Overview
Dimethyl sulfide (DMS) is an organosulfur compound with the chemical formula (CH3)2S. It is a naturally occurring compound, notably produced by marine phytoplankton and bacteria, contributing to the characteristic 'smell of the sea.' Industrially, DMS is synthesized for various applications due to its reactivity and volatility. DMS is a key intermediate in the global sulfur cycle and plays a role in atmospheric chemistry. Its distinctive odor, often described as cabbage-like or rotten, makes it easily detectable even at low concentrations. Despite its unpleasant smell, it is used in controlled industrial processes and as a flavoring agent at trace levels.
Physical and Chemical Properties
Dimethyl sulfide is a colorless, volatile liquid at room temperature with a boiling point of 37-38°C. It has a density of 0.846 g/cm³ and is slightly soluble in water but mixes well with most organic solvents. Its low boiling point makes it highly evaporative, requiring careful handling to prevent loss or accidental release. The compound is flammable, with a flash point below room temperature, and forms explosive mixtures with air. It reacts with strong oxidizing agents, halogens, and acids, necessitating proper storage and handling protocols to avoid hazardous reactions.
Main Applications
DMS is primarily used in petrochemical refining as a sulfiding agent to activate catalysts in hydrodesulfurization processes. It is also a precursor in the synthesis of other sulfur-containing chemicals, such as dimethyl sulfoxide (DMSO) and methionine, an essential amino acid used in animal feed. In the food industry, DMS is employed as a flavoring agent in very low concentrations to impart savory or seafood-like notes. Additionally, it is studied for its role in environmental science, particularly in cloud formation and climate regulation due to its atmospheric oxidation products.
Safety and Storage
Due to its flammability and volatility, DMS must be stored in tightly sealed containers in cool, well-ventilated areas away from ignition sources. Proper grounding and bonding are essential to prevent static discharge during transfer. Personal protective equipment (PPE), including gloves and goggles, should be worn when handling the chemical. Exposure to DMS can cause irritation to the eyes, skin, and respiratory tract. In case of spills, evacuate the area and use appropriate absorbents. Regulatory guidelines, such as OSHA and GHS classifications, should be followed to ensure safe workplace practices.
