Composition of the paraffin wax dispersions components emulsion a emulsion b emulsion c emulsion d 7 75 x 7 5 a 75 w 5 n i f f a r a p surfactant 2. Coal slack wax, a saturated, high molecular weight hydrocarbon mixture and byproduct of the fischertropsch process was used as raw material. Hence, a trial was made to prepare a composite material consisting of an ethylene propylene diene rubber epdmlow density polyethylene ldpe blend with two different concentrations of boron carbide b4c, to be tested as shielding materials for thermal neu trons. Paraffin wax facials moisturize, calm and improve complexions. The cause of formation of paraffin and asphaltene formation varies depending on formation. Solubility of solid paraffins in lower molecular weight. Traditionally two materials, borated paraffin and borated polyethylene, are used for radiation shielding at neutronbased research laboratories. The boric acid has a particle size distribution in. Traditionally two materials, borated paraffin and borated polyethylene, are.
An adhesive is any substance that, when applied, binds two surfaces together and resists separation. Us5430105a low sediment process for forming borated. C at least one polysulfidecontaining organic composition. Its produced from fractional distillation of petroleum be. The material employs 5% boron by weight to shield neutrons in a variety of applications.
Paraffin wax or petroleum wax is a soft colorless solid derived from petroleum, coal or shale oil that consists of a mixture of hydrocarbon molecules containing between twenty and forty carbon atoms. Paraffin wax has a high heat capacity and is able to retain that heat longer than other facial substances. Basic paraffin wax may contain oils and other possibly toxic ingredients. Chlorinated paraffins ebook by 9783642107610 rakuten kobo. Prior compounding and grinding are eliminated by the use of this fine powder which can be readily dispersed without the need for any special processing equipment. Compared to paraffinbased products, king plastishield sheets are much more durable and perform well in a wider range of temperatures. They are particularly used in cutting oils in the metal industry, but also as lubricants, plasticizers, flame retardants and as additives in adhesives, rubber, paints and sealants. It is a lightweight, costeffective and easily fabricated solution for a wide variety of neutronshielding needs. Colorless transparent oily liquid, under the observation of daylight fluorescent not significant. Other names for adhesive could include glue, mucilage and paste. Find patient medical information for paraffin on webmd including its uses, side effects and safety, interactions, pictures, warnings and user ratings. Borated or boronated carbonated or overbased organic acid.
Composition and density of the borated paraffin, pube source, plastic container and 3he detector were either supplied by the manufacturer or taken from material composition data. Therapeutic indications for the temporary relief of constipation. Considerable variation in composition, density and water content. Preparation and characterization of portland cement pastes. In this study, a composition consisting of 75% paraffin as a cheap. Resins as a polymeric surfactant for wax dispersions. We employed this method to simulate the shield of a 14mev neutron generator used as a thermal neutron source providing an external thermal neutron beam for testing large area neutron detectors developed for diffraction studies in biology and also useful for. After consecutively stir for 15 min, the mixture was ultrasonic vibration for 30 min and then stirred for 3 h continually.
A byproduct of petroleum or crude oil distillery, paraffin can be either basic or refined. Paraffin wax is a familiar substance because it is used to make candles. A wax or polymer binder is used to hold the sand, fiber, and rubber constituents together in addition to creating a hydrophobic coating on the sand. Paraffin wax melts at temperatures between 125 and 175 degrees fahrenheit. Borated plastics and woodbased particle board are also widely used in special neutron shielding applications. Paraffin oil also has waterproofing capabilities that help reduce corrosion due to the removal of moisture. The fluence values are normalized per neutron emitted from the source. Paraffin wax has many applications, from food preservation to packaging, candle making to cosmetic usage.
Remove heat block and vial from oven and transfer vials to bead trays in paraffin dispenser. The work started initially as an internship during the summer and resulted in the report fire properties of paraffin, borated paraffin, polyethylene, borated polyethylene madsen, 20. It is transparent, colorless, nearly odorless, and oily and is composed of saturated hydrocarbons derived from petroleum. The modeling of this monitor was performed on basis of information from visual observations since no information about the dimensions, the nature of the materials and their composition was available. Neutron and photon doses in high energy radiotherapy. I am trying to run the interfacial shear rheology of paraffin oilwater emulsion. The fatty acids are further processed to consumer products such as soaps and fats as well as to lubricating greases for technical applications. Borated definition of borated by the free dictionary. This is because the heat causes you to sweat, which loosens the dirt and grime in your skin.
B at least one borated overbased group i or ii metal salt of an organic acid. Quantification of boron in paraffin wax samples by particle iinis. The composition of paraffin and highdensit y poly ethylene hdpe has been studied b y lee an d choi 61 and has been intr oduced as a shapestable energy storage material. Ethylenepropylene diene rubberlow density polyethylene. Product identifier product name nparaffin c10c chemical name alkanes, c10 synonyms liquid petroleum paraffin, fraction c10c reach reg. Universal driveline fluid the lubrizol corporation. During this step, label paraffin embedding rings and set up in room with the paraffin dispenser. Preferably, the composition comprises a detergent package comprising a borated calcium detergent, wherein the detergent package provides a calcium content in the. We offer several products created exclusively for the treatment of paraffin related problems. Neutron shielding doors neutron putty borated polyethylene. It is used to reduce wear due to the physical contact of moving and stationary parts. A polymersubstituted, nitrogen or estercontaining additive in the presence of a solvent therefor, is contacted under boronating reaction conditions in a reaction zone with particulate boric acid. Chlorinated paraffins are one of the last classes of chlorinated compounds that are still being produced worldwide and used in high quantities in many applications.
