有机杂质含量。试验方法采用气相色谱法测定纯度及杂质，水分按GB/T 2386测定。安全方面，该物质为6.1类毒性物质，需严格按危险货物管理。标准适用于染料中间体生产企业的质量控制。
Key Sentences extracted from text
本标准规定了2，5-二氯硝基苯的要求、安全信息、采样、试验方法、检验规则以及标志、标签、包装、运输和贮存。
2，5-二氯硝基苯的质量要求应符合表1的规定。
根据GB 12268-2005，2，5-二氯硝基苯为6.1类毒性物质，危险品编号为CN：61679。
采用毛细管柱气相色谱法，分离2，5-二氯硝基苯及其有机杂质，2，5-二氯硝基苯纯度及有机杂质的含量采用峰面积归一化法测定。
2，5-二氯硝基苯是毒性物质，应按GB 15603及相关规定密闭贮存于阴凉干燥并具有良好通风的库房内，切勿暴晒和雨淋，不可与易燃物放在一起，并远离火源和热源。
This standard specifies the requirements, safety information, sampling, test methods, inspection rules, and marking, labeling, packaging, transport and storage of 2,5-dichloronitrobenzene.
The quality requirements of 2,5-dichloronitrobenzene shall comply with the provisions of Table 1.
According to GB 12268-2005, 2,5-dichloronitrobenzene is a Class 6.1 toxic substance, with dangerous goods number CN: 61679.
A capillary column gas chromatography method is used to separate 2,5-dichloronitrobenzene and its organic impurities; the purity of 2,5-dichloronitrobenzene and the content of organic impurities are determined by the peak area normalization method.
2,5-Dichloronitrobenzene is a toxic substance and shall be stored in a closed, cool, dry, and well-ventilated warehouse in accordance with GB 15603 and relevant regulations; avoid exposure to sunlight and rain, do not store together with flammable materials, and keep away from fire and heat sources.