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!. ]VAx Packed in plastic drums net 210kgs drum, 16.8MT per 20'fcl, 1000kgs drum, 20 MT per 20'FCL. -"z|1%lB ) qc*1]tMG(X]W>0pvht@POz8ST-tA $Irr;A' Bethesda, MD 20894, Web Policies 56 0 obj <> endobj [7] 0 One study suggested LAB as a suitable material to be employed in a Secret Neutrino Interactions Finder (SNIF), a type of antineutrino detector designed to detect the presence of nuclear reactors at distances of between 100 and 500km.[9]. Business Type:Manufacturer , Distributor/Wholesaler , Agent , Trade Company, Main Markets: Africa , Asia , East Europe , Middle East , Oceania , Worldwide , Americas , Caribbean , Other Markets , West Europe, Description:Linear Alkyl Benzene Sulphonic Acid,Linear Alkyl Benzene Sulphonic Acid LABSA,Surfactant Agent LABSA 96%, Full Name:Linear Alkyl Benzene Sulphonic Acid, Linear Alkyl Benzene Sulphonic ACID (LABSA), Linear Alkyl Benzene Sulphonic Acid (LABSA) is yellow or brown viscous liquid with acidity and strong absorbency; Boiling Point(oC): >100, Melting Point : 10C; Specific Gravity/Density (g/ml): 1.029; it is a kinds of weak organic acid and easy to dissolve in water, produce heat whe diluted with wate It is mainly used as the raw material to produce kinds of. endstream endobj startxref Following the exposure assessment, the environmental risk characterization for each protection target in the aquatic, terrestrial and soil compartment was determined. European Council Regulations (EC) 1488/94, https://en.wikipedia.org/w/index.php?title=Linear_alkylbenzene&oldid=1068909361, Chemicals that do not have a ChemSpider ID assigned, Articles containing unverified chemical infoboxes, Short description is different from Wikidata, Creative Commons Attribution-ShareAlike License 3.0. 1989 May;5(3):429-40. doi: 10.1177/074823378900500304. Your message must be between 20-8000 characters, Viscous Linear Alkyl Benzene Sulphonic Acid LABSA 96%, ellow or brown viscous liquid with acidity and strong absorbency; Boiling Point(oC): >100, Melting Point : 10, ; Specific Gravity/Density (g/ml): 1.029; it is a kinds of weak organic acid and easy to dissolve in water, produce heat whe diluted with wate It is mainly used as the raw material to, If you have any demands of Disinfection supplies and detergent materials such as ,Sodium, LABSA 96% Linear Alkyl Benzene Sulphonic Acid, LABSA Linear Alkyl Benzene Sulfonic Acid 96%, LABSA 96% Chemicals For Making Liquid Soap, Supply Dodecyl Benzene Sulphonic Acid LABSA CAS 27176-87-0, LABSA 96% Linear Alkyl Benzene 27176-87-0 LABSA price, High Foaming Transparency Emulsion Pvc K-69 Pg740, Billions Sulfuric Acid Rutile Tio2 Titanium Dioxide BLR-698, Emulsion Grade PVC Resin PR-440 For Gloves, Polyvinyl Alcohol SINOPEC Brand PVA 2488 for Mortars, PVC Paste Resin TPM-31 For PVC Decorative Film, High Purity Carbon Black N330 N660 For Refractory, Linear Alkyl Benzene Sulphonic Acid LABSA. The HF/n-paraffins process involving dehydrogenation of n-paraffins to olefins, and subsequent reaction with benzene using hydrogen fluoride as catalyst. The process eliminates catalyst neutralization and HF disposal. In 1995, a solid catalyst system (the DETAL process) became available. The life-cycle analysis considered the emissions and resulting environmental and human exposures. Careers. The material performs well in deep underwater environments. Consequently, most LAB plants built since then have utilized this process. This process accounts for the majority of the installed LAB production in the world. 101 0 obj <>stream Dermatotoxicity of cutting fluid mixtures:in vitro and in vivo studies. 