Analytical Reagent[3]
Overview
Analytical Reagent refers to chemicals manufactured to meet high-purity standards for use in analytical procedures. These reagents are essential in laboratories where precise measurements and minimal contamination are critical. The term 'AR Grade' (Analytical Reagent Grade) is commonly used interchangeably. The purity of analytical reagents typically exceeds 99%, with stringent limits on impurities that could interfere with sensitive analyses. They are distinct from industrial-grade or technical-grade chemicals, which may contain higher levels of contaminants. Major producers adhere to international standards such as ACS (American Chemical Society) or Reagent Grade specifications.
Physical and Chemical Properties
The physical and chemical properties of analytical reagents vary significantly depending on the specific compound. Common forms include crystalline solids, powders, or liquids. Key characteristics include consistent composition, stability under standard conditions, and well-documented reactivity profiles. For example, AR-grade sodium hydroxide appears as white pellets with a purity of ≥97%, while AR-grade hydrochloric acid is a clear, fuming liquid with a concentration of approximately 36–38%. Solubility, pH, and reaction kinetics are carefully documented to ensure reproducibility in experiments.
Main Applications
Analytical reagents are indispensable in quantitative and qualitative analysis across industries. They are used in titrations, spectrophotometry, chromatography, and other laboratory techniques. Pharmaceutical labs rely on them for drug formulation testing, while environmental labs use them to detect pollutants. In manufacturing, AR-grade chemicals ensure quality control of raw materials and finished products. Educational institutions also use these reagents for teaching analytical chemistry. Their precision supports compliance with regulatory standards like ISO, USP, or EP monographs.
Safety and Storage
Handling analytical reagents requires adherence to safety protocols outlined in Material Safety Data Sheets (MSDS). Proper PPE (gloves, goggles, lab coats) is mandatory for corrosive, toxic, or reactive reagents. Storage conditions vary: some reagents require desiccators, while others need refrigeration. Light-sensitive reagents (e.g., silver nitrate) are stored in amber bottles, and hygroscopic compounds (e.g., calcium chloride) require airtight containers. Spill kits and ventilation are essential in storage areas. Always segregate incompatible chemicals (e.g., acids and bases) to prevent hazardous reactions.
