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#aromatichydrocarbons
mitivy · 1 year
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CAS NO.99-97-8 N.N-Dimethyl-P-Toluidine/ 4,N,N-Trimethylaniline supplier in China/sample is free/DA 90 DAYS
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biophytopharm · 5 years
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The Aromatic Still Room
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The Aromatic Still Room
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Aromatic Still Room As I begin work on converting an old workshop on my property into my very own aromatic still room, I began to think about the origins of the still room and how various versions of it have been used back in time. Here is a fun look at aromatic still rooms from the past, and what was involved, before the big reveal on my own still room later this spring! Ancient Roman Still Rooms Both the ancient Greeks and Romans were frequent users of natural plant oils and used them for many occasions, including bathing and banquets, as well as for medicinal purposes. In Pompeii, there is much evidence, preserved in the lava of the eruption of Vesuvius in 79 A.D., to suggest that many herbs and plants were in evident use. These plants and herbs included many common names such as rose (Rosa x damascena), lavender (Lavandula angustifolia) and rosemary (Rosmarinus officinalis). There are written records which show ingredients of some perfumes and oils which were in popular use at that time. Evidence has also been uncovered in the archaeological excavations of Pompeii of perfumery making houses and early forms of “still rooms.” How Early Perfumes and Plant Medicines Were Made Early perfumes were made of purely natural ingredients unlike many synthetic brand perfumes today; flower petals, plant seeds, and tree bark were all combined with naturally fragrant resins and gums. The process of making perfumes altered over the years; however, early ancient perfumes were simply made and were called unguents. Unguents were body perfumes and were made by immersing the plant material in a fat or oil base; this process was called enfleurage. Similarly, plant oils used for medicinal purposes were also made this way; today many plant oils are commonly known as essential oils. The Origins of the European Still Room The still room became commonplace in the sixteenth century and by the eighteenth century, many large European country houses had their own still room. In the still room, aromatic plant material was prepared for cosmetic, medicinal and culinary uses, using the plants, flowers, and herbs found on the country estate. The still room was firstly used for the making of remedies for medicinal and hygienic purposes and secondly used to make culinary oils and wines. Natural Remedies and Oils Made in the Still Room The still room was also a place to make perfumes, soaps, candles, fragrant waters, home remedies, cosmetics, potpourri, and moth repellents; however, even fragrant perfumes had many beneficial medicinal properties due to the natural plant materials from which they were made. Many medicinal home remedies were made from common herbs and plants such as peppermint (Mentha x piperita), fennel (Foeniculum vulgare) and rose (Rosa x damascena). Still Room Aromatic Recipes In the still room, roses were often used to make flower waters; lavender and other fragrant herbs were used to scent linen and clothes. Myrtle flowers were used to make a skin tonic named Angel Flower Water. It was common to sprinkle scented water on the floors of a house too; lemon balm (Melissa officinalis) leaves were used as a furniture polish for oak. The still room was initially attended by a still room maid, then later in time, by the lady of the house herself. The still room was a place for many European aromatic home remedies up until the nineteenth century when synthetically engineered materials emerged. The Still Room Today The still room, to my mind, is enjoying a popular comeback recently among artisan distillers, herbalists, plant lovers, and, to some extent, aromatherapists. Although today’s still room may not be as eloquently designed as those of European Country houses of the past, the distilling of one’s own aromatic plants and herbs, direct from the garden or countryside, is the same process. And taking plants direct from the garden to the still and distilled into your own aromatic remedy is about as close to nature as it gets! amzn_assoc_placement = "adunit0"; amzn_assoc_search_bar = "true"; amzn_assoc_tracking_id = "gardensnurs0b-20"; amzn_assoc_search_bar_position = "bottom"; amzn_assoc_ad_mode = "search"; amzn_assoc_ad_type = "smart"; amzn_assoc_marketplace = "amazon"; amzn_assoc_region = "US"; amzn_assoc_title = "Shop Related Products"; amzn_assoc_default_search_phrase = "Aromatic Still Room"; amzn_assoc_default_category = "All"; amzn_assoc_linkid = "b1dd501d4a89ec3272b926f2f0c3466b"; Follow us: Facebook, Twitter, Instagram, Pinterest (adsbygoogle = window.adsbygoogle || ).push({}); Read the full article
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appliancesreviews · 5 years
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Features of the barbecue grills
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Barbecue or BBQ grill is the prototype of all modern grills. This method of cooking meat was invented more than 500 years ago by the Indians of the Dominica Island. They roasted meat over the coals, placing it on the branches of trees. The Indians called this dish a barbacoa. Later, this name was transformed into a modern barbecue. BBQ grill provides heat treatment of meat over hot coals. Therefore, its design and technical values differ, for example, from Panini, steam, chickens or roller grills. BBQ grill has its own features that affect its functionality and should be taken into account when selecting a grill. Traditional cooking barbecue on charcoal with the help of brazier is accompanied by the release of poly-aromatic hydrocarbons that fall on the coals along with the fat. Unfortunately, the meat partially absorbs these carcinogens along with the smoke. Therefore, many nutritionists question the usefulness of such dishes. Cooking barbeque with the help of grill excludes the presence of the poly-aromatic hydrocarbons in the finished meat due to coal lack. The fat collection is carried out with the help of special tray. Modern BBQ grills have vertical or horizontal design.