B2B Procurement Guide
When procuring dimethyl sulfide, buyers should prioritize suppliers with certifications such as ISO or GMP to ensure product quality and consistency. Key considerations include purity grades (typically 98-99.5%), packaging options (drums or bulk shipments), and compliance with transportation regulations for flammable liquids. Price negotiations should account for order volume and delivery terms. Buyers are advised to request safety data sheets (SDS) and conduct audits of supplier facilities to verify storage and handling practices. Long-term contracts may offer cost advantages for regular industrial users.
Related Manufacturers
- 主营：环氧丙烷、异戊酮、乙醇酸钠、二异丁基酮、二氯二乙醚、六甲基磷酰三胺、四聚丙烯 十二烯、二甲基一氯硅烷、一甲基三氯硅烷、十氢萘、巯基乙酸、3-溴-4-氟苯甲腈、硫代乙酸、2-戊酮酸 2-氧代、对氯三氟甲苯、环戊甲酸、氯磺酸、氯代叔丁烷 叔丁基氯、甲硫醇、苄硫醇 α-甲苯硫醇、三氟氯乙烯
- 主营：四氢噻吩、乙硫醇、氧化三甲胺、三甲基戊烷、二甲基亚砜、对叔丁基邻苯二酚、叔十二硫醇、二甲基二硫醚、环丁砜、正己烯、单氰胺、氟硅酸、氯乙酸、氯乙酸钠、叔丁硫醇、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
- 主营：多聚甲醛、正硅酸乙酯28 40、四氢呋喃、正十二烷、二甲苯、乙二醛、二甲基甲酰胺、二甲基乙酰胺、二氯甲烷、液体丁腈橡胶、四氯乙烯、三氯乙烯、环己酮、环己胺、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、醋酸乙酯、醋酸甲酯
- 主营：增塑剂、顺酐、环丁砜、二甲基亚砜、二甲基二硫醚、二辛酯、叔十二硫醇、乙二醛、赋臭剂、四氢噻吩加臭剂、环戊烷、塑化剂、石油醚、异丁醇、氯化苄、硬脂酸钙、树脂涂料、四氢噻吩、化学试剂、国标染料、氯乙酸、硬脂酸锌、异辛烷、橡胶塑料
- 主营：2-苯甲酰苯甲酸、氢氧化钾、过硫酸铵、二氯甲烷、氨基磺酸、冰醋酸、醋酸乙酯、片碱、柠檬酸、硼酸、草酸、苯酚、三乙胺、异丙醇、甘油、小苏打、大苏打、纯碱
- 主营：二乙二醇丁醚、二甲基乙酰胺、碳酸二甲酯、乙二醇二醋酸酯、丙二醇二醋酸酯、邻苯二甲酸二辛酯、N-甲基吡咯烷酮、顺酐、溶剂油
- 主营：甘氨酸、水苏糖、阻燃剂、硫化促进剂J、硫酸锌、硫酸锆、硫酸锂、硫酸锶、硫酸锰、铝酸锌、1680-21-3、牛磺酸、褪黑素、磷酸铁、丙酸铵、苏云金、碳酸镁、麝香酮、肉桂醛、磷酸铝、王浆酸、椰油胺、赖氨酸、增塑剂、浸膏粉、乙氧基
- 主营：杜仲素、对位酯、丙烯酸酯、二氧化硫脲、二苯基硅二醇、乙基麦芽酚、饲料添加剂、油酸基硬脂酸
- 主营：120号溶剂油、航空煤油、260号溶剂油、异构十二烷、二氯甲烷、甲基丙烯酸缩水甘油酯、碳酸二甲酯、甲基苯骈三氮唑、甲基丙烯酸、二月桂酸二丁基锡、二茂铁、邻苯二甲酸二辛酯、三氯乙烯、四氯乙烯、正十四烷、丙烯酸、60号全精炼石蜡、顺酐、苯酐、80号微晶蜡、精萘、硫脲、莫卡、抗氧剂BHT501、亚磷酸
- 主营：气体检测仪、气体传感器、微型空气站、硫化二甲基、恶臭电子鼻、便携式气体检测仪、气体报警器、气体检测模块、气体探测器
- 主营：固体酸催化剂、重组胶原蛋白、硅油、特种硅油、聚硅氮烷、硼酸铝晶须、碳化硅晶须、t-BAMBP萃取剂、全氟三丁胺
- 主营：洗涤剂、发泡剂、缓蚀剂、二胺四乙酸、三甲基氯化铵、渗透剂、防冻液、保湿剂、碳酸钠、清洗剂、沉淀剂、无水芒硝、无水乙醇、印刷溶剂、环保溶剂、春金甘油、洗涤建筑、水泥助磨剂、食品添加剂、食品增稠剂、表面活性剂、混凝土缓凝、酸度调节剂、粒状氢氧化钠、金属表面处理
- 主营：粘合树脂、橡胶流动剂、橡胶消泡剂、橡胶分散剂、橡胶增粘树脂
- 主营：冰醋酸、三甲胺、片碱、二甲胺水溶液、DMF二甲基甲酰胺、二氯乙烷、二氯甲烷、二甲苯、丙二醇、二甲基乙酰胺、草酸、醋酸乙酯、过碳酸钠、氨基磺酸、油酸钠、苯酚、双酚A、环氧丙烷、硫酸铜、黄丹粉、红丹粉、四氧化三铅、三乙醇胺、四氯乙烯、一水柠檬酸
- 主营：米淀粉、催化剂、防水剂、十二烷、乙二醛、精甲醇、氯丙烯、干基钒、灭火剂、碳酸镍、清洗剂、酰化剂、异戊醇、氯化锌、软化剂、异丙醇、初油酸、氧化锌、杀菌剂、溴乙烷、氧化铅、固化剂、活性炭、甲酸钾、甲酸钠