Principle DPD
Overview
Principle DPD, chemically known as N,N-Diethyl-p-phenylenediamine, is a critical reagent in analytical chemistry, primarily used for detecting chlorine levels in water. Its high reactivity with free and combined chlorine makes it indispensable in water treatment and environmental monitoring. Developed for precision, Principle DPD provides reliable results in both laboratory and field settings. Its formulation ensures minimal interference from other water constituents, making it a preferred choice for accurate chlorine measurement.
Physical and Chemical Properties
Principle DPD appears as a white to off-white crystalline powder with a molecular weight of 164.25 g/mol. It is soluble in water and common organic solvents, facilitating its use in various testing protocols. The compound exhibits stability under recommended storage conditions but degrades upon prolonged exposure to light or moisture. Its melting point ranges between 50-55°C, and it reacts selectively with chlorine to produce a colorimetric change, which is measurable spectrophotometrically.
Main Applications
Principle DPD is predominantly used in water quality testing to measure free and combined chlorine concentrations. It is a standard reagent in municipal water treatment plants, swimming pool maintenance, and industrial wastewater monitoring. Beyond chlorine detection, it finds applications in research laboratories for studying oxidative processes and disinfectant efficacy. Its reliability and ease of use have established it as a cornerstone in environmental and public health testing protocols.
Safety and Storage
Handling Principle DPD requires precautions to avoid health risks. Protective equipment such as gloves and goggles should be worn to prevent skin and eye contact. Inhalation of dust should be avoided by working in well-ventilated areas. Storage conditions are critical for maintaining reagent integrity. Principle DPD should be kept in a cool, dry place, shielded from light and moisture. Properly sealed containers are recommended to extend shelf life and ensure consistent performance in testing applications.
B2B Procurement Guide
Industrial buyers should prioritize suppliers who provide detailed certificates of analysis, including purity and shelf life information. Bulk purchases may offer cost advantages, but storage capacity must align with usage rates to prevent degradation. Verification of supplier compliance with ISO or other relevant standards is essential. Buyers should also consider logistical factors, such as packaging and shipping conditions, to ensure the reagent arrives in optimal condition for immediate or future use.
Related Manufacturers
- 主营：镀锌卷、冷轧卷板、镀铝硅卷板、酸洗板卷、汽车钢、高强钢、冷轧镀锌复相钢、冷轧镀锌双相钢、汽车用双相钢、电镀锌卷板、热轧卷板、锌铁合金板卷、镀铝锌板卷、镀锌铝镁、复相钢、吉帕钢
- 主营：宝钢酸洗卷板、宝钢冷轧卷板、宝钢镀锌卷板、宝钢镀铝锌、宝钢电镀锌、宝钢电解板、镀铝镁锌、鞍钢冷轧盒板、马钢酸洗卷板、马钢镀锌卷、首钢镀锌卷、首钢酸洗卷、冷轧卷板、镀锌卷板、酸洗卷板、镀铝锌卷板、电镀锌卷板、武钢镀锌板、武钢冷轧卷板、鞍钢镀锌卷板
- 主营：电镀锌、热镀锌、电工钢、镀铝锌、汽车钢、冷轧板、热轧酸洗板卷
- 主营：汽车钢、冷轧板、冷轧卷、酸洗板卷、冷轧钢板、汽车冲压板、汽车门锁用料、冷轧碳酸结构钢、电力机柜专用板
- 主营：镀锌卷、镀锌板、冷轧卷、冷轧板、酸洗卷、酸洗板、热轧酸洗卷、酸洗汽车钢、镀铝锌板、锌铁合金板、冷轧汽车钢板、镀锌汽车钢板、冷轧高强钢、冷轧深冲料、冷轧结构用钢、镀铝板、硅钢板、镀铝硅、热轧高强钢、镀铝卷、锌铁合金卷、热轧卷
- 主营：汽车钢、冲压板、镀锌卷、高碳钢、工业钢材、酸洗板卷、冷轧卷板、定扎带钢、冷轧板卷、钢材卷板、镀铝锌卷板、冲压镀锌板、热镀锌铁合金
- 主营：镀锌卷、镀锌板、冷轧卷、冷轧板、冷轧板价格、镀锌板价格、酸洗卷、酸洗板、酸洗板价格、热轧酸洗卷、酸洗汽车钢、镀铝板、镀铝卷、锌铁合金板、锌铁合金卷、船板、镀铝锌板、镀铝镁锌板、镀铝镁锌卷、汽车钢、热轧卷、热轧板、热轧、镀铝锌卷
- 主营：冷轧卷、冲压冷板、镀锌板卷、275克锌铝镁板、冷成型RECC、正品冷轧余卷、冷板SPCC、冷轧卷板、冷轧盒板ST12、鞍钢冷轧盒板、镀锌板、镀锌卷板、镀锌钢卷、镀铝锌钢板、镀铝锌卷板、敷铝锌板、酸洗钢板、酸洗板、酸洗钢卷、高强汽车酸洗钢、热轧钢板Q235B、热轧锰板Q355B、锌铝镁板、XG800中厚钢板、纯铝板铝棒
- 主营：高强钢板、宝钢镀锌、宝钢冷轧卷、汽车钢、冷轧高强钢、宝钢酸洗、高强汽车钢、SPFH590、HC500LA、锌铝镁钢板、宝钢冷轧、酸洗板、镀锌高强钢、高锌层镀锌板、耐指纹板、高强酸洗板卷、酸洗卷、镀锌汽车钢、深冲钢板、冲压拉伸钢带、深冲带钢
- 主营：精冲钢、合金钢、弹簧钢、高碳钢、汽车钢、低碳钢、工具钢、刀具钢、冷轧板、双相钢
- 主营：无取向电工钢、取向电工钢、普冷、镀锌、彩涂、酸洗、热轧
- 主营：彩钢瓦、镀锌卷、采光板、pc阳光板、阳光板瓦、聚酯彩钢卷、氟碳彩钢卷、光伏立柱、高耐候彩钢卷、轨道建筑钢结构、楼承板、镀锌CZ型钢、镀锌带钢、镀锌打包带、免浇筑楼承板、镀铝锌卷、锌铝镁卷、锌铝镁带钢、镀锌几字型钢、纳米彩钢板、马口铁、镀锡板、铝镁锰板、打包带、不锈钢排水沟
- 主营：汽车结构钢、汽车高强钢、冷轧双相钢、酸洗板材、热轧 开平板、镀锌板卷
- 主营：电镀锌、板可卷、qste380tm、批量试、汽车钢、冷轧板、板卷皆、双相钢、合金板、酸洗板、冲压板、镀锌板、小批量、定尺加、qste340tm、vw50065hr2、vw50065cr2、vw50065cr3、vw50065cr4、vw50065cr5、vw50065cr6、vw50065cr1、iso3754cr5、bhc180y290t、en10130dc03
- 主营：汽车钢、冷轧板、镀锌板、热轧酸洗板