Vertical BBQ
Usually, vertical grills have a cylindrical shape and are similar to a large mixer.
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The tubular electric heater in the center of the grill provides heating. Skewers use racks on the base around the heater. Electromechanical drive inside the base provides its rotation together with skewers. Capacity under each skewer collect fat. Metal lid provides thermal insulation of working chamber. The electric heater in the center emits infrared radiation that provides heating the meat on skewers. Additionally, heat treatment uses the heat reflected from the walls. Such method provides the high process uniformity. Of course, vertical models have compact size. But, unfortunately, they are not sufficiently stable on the surface due to the relatively small size of the base. Additionally, such models often have non-removable components that impairs the device repairability.
Horizontal BBQ
Steadiness of such models is much higher, but they take up more space. Their design is similar to the design of a classic brazier.
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They usually have removable components and a large number of additional functions.
Main technical values
The size depends on the number and length of skewers. Weight varies from 4.5 to 15 feet and depends on the size and capacity of device. Capacity of vertical models varies from 3 to 7 skewers. Capacity of horizontal models limits only by its size. But usually it varies from 5 to 24 skewers. Usually expensive models have a fully collapsible design. Therefore, each element envisages replacement in case of failure. But most often, the electric heater breaks down first. Cooking time depends directly on the model power. For example, powerful enough grill provides cooking meat during 30 - 45 minutes. Almost all models of the average and upper price segment have reliable tightness, automatic shut-off when falling and, of course, stainless steel body. Rotation mechanism is hermetically sealed for protection against dirt and fat. Modern grills often use semi-mechanical control system. Electronic controls increases the cost of model more 2 - 2.5 times. But digital BBQ thermometers for control of temperature inside the meat are more popular. Today the market offers them in a wide range. The video at the end shows 8 Best BBQ Thermometers.
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Virtually all grills use top lid for protection meat from dust and dirt. Additionally, they provides safety in the event of a grill falling.
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Additional functions
Rotation of skewers Electromechanical drive smoothly turns the skewers with meat around the axis. Timer and an automatic shutdown This function automatically stops cooking meat after a specified time. Temperature adjustment This function provides selectiuon of an optimal cooking temperature for different types of meat. Read the full article
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The problem with crude oil is that it contains hundreds of different types of hydrocarbons, all mixed together.We need to separate different kinds of hydrocarbon to extract useful substances.Fortunately, there's an easy way to separate these substances, and that's oil refining.
The oil refining process begins with a fractionating column.
As the length of the hydrocarbon chain increases, the boiling point of the hydrocarbon will gradually increase, so it can be separated completely by distillation.This is what happens in a refinery--at one stage of the refining process,that crude oil is heated, and at different evaporation temperatures, different lengths of hydrocarbon chains are separated.Each chain of different lengths has different properties and thus corresponds to different USES.