B2B Procurement Guide
When procuring analytical reagents, prioritize suppliers with certifications (ISO 9001, GMP) and consistent batch-to-batch quality. Request Certificates of Analysis (CoA) specifying purity, impurity profiles, and testing methods. Bulk purchases may offer cost savings but verify shelf-life constraints. For specialized applications, consider custom synthesis or ultra-high-purity grades (e.g., HPLC-grade solvents). Logistics should ensure temperature control and safe transportation. Establish long-term partnerships with suppliers to guarantee reliable supply chains and technical support.
Related Manufacturers
- 主营：--
- 主营：醋酸镍、磷酸氢、氟化锶、粉末分析、化学试剂、分析试剂、醋酸锰、磷酸三钾、白色晶体、草酸铜、无色无味、透明结晶、磷酸三铵、氯化亚铁、白色粉末、无色结晶、通风干燥、粉末干燥、绿色结晶、白色结晶、无水氯化钙、紫红色结晶、磷酸二氢钠、磷酸二氢钾、无定型粉末
- 主营：醋酸钴、硝酸铜、氯化钴、分析纯溴化锌、氯化亚锡、三氯化铁、氯化铁、氟硅酸钠、氧化钴、硫化钠、丙酸钠
- 主营：无水氯化钙、十水碳酸钠、二水氯化钙、试剂级二水氯化钙、无水碳酸钠、黑色碳分子筛、分子筛活化粉、分子筛、碳分子筛、活性氧化铝、偏磷酸
- 主营：除垢剂、碘化钾、活性炭、碘试剂、基准试剂、化学试剂、氯化钠、丙三醇、缓冲剂、硫酸银、二甲亚砜、无水碳酸钠、食品添加剂、二甲基硅油、磷酸二氢钾、l(+)-抗坏血酸、无色透明液体、n-甲基吡咯烷酮
- 主营：氯化镧、锆产品、钴产品、分析纯、稀土盐类
- 主营：乙酸铵、草酸铵、甲酸铵、分析纯、氯化钾、氯化镁、乙酸钾、乙酸钠、醋酸钾、硫酸钠、碳酸钾、磷酸三钾、柠檬酸铵、焦磷酸钠、硫酸亚铁、硫酸镁、磷酸氢二钾、磷酸氢二钠、柠檬酸钾、甲酸钾、碳酸氢钾、磷酸三钠、磷酸二氢钠、硫酸钾、尿素、双乙酸钠
- 主营：溶剂油、120号溶剂油、150号溶剂油、分析纯、718洗网水、PU家具漆稀释剂、洗网水、PCB洗网水、洗枪水、PU稀释剂、慢干水、乙二醇、二甲基甲酰胺、二氯乙烷、甲基异丁基甲酮、丙二醇甲醚醋酸酯、丙二醇甲醚、清洗剂、稀释剂、白电油、二丙酮醇、乙二醇乙醚醋酸酯、二价酸酯、无水乙醇、甲醇、正丁醇
- 主营：硒粉、镍粉、硅粉、分析纯、铜粉、钨粉、二氧化锡、钼粉、锡粉、银粉、碳化钨
- 主营：二甲苯、d40溶剂、苯甲醇、分析纯、白电油、石脑油、清洗剂、水溶肥、d60工业、稀释剂、溶剂油、正丁醇、正辛醇、桶装甲醇、单乙醇胺、辛醇、航空煤油、正辛烷、异丙醇、甲基叔丁基醚、硫酸钙晶须、正己烷、正庚烷、石油醚
- 主营：氧化铬粉、碳化钨粉、碳化钛粉、分析纯、高纯锡粒、金属铜粒、真空镀膜、高纯镍粉、高纯钴粉、金属氧化钴、高纯金属铝粒、高纯无氧铜颗粒
- 主营：抗氧剂BHT、苯磺酸、苯酚磺酸、分析纯、环烷酸铈、N235 萃取剂、C272萃取剂、均苯四甲酸二酐、对苯乙烯磺酸钠、氟化铝、椰油酰胺丙基甜菜碱、甘油三苯甲酸酯
- 主营：碘化钾、剂原料、王浆酸、分析纯、肉桂酸、特戊醛、氰酸钠、己二酸、黄原胶、麝香105、还原红41、辛酸乙酯、油胺原料、柠檬酸钠、癸醛原料、化工原料、丙酸苄酯、甲基磺酸、异丙碘胺、双盐酸肼、碘类原料、有机化工、胍基乙酸、环保原料、防腐原料、苦精原料
- 主营：氯金酸、卡尔费休、乙醇、化学试剂、色谱试剂、异丙醇、药用辅料、依地酸钙钠、碳酸钠、盐酸氨丁三醇、龙胆酸、枸橼酸钠、甲醇、氢氧化钠、钴锰催化剂、硫酸锰、乙腈、助剂、指示剂、醋酸锰、醋酸钴、氨丁三醇、尿素、硼酸
- 主营：异辛醇、乳化剂、乙烯醚、分析纯试剂、醚羧酸、脂肪醇、分散剂、染色助剂、聚乙二醇、异构醇醚、泊洛沙姆、椰油酰胺、基羟乙基、烷基糖苷、特辛基酚、聚氧乙烯、嵌段聚醚、单油酸酯、异构十三醇、丙烯磺酸钠、氢化蓖麻油、丙烯酰胺基、醇醚葡糖苷、低泡渗透剂、甲酯乙氧基、癸基葡糖苷
- 主营：无水乙醇、乙酸乙酯、磷酸、各种化学试剂、甲醇、乙二醇、二氯甲烷、异丙醇、二甲苯、化工原料
- 主营：火山石、吸附竹炭、重晶石粉、分析纯、火山石板、萤石、铁粉、石英砂、硅藻土、氧化镁、松树皮、木粉、玻璃块、氧化钙、高强无收缩灌浆料、火山石粉、陶粒、云母
- 主营：分析纯、高铁酸钾
- 主营：乙二醇、甘油、防冻液、国产分析纯、丙三醇