Oil Dyes
Overview
Oil dyes are synthetic or organic compounds designed to impart color to petroleum-based products like fuels, lubricants, and industrial oils. They serve functional roles (e.g., differentiating fuel grades) and aesthetic purposes. Commonly used in automotive and aerospace industries, these dyes must meet stringent stability and solubility standards to avoid interfering with product performance. Their development dates back to the early 20th century, with modern variants offering enhanced environmental compatibility. Regulatory bodies often mandate specific dyes for tax demarcation (e.g., dyed diesel) or safety labeling, making them critical for compliance in B2B supply chains.
Physical and Chemical Properties
Oil dyes exhibit high solubility in non-polar solvents, ensuring uniform dispersion in hydrocarbon matrices. Key properties include thermal stability up to 200°C and resistance to oxidation, which prevent degradation in high-temperature applications like engine oils. Liquid dyes are typically pre-dissolved in carrier solvents for ease of blending. Pigment-based variants may use azo or anthraquinone structures, offering vibrant hues and lightfastness. However, their chemical inertness is crucial to avoid reactions with fuel additives or metal surfaces. Density and viscosity align with host oils to prevent sedimentation or phase separation.
Main Applications
In the automotive sector, oil dyes mark fuel types (e.g., red for off-road diesel) to prevent misuse. Lubricant manufacturers use them for brand differentiation and leak detection. Industrial applications include coloring transformer oils for safety visibility and tracing fluid pathways in machinery. The marine and aviation industries rely on dyes to identify hydraulic fluids. Specialty dyes with UV fluorescence are employed in leak detection systems. Regulatory-driven usage, such as EU tax markers, dominates B2B demand, with custom formulations for niche applications like synthetic oils.
Safety and Storage
Handling oil dyes requires PPE like gloves and goggles due to potential skin irritation or toxicity. Flammable solvent-based dyes necessitate fireproof storage, while powders demand dust control measures. SDS sheets must be reviewed for specific hazards (e.g., carcinogenic compounds like certain azo dyes). Storage temperatures should remain stable (15–25°C) to prevent crystallization or solvent evaporation. Containers must be tightly sealed and labeled per GHS standards. Spill protocols include using absorbents and avoiding water runoff, as some dyes may persist in the environment.