Identification of the substancemixture and of the companyundertaking date issued 19. The composition of the shielding material is finalized as 70% mass fraction of paraffin wax mixed with. The moderator is composed of three cylindrical annuli. Borated polyethylene borated polyethylene sheet order. Room temperature is tasteless and odorless, heating oil slight foul. Borated paraffin wax is used as a shielding material for neutrons in nuclear industry.
Borate wood preservatives are composed of naturally occurring minerals that protect wood from fungus, termites, and other wooddecomposing organisms. Cosmetic or medicinal liquid paraffin should not be confused with the paraffin or kerosene used as a fuel. Pdf paraffin as phase change material researchgate. It is a soft, white solid at room temperature that melts and burns easily. Chemical composition of paraffin waxes springerlink. Borate mineral structures incorporate either the bo 3 triangle or bo 4 tetrahedron in which oxygen or hydroxyl groups are located at the vertices of a triangle or at the corners of a tetrahedron with a central boron atom, respectively. Design of a new long counter for the determination of the.
Since base paraffin and base polyethylene are known as combustible materials with a high energy content it is of great interest to determine the actual fire properties of the borated versions. The author was contacted as he was looking for a work for his thesis for a bsc degree in fire protection engineering. A lubricating oil composition, a method of reducing lowspeed preignition lspi in a directinjected sparkignited internal combustion engine, and a use of a lubricant composition to reduce lspi events in such an engine. The atomic composition of the samples was determined from the oxide composition of the starting materials given in table 2. Chemical changes in highoil waxbased binders used in thoroughbred horse racing synthetic surfaces are studied over a 7year period in an effort to understand the effect of changes in the binder on track behavior. Paraffin for thermal neutron shielding the health physics society.
Timmons, gillam and sterns introduction to electronic absorption spectroscopy in organic chemistry, 3d ed. Its chemical composition is a mix of hydrocarbon molecules known as alkanes. They each have many uses in multiple fields and industries. It contains a bunch of combustible hydrocrabons, typically ranging from 6 to 16 carbon atoms per molecule. It can be observed that both spectra are characterized by an evaporate component peaking in the range 200 kev1 mev with a most probable energy around 0.
Borated polyethylene shavings are available with 5% boron content and utilized for packing and filling in very small voids, gaps or joints between solid bpe sheets to assist in neutron shielding. Mp22xf mp22 wax is a micronized synthetic wax that will impart a high degree of abrasion resistance and slip into almost any type of surface coating. Pour embryo and paraffin out into small lid resting on heated surface of paraffin dispenser. Liquid paraffin comes in two forms that should not be confused with each other. A low sediment process for forming a borated, oil soluble, polymersubstituted, nitrogen or estercontaining lubricating oil additive.
Paraffins containing fewer than 5 carbon atoms per molecule are usually gaseous at room temperature, those having 5 to 15 carbon atoms are usually liquids. Posology and method of administration adults, the elderly and children over 12 years. Baze chemical consultants will identify the root cause of the problem and recommend the most powerful and cost effective solution for your situation. Liquid paraffin, also known as paraffinum liquidum or russian mineral oil, is a very highly refined mineral oil used in cosmetics and medicine. Fabrication and testing of beam dump shielding for neutron. Also known as paraffin oil, liquid paraffin, white oil. Click here for more info densetec shield borated sheet is a product specially designed for nuclear shielding applications. Chemical degradation of a paraffin waxbased binder used.
One of the most important applications of the general purpose monte carlo nparticle mcnps and mcnpx codes is neutron shielding design. Today, these materials are widely used with different properties in a variety of fields. Common applications for paraffin wax include lubrication. This disambiguation page lists articles associated with the title liquid paraffin. Influence of nparaffin composition on the aging of waxoil gel deposits k. Astm d5443 142018 standard test method for paraffin. One form of liquid paraffin is a highly refined form of kerosene, which is used as fuel.
Spex certiprep manufactures certified inorganic and organic reference standards for use in techniques such as mass spectrometry and gas chromatography and for use in research and development laboratories, public utilities, industrial and pharmaceutical manufacturing, education, and wineries. Find patient medical information for composition topical on webmd including its uses, side effects and safety, interactions, pictures, warnings and user ratings. Minimizing the background radiation in the new neutron timeof. Part of the parameters i need to key into the rheometer is the viscosity of paraffin oil. Densetec hdpe borated sheet 5% borated green color. Paraffin oxidation is a historical industrial process for the production of synthetic fatty acids. Qualitative and quantitative composition liquid paraffin 100. Yes, you can use paraffin wax instead of borated polyethylene.
If an internal link led you here, you may wish to change the link to point directly to the intended article. Borate wood preservatives are comprised of disodium octoborate tetrahydrate. The other is a very highly refined mineral oil that has various uses, such as in cosmetic and medicinal applications. Synthesis, characterization and thermal properties of. Vertices may share an oxygen atom to form extended boronoxygen networks, or if bonded to another metal ion. There are many types of adhesives, but the primary purpose of this discussion surrounds natural polymeric ones.
Some elastic scattering properties for different nuclei and the. Borat synonyms, borat pronunciation, borat translation, english dictionary definition of borat. Paraffin oil is a widely used lubricant substance for various machines and mechanical applications. Olefins, if present, are hydrogenated and the resultant saturates are included in the paraffin and. Influence of nparaffin composition on the aging of wax. The heat in a paraffin wax facial opens the pores of your skin.