Overview
Potassium dichromate is an inorganic chemical compound with significant industrial applications. It is known for its bright orange-red crystalline form and strong oxidizing properties. Historically, it was widely used in dyeing and tanning industries, though its use has declined due to environmental and health concerns. Despite its toxicity, potassium dichromate remains essential in certain industrial processes, such as metal surface treatment and analytical chemistry. It is also a standard reagent in laboratories for volumetric analysis due to its stable oxidizing nature.
Physical and Chemical Properties
Potassium dichromate is highly soluble in water, forming an acidic solution that can react with reducing agents. Its crystalline structure is stable under normal conditions but decomposes at high temperatures, releasing oxygen. The compound is non-combustible but can intensify fires by releasing oxygen. As a strong oxidizer, it reacts vigorously with organic materials, making it useful in cleaning and etching metals. Its solubility and reactivity profile make it a versatile chemical, though its hazardous nature requires careful handling and storage.
Main Applications
The primary use of potassium dichromate is in the leather industry for chrome tanning, where it helps stabilize collagen fibers. It is also employed in metal finishing to clean and passivate surfaces, particularly in aerospace and automotive sectors. In photography, it serves as a sensitizer for gelatin coatings. Additionally, it is used in wood preservation and as an oxidizing agent in organic synthesis. Despite its declining use in some areas due to regulatory restrictions, it remains critical in niche industrial applications.
Safety and Storage
Potassium dichromate is classified as a carcinogen and poses severe health risks, including respiratory issues, skin burns, and potential kidney damage. Proper personal protective equipment (PPE), such as gloves and goggles, is mandatory during handling. Storage requires separation from reducing agents and organic materials to prevent violent reactions. Containers should be labeled clearly, and spills must be neutralized with reducing agents like sodium metabisulfite. Regulatory compliance, including OSHA and EPA guidelines, is essential for safe usage.
B2B Procurement Guide
When procuring potassium dichromate, prioritize suppliers with certifications like ISO 9001 and REACH compliance. Verify the material safety data sheet (MSDS) to ensure proper handling instructions. Bulk purchases may require hazardous material transport documentation. Consider alternatives like potassium permanganate for less toxic applications. Pricing varies by purity (typically 99% or higher) and order volume. For reference, technical-grade potassium dichromate ranges from $5-$15 per kg. Always confirm lead times and storage recommendations with suppliers.
Related Manufacturers
- 主营：多聚甲醛、正硅酸乙酯28 40、正十二烷、二甲苯、四氢呋喃、液体丁腈橡胶、乙二醛、四氯乙烯、三氯乙烯、环己酮、环己胺、二甲基甲酰胺、二甲基乙酰胺、航空煤油、石油醚、糠醛、亚氯酸钠、铬酸酐、顺酐、保险粉、无水乙醇、异丙醇、二氯甲烷、醋酸乙酯、醋酸甲酯
- 主营：除油剂、乙酰氯、凡士林、酒石酸钾钠、硫酸铜、异丙醇、三乙胺、漂白粉、丙烯酸、硬脂酸、制冷剂、石油醚、清洗剂、铭酸酐、脱硝剂、二氯甲烷、涂料油墨、正丁酰氯、盐酸羟胺、印染助剂、四氢呋喃、环氧丙烷、偏硅酸钠、过硫酸钠、氢氧化钾、橡胶助剂
- 主营：液态状、增湿剂、硝酸铝、酒石酸钾钠、防霉剂、84漂白液、净化处理、玉米淀粉、轻质纯碱、硬化促进剂、硝酸铁工业、食品添加剂、生长调节剂、净水絮凝剂、杀菌灭藻剂、清洁剂杀虫剂、合成材料助剂、电镀陶瓷纺织
- 主营：石蜡油、氯化石蜡、乙酰乙酸甲酯、高铁酸钾、十二烷基苯磺酸、香精、柔顺剂、表面活性剂
- 主营：聚丙烯酰胺、泥浆沉淀剂、润滑剂、腐殖酸钾、聚丙烯酸钾、纤维素、钻井液、化学泥浆、褐煤树脂、k31防塌剂、磺化沥青粉、酚醛树脂、留助滤剂、803堵漏剂、制香粘合剂、高温滤失剂、广谱护壁剂、污水处理剂、聚丙烯酸钠、植物胶、黄原胶、聚合氯化铝、酰胺阴离子、造纸分散剂
- 主营：柠檬酸镁、柠檬酸锌、柠檬酸铜、苹果酸钾用途、柠檬酸钙、柠檬酸氢二铵
- 主营：多聚甲醛、环己胺、正硅酸乙酯28 40、酒石酸钾钠、正十二烷、异丙醇、无水乙醇、铬酸酐、亚氯酸钠、二甲基甲酰胺、硫酸羟胺、戊二酸二甲酯、邻苯二甲酸二乙酯、二甲苯、二氯甲烷、环己烷、四氯乙烯、环己酮、环氧氯丙烷、甲醇、甲酸、乙腈、苯酚、乙二醇乙醚醋酸酯、醋酸丁酯
- 主营：生化黄腐酸钾、矿源黄腐酸钾、矿源黄腐酸钾浓缩原液、矿源黄腐酸钾有机肥、矿源黄腐酸钾复合肥、矿源黄腐酸钾叶面肥、黄腐酸钾液体肥、叶面肥、肥料冲施肥
- 主营：防风固沙剂、赛力旺液体肥、减瑞克生物肥、矿源黄腐酸钾、木醋液、赛力旺木醋液、减瑞克液体肥、固沙剂
- 主营：干燥机、混合机、制粒机、粉碎机、耙式干燥机、双锥回转真空干燥机、真空耙式干燥机、真空干燥机、沸腾制粒机、沸腾干燥机、闪蒸干燥机、流化床干燥机、离心喷雾干燥机、三维混合机、方锥混合机、摇摆制粒机、30B粉碎机、方锥型混合机、摇摆颗粒机、三维运动混合机、旋转制粒机、振动流化床干燥机、旋转闪蒸干燥机、热风循环烘箱、空心桨叶干燥机
- 主营：18908-66-2、癸甲氯铵、咪唑烷酮、山梨酸钾、二异丁腈、饲料添加剂、分散剂工业、柠檬酸三丁酯、聚乙烯吡咯烷、二甲基溴化铵
- 主营：二丙二醇、二甘醇、甲基丙二醇、柠檬酸钾、异辛醇、片碱、草酸、氢氧化钾、氨基磺酸、三羟甲基丙烷
- 主营：聚苯胺、脯氨酸甲酯盐酸盐、苄基三甲基氯化铵
- 主营：乙二醇、柠檬酸、山梨醇、酒石酸钾钠、酒石酸、硬脂酸、增稠剂、二甘醇、防腐剂、工业纯碱、新戊二醇、1.4丁二醇、食用纯碱、aes洗洁精、碳酸氢钠、无水硫酸钠、活性稀释剂、葡萄糖酸钠、表面活性剂、三羟甲基丙烷、甘油
- 主营：甘氨酸、水苏糖、除涩剂、硫酸钾、红曲黄、儿茶素、米糠素、甘露醇、硫酸锰、他拉胶、一水物、酪蛋白、磷酸氢、鱼油粉、牛磺酸、褪黑素、碳酸镁、赖氨酸、纤维素、刹口剂、卡拉胶、泡多源、柚苷酶、乳糖酶、脯氨酸、筋力源