B2B Procurement Guide
Buyers should prioritize suppliers with ISO 9001 certification and batch-to-batch consistency guarantees. Key selection criteria include dye concentration (typically 0.001–0.1% w/w), compatibility with base oils, and regulatory approvals (e.g., ASTM D975 for fuels). Bulk purchases (drums or totes) reduce costs, but sample testing is advised to verify performance. Lead times vary; specialty dyes may require 4–6 weeks. Negotiate MOQs and assess logistics for hazardous material shipping. Digital tools like colorimeters ensure quality control upon delivery.
Related Manufacturers
- 主营：四氢噻吩、三甲基戊烷、乙硫醇、二甲基亚砜、氧化三甲胺、环丁砜、正己烯、单氰胺、氟硅酸、氯乙酸、氯乙酸钠、叔丁硫醇、对叔丁基邻苯二酚、氟硼酸、溶剂油、乙硫氨酯、苯扎溴铵、三聚氯氰、亚磷酸三苯酯、对氟苯胺、正己烷、邻苯基苯酚、苯酚、叔十二硫醇、二甲基二硫醚
- 主营：三硫代碳酸钠、红色素-16、聚乙烯亚胺、热压敏染料、三乙二醇二异辛酸酯、巯基苯并噻唑钠、L-丙交酯、乙交酯、石油酯-T50、多元醇苯甲酸酯、光稳定剂、高分子降解材料
- 主营：阻燃剂、拉那白、牛儿酮、海藻糖、热敏蓝、萘磺酸、氯菊酯、硫酸锌、催化剂、杨梅酯、檀香醚、聚醚胺、吸收剂、脂檀油、苍术素、羟钴胺、转移剂、溶剂绿、麝香酮、王浆酸、芬多精、纤维素、新戊酯、王冠醚、遮甜粉
- 主营：大红4bs、颜料黄、锌铁黄、棕染料、藏蓝d-r、颜料棕、还原绿、溶剂橙、钛铬棕、溶剂红、兰耐brn、还原黑、直接橙、硫化兰、钛铬黄、大红f2g、溶剂蓝、直接绿、大红4be、黄棕d3g、溶剂绿、直接蓝、溶剂黑、溶剂黄、还原棕
- 主营：全氟三丁胺、氢化镁、碳纳米管导电浆料、羟基磷灰石、311-89-7、提取物、树脂、硅烷、萃取剂
- 主营：染料色素、进口助剂、颜料、化妆品原料
- 主营：优氯净、甘氨酸、切削液、氢氧化钡油品添加剂、二萘酚、桦焦油、甘露醇、水杨酸、硫酸锰、平平加、肌氨酸、磷酸氢、磷酸镁、牛磺酸、磷酸铁、铵明矾、蛋白胨、碳酸镁、磷酸铝、戊二醛、氯化锰、纤维素、黄糊精、硫化钠、硫化钡、木质素
- 主营：蛋白栋、DOP、玻璃粉、氢氧化钡油品添加剂、福美钠、黄糊精、硫酸钡、漂白粉、漂粉精、强氯精、优氯净、早强剂
- 主营：元明粉、丙酸钙、玻璃粉、氢氧化钡油品添加剂、冰醋酸、液压油、浮选油、草酸铵、生石灰、硅酸钠、单宁酸、胶泥粉、降阻剂、冰晶石、二萘酚、促进剂、熟石灰、三甘醇、大豆蜡、泡花碱、铵明矾、石英砂、丙二醇、edta四钠、edta二钠、维生素b1
- 主营：聚维酮、吗啉、乙二醇丁醚、聚乙烯吡咯烷酮、甲基异丙基酮、甲基吡咯烷酮、三乙醇胺硼酸酯、甲基叔丁基醚、正戊烷、三元酸、邻氯苯甲酰氯、司盘、吐温、松节油、环氧树脂、苯甲醇、二异丁基酮、二甲基乙酰胺、乙烯基吡咯烷酮
- 主营：絮凝剂、除镍剂、除铜剂、污水处理材料、净凡高效除磷剂、碱性除氟剂、破乳剂、脱色剂、阻垢剂、清洗除垢剂
- 主营：黄糊精、松醇油、氨基磺酸、氢氧化钡油品添加剂、戊二醛、五氧化二钒、福美钠、二号浮选油、牛油脂肪酸、漂粉精、氧化铅、九水硫化钠、氨基锂、次氯酸钙、蛋白胨、羟基乙叉二膦酸、苯甲醇、苯亚磺酸钠、氯铂酸、硅酸镁铝、草酸亚铁、草酸钛钾、甲基磺酸铋、牛骨蛋白胨、苄基胂酸、氟化氢钾
- 主营：硫酸烟酰苯胺、矮壮素、离子液体、蓖麻油酸、椰油酰氯、4-滴钠盐、甘油磷酸酯、咪唑、亚麻酸乙酯、菜籽油甲酯、氟甲基磺、DL-泛酰酸内酯、聚丙烯酸树脂IV、海因环氧树脂、2-辛烯基琥珀酸酐、4-二羟基蒽醌隐、5-二甲基吡唑
- 主营：碳酸铝、防霉剂、氯化铋、柴油油品染色剂、氮化硅、破乳剂、硅酸镁、磷酸铝、化学试剂、抗静电剂、乙酸乙酯、氢氧化镁、焦磷酸钠、干燥通风、次磷酸镁、氯化氢乙醇、氯化氢甲醇、聚丙烯酸钾、闪点提高剂、柴油降凝剂、硫代硫酸铵、聚丙烯酰胺、多聚磷酸钠、25公斤纸板桶、硫代乙醇酸钠、高分子絮凝剂
- 主营：固体酸、脱色粉、透明度、去除油品、油品气味、清洗剂、改善柴油、二环己胺、油渣酸渣、低温流动、渣沉降剂、提高柴油、抗氧化剂、品脱色过滤、防止变色剂、过滤沙伴侣、柴油降凝剂、动力提升剂、除臭去味剂、酸渣分离剂、脱色剂脱胶剂、免酸洗脱色剂、调色剂染色剂