To understand the diversity of crude oil components and why oil refining is so important to society, let's look at the products made from crude oil listed below:
Petroleum gas - used to heat, cook and make plastics
small molecular alkane (1-4 carbon atoms)
commonly known as methane, ethane, propane and butane
boiling range = below 40 ℃
are often pressurized liquefied for LPG (liquefied petroleum gas)
naphtha or light oil, an intermediate product, will be further processed into petrol
A mixture of alkanes containing 5-9 carbon atoms
boiling range = 60-100 ℃
gasoline engine's fuel
liquid
alkanes and naphthenes (5-12 carbon atoms)
boiling range = 40-205 ℃
kerosene, jet engine and tractor fuel;Raw materials for making other products
liquid
alkane (10-18 carbon atoms) and a mixture of aromatic hydrocarbon
boiling range = 175-325 ℃
diesel or fractional distillation diesel - used as diesel fuel or heating oil;Raw materials for making other products
liquid
Carbon is greater than the equivalent of 12 alkanes
boiling range = 250-350 ℃
lubricating oil, used engine oil, grease and other lubricants
liquid
long chain (20-50 carbon atoms) alkane, cyclanes and aromatichydrocarbon
boiling range = 300-370 ℃
heavy oil or fuel oil, used as industrial fuel;Raw materials for making other products
liquid
long chain (20-70 carbon atoms) of alkanes, cyclanes and aromatic hydrocarbon
boiling range = 370-600 ℃
residual coke, asphalt, tar and wax;Raw materials for making other products
solid
Carbon is greater than the equivalent of 70 polycyclic compounds
boiling range = higher than 600 ℃
As you may have noticed, all of these products have different sizes and boiling ranges, and it is these properties that chemists use to refine petroleum
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mitivy · 1 year
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CAS NO.91-88-3 High quality 2-(N-Ethyl-m-toluidino)ethanol supplier in China /DA 90 DAYS have REACH Certification
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Quick Details Product name:2-(N-Ethyl-m-toluidino)ethanol CAS:91-88-3 Molecular formula:C11H17NO Molecular weight:179.26 EINECS No.:202-105-9 Appearance:colorless to light yellow liquid Other names:2-(N-ETHYL-M-TOLUIDINO)ETHANOL;3-METHYL-N-ETHYL-N-BETA-HYDROXYETHYLANILINE;3-METHYL-N-ETHYL-N'-HYDROXYETHYLANILINE;N-ETHYL-N-HYDROXYETHYL-META-TOLUIChemicalbookDINE;N-ETHYL-N-HYDROXYETHYL-M-TOLUIDINE;N-ETHYL-N-(2'-HYDROXYETHYL)-3-TOLUIDINE;N-ETHYL-N-(2-HYDROXYETHYL)-M-TOLUIDINE;2-(ethyl(m-tolyl)amino)ethanol Purity:≥99% Brand:MIT -IVY INDUSTRY CO.,LTD Port: any port in china Packing: 200kg/drum or according to the clients requirement Storage: Store in dry, dark and ventilated place. Transportation: by sea or by air payment methods: L/C, T/T, D/A, D/P, O/A, paypal, western union etc.accept all payment. Application Used as a dye intermediate Superiority 1.High quality with competitive price: We are manufacturer and can provide high quality products with factory price. 2.Fast and safe delivery ① Parcels can be sent out within 48 hours after payment. Tracking number is available. ②Secure and discreet shipment. You have various choices of transportation methods. 3.We have clients throughout the world. ① Professional service and rich experience make customers feel at ease, adequate stock and fast delivery meet your desire. ②Market feedback and goods feedback are appreciated, meeting customers's requirement is our responsibility. ③High quality, competitive Company Information MIT-IVY INDUSTRY CO.,LTD is a manufacturer and exporter of fine chemical dyes & pharmaceutical intermediates in China. Mainly produce aniline series products and chlorine series products. We are a young company full of vitality and vitality. The company has a group of energetic, well-trained employees and strong technical research and development capabilities. We specialize in the production, development and sales of API intermediates, fine chemicals and plant extracts. Relying on advanced equipment and strict management, adhere to the business philosophy of "openness, tolerance, innovation, and sharing" to create a win-win cooperationplatform.Everything comes from innovation, it is our philosophy ! If you are interested in getting more quotations, please add WHATSAPP:0086-13805212761 or E-MAIL:[email protected] Main products MIT-IVYINDUSTRYCO.,LTDMit-Ivy is a well-known fine chemicals and pharmaceutical intermediates manufacturer with strong R&D support in China. Mainly involved Aniline, Chlorine products. Payment:DA 60 DAYS TEL:008619961957599   E-MAIL:[email protected] 产品 Product CAS N,N-二甲基-1,4-苯二胺 N,N-Dimethyl-1,4-phenylenediamine DMPD 99-98-9 N,N-二甲基苄胺 N,N-Dimethylbenzylamine  BDMA 103-83-3 N,N-二甲基甲酰胺   N,N-Dimethylformamide  DMF .68-12-2 N,N-二甲基甲酰胺二甲缩醛 DMF-DMA N,N-Dimethylformamidedimethyl acetal  (DMF-DMA) 4637-24-5 N,N-二甲基乙酰胺 N,N-Dimethylacetamide   DMAC 127-19-5 N,N-二乙基间甲苯甲酰胺 避蚊胺 N,N-diethyl-m-toluamide    DEET 134-62-3 N,N-二乙基羟胺 N,N-Diethylhydroxylamine  DEHA 3710-84-7 N-甲基-N-羟乙基苯胺 2-(N-甲基苯胺)乙醇 2-(N-methylanilino)ethanol 93-90-3 N-甲基吡咯烷酮 N-methylpyrrolidone 872-50-4 N,N-二甲基苯胺 N,N-Dimethylaniline   DMA 121-69-7 N,N-二甲基对甲苯胺 N,N-Dimethyl-p-toluidine  DMPT 99-97-8 N,N-二甲基邻甲苯胺 N,N-Dimethyl-o-toluidine   DMOT 609-72-3 N,N-二乙基苯胺 N,N-Diethylaniline 91-66-7 N,N-二乙基间甲苯胺 N,N-Diethyl-m-toluidine 91-67-8 N,N-二羟乙基苯胺 N,N-Dihydroxyethylaniline   PDEA 120-07-0 N-乙基间甲苯胺 N-乙基-3-甲基苯胺 N-Ethyl-m-toluidine/N-Ethyl-3-methylaniline 102-27-2 N-乙基-N-氰乙基苯胺 3-(N-ethylanilino)propiononitrile 148-87-8 N-乙基-N-羟乙基苯胺 N-Ethyl-N-hydroxyethylaniline 92-50-2 N-乙基-N-苄基苯胺 乙基苄基苯胺; N-苄基-N-乙基苯胺 N-ethyl-N-phenylbenzenemethanamine 92-59-1 N-乙基-N-氰乙基间甲苯胺 N-2-cyanoethyl-N-ethyl-m-toluidine 148-69-6 N-乙基-N-苄基间甲苯胺 N-Benzyl-N-ethyl-m-toluidine 119-94-8 N-乙基邻甲苯胺 N-Ethyl-o-toluidine/2-Ethylaminotoluene 94-68-8 N-乙基苯胺 N-Ethylaniline 103-69-5 N-甲基苯胺 N-Methylaniline 100-61-8 N,N-二甲基-间甲基苯胺 N,N-DIMETHYL-M-TOLUIDINE 121-72-2 N-甲基二苯胺 N-Methyldiphenylamine 552-82-9 N-甲基-邻甲基苯胺 N-METHYL-O-TOLUIDINE 611-21-2 N-甲基-对甲基苯胺 N-METHYL-P-TOLUIDINE 623-08-5 4-甲基-N-苯基苯胺 N-PHENYL-P-TOLUIDINE 620-84-8 N-异丙基苯胺 N-ISOPROPYLANILINE 768-52-5 N,N-二氰乙基苯胺 N,N-Dicyanoethylaniline 1555-66-4 N,N-二羟乙基-对甲基苯胺 N,N-DIHYDROXYETHYL-P-TOLUIDINEDHEPT .3077-12-1 N-乙基-2-硝基苯胺 N-Ethyl-2-Nitro-Benzenamine 10112-15-9 2,4-二氯苯胺 2,4Dichloroaniline 554-00-7 N-(2-羟乙基)乙二胺 AEEA 111-41-1 1,3-二甲基-2-咪唑啉酮N,N-二甲基亚乙基脲1,3-二甲基-2-咪唑啉酮(DMI) 1,3-Dimethyl-2-imidazolidinone  DMI N,N'-dimethylimidazolidinone 80-73-9 N,N-二苄基羟胺 N,N-Dibenzylhydroxylamine 621-07-8 对甲苯胺 P-Toluidine  PT 106-49-0 邻甲苯胺 O-Toluidine  OT 95-53-4 二乙基乙醇胺 DEEA;DEAE 100-37-8 甲萘胺 AlphaNaphthylamine 134-32-7 间二氯苯 1,3-Dichlorobenzene   MDCB 541-73-1 间甲苯胺 M-Toluidine  MT 108-44-1 间苯二胺 M-PHENYLENEDIAMINE  MPDA 108-45-2 多乙烯多胺 PEPA 68131-73-7 二乙烯三胺(DETA) Diethylenetriamine  DETA 111-40-0 三乙烯二胺 Triethylenediamine 280-57-9 三乙烯四胺 TriethylenetetramineTETA 112-24-3 四乙烯五胺 TEPA 112-57-2 Read the full article
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