2003 Aug;47(6):441-59. doi: 10.1093/annhyg/meg057. We are China Origin Factory of Surfactant Agent LABSA 96%. Except where otherwise noted, data are given for materials in their. Linear alkylbenzenes (sometimes also known as LABs) are a family of organic compounds with the formula C6H5CnH2n+1. Would you like email updates of new search results? LAB was therefore de-classified and was removed from Annex 1 in the 28th ATP (Directive 2001/59). The HF-based process is commercially dominant; however, the risk of releasing HF (a poisonous substance) into the environment became a concern particularly after the Clean Air Act Amendment. Hydrogen fluoride (HF) and aluminium chloride (AlCl3) are the two major catalysts for the alkylation of benzene with linear mono-olefins. R01-OH-03669/OH/NIOSH CDC HHS/United States. NDELA and nickel modulation of triazine disposition in skin. The https:// ensures that you are connecting to the TRI enhanced LAS transport, and the presence of SRA decreased LAS critical micelle concentration (CMC) which reduced LAS monomers available for transport. government site. If you have any demands of Disinfection supplies and detergent materials such as ,Sodium Lauryl Ether Sulfate, Sodium Tripolyphosphate , Sodium Hexametaphosphate , Linear Alkyl Benzene Sulphonic Acid, Lauryl Sodium Sulfate K12 , CDEA , Hydrogen Peroxide etc,welcome to inquiry us. Disclaimer, National Library of Medicine In summary, physicochemical interactions in these mixtures influenced availability of LAS for absorption and distribution in skin, and could ultimately influence toxicological responses in skin. MeSH Please enable it to take advantage of the complete set of features! official website and that any information you provide is encrypted Hydrotreated kerosene is a typical feedstock for high purity linear paraffins (n-paraffins), which are subsequently dehydrogenated to linear olefins: Alternatively, ethylene can be oligomerized (partially polymerized) to produce linear alkenes. LAS was more likely to partition into the stratum corneum (SC) in mineral oil mixtures, and LAS absorption was significantly greater in the complete mixture. TEA increased mixture viscosity, and this may have negated the apparent enhancing properties of TRI in several mixtures. sharing sensitive information, make sure youre on a federal LAS absorption was limited to less than a 0.5% dose and the additives in various combinations influenced the physicochemical characteristics of the dosing mixture. Since the 1960s, LABs have emerged as the dominant precursor of biodegradable detergents.[2]. European Council Regulation (EC) 1488/94[10] led to it being extensively evaluated. HHS Vulnerability Disclosure, Help qYMXH4a1d 9KV}pP $kkf3egU9zto:d7~l7IVGiUjj6(R8Xl/hoo7PAKiVeM^;:X7XHtcmEMHTN8S|+|UPT2!,p59&Q=]/j(z%RIGZ/KKBE _kwNI6;8'>_8QNq3;Am>RT)2_J1yU7lK3,!%\1,\ Technical, occupational health and environmental aspects of metal degreasing with aqueous cleaners. They are mainly produced as intermediate in the production of surfactants, for use in detergent. Bookshelf endstream endobj 57 0 obj <> endobj 58 0 obj <> endobj 59 0 obj <>stream Linear alkylbenzene 07/08-S7 Report, ChemSystems, February 2009. fT_*F_?=2ZorN?C1TQNc#QFtD5h4/h@S_0L24\S4%Kn,)w'Xn9f@KEjRIE[-'(7Vn Health effects of oil mists: a brief review. The production of n-paraffins often occurs as part of an integrated LAB plant where the producers start from kerosene as raw material. It is also available in large volumes at a relatively low cost at the SNO+ site. F3B_)]HC}.V3n%9]5@? 2005 Oct;21(9):197-205. doi: 10.1191/0748233705th229oa. Typically, n lies between 10 and 16, although generally supplied as a tighter cut, such as C12-C15, C12-C13 and C10-C13, for detergent use. hbbd``b`V@Hp\A k2 )a ,@$do $8M5@B#qo ] The site is secure. All the Linear Alkyl Benzene Sulphonic Acid LABSA are quality guaranteed. Linear alkylbenzene is sulfonated to produce linear alkylbenzene sulfonate (LAS), a biodegradable surfactant. Unable to load your collection due to an error, Unable to load your delegates due to an error. A desulfurization process is needed to reduce the sulfur content of some n-paraffins. LAB has been subject to concern about its effect on the environment and human health. Baynes RE, Brooks JD, Barlow BM, Riviere JE. hb```f``g`e`b`@ ( pF-kV``kP%Y~s9mxFY#E;T}\D@uwt400T@Fq "20i% Pd`@,iac(dC_#ml 9{N"&0o*M8 U@ u4F The resulting linear mono-olefins react with benzene in the presence of a catalyst to produce the LABs. [4] The ExxonMobil Chemical technology includes a recovery process and can produce LAB grade n-paraffins from most medium to low sulfur kerosene without the use of a hydrotreater stage upstream. [ n/`Mm\z8DqW. Ann Occup Hyg. Each process generates LAB products with distinct features. Detergent, emulsion.Such as laundry powder, dish wash cleaner in daily chemical industrial; Cleaner, dyeing assistant in textile industrial; Degrease agent in electroplate and leather manufacture, de-inking agent in paper making ect. Product Categories : Detergent > Linear Alkyl Benzene Sulphonic Acid, Copyright 2022 HENAN JINHE INDUSTRY CO.,LTD All rights reserved.Privacy Policy. [1] The CnH2n+1 chain is unbranched. The report concludes that there are no concerns for the environment or human health. Looking for ideal Linear Alkyl Benzene Sulphonic Acid Manufacturer & supplier ? Important product characteristics include the bromine index, sulfonatability, amount of 2-phenyl isomers (2-phenylalkane), the tetralin content, amount of non-alkylbenzene components, and the linearity of the product. LAB was identified as a promising liquid scintillator by the SNO+ neutrino detector[5] Accessibility 1)in hair shampoo, bath shampoo, dish detergents and complex soap, laundry powder, dishware cleaner in daily chemical industrial, 2)it is also used in wetting and clearer , dyeing assistant in textile industry. The UOP process for producing normal paraffin includes a kerosene prefractionation unit, a hydrotreating unit and a Molex unit. 3)degrease agent in electroplate and leather manufacture de-inking agent in paper making. %PDF-1.5 % FOIA and transmitted securely. due to its good optical transparency (20 m), high light yield, low amount of radioactive impurities, and its high flash point (140C) which makes safe handling easier. For human health the scenarios for occupational exposure, consumer exposure and human exposure indirectly via the environment have been examined and the possible risks identified. The .gov means its official. hX[SJq5WIU:1I8AINH~~=/8-%%*"1B[VTKB$I"uT&"TlD The DETAL process involving dehydrogenation of n-paraffins to olefins, and subsequent reaction with benzene using a fixed bed catalyst. Cutan Ocul Toxicol. There is no need for further testing or risk reduction measures beyond those currently practiced. Store this product in dry and cool place, kept away from sunshine and rain. PMC Mixture additives inhibit the dermal permeation of the fatty acid, ricinoleic acid. An official website of the United States government. Clipboard, Search History, and several other advanced features are temporarily unavailable. [8] This site needs JavaScript to work properly. [6] It is now used in several other neutrino detectors, such as the RENO and Daya Bay Reactor Neutrino Experiments. Before 79 0 obj <>/Filter/FlateDecode/ID[<8738D791813C8484852A3AB5E9F38067><9354A3B4600A1C4BB5F35CE7230AB1FC>]/Index[56 46]/Info 55 0 R/Length 109/Prev 142942/Root 57 0 R/Size 102/Type/XRef/W[1 2 1]>>stream JS"UBG&%L$"D&Q*'FRavBF 14C-LAS mixtures were formulated with three commonly used cutting fluid additives; 0 or 2% triazine (TRI), 0 or 5% triethanolamine (TEA), and 0 or 5% sulfurized ricinoleic acid (SRA). 2006;25(4):235-47. doi: 10.1080/15569520601013137. Monteiro-Riviere NA, Inman AO, Barlow BM, Baynes RE. There is a developing, This page was last edited on 30 January 2022, at 18:55. [3], Given the large scale applications of LAB-derived detergents, a variety routes have been developed to produce linear alkylbenzenes:[3]. %%EOF LAS replaced branched dodecylbenzene sulfonates, which were phased out because they biodegrade more slowly. Linear alkylbenzene sulfonate (LAS) is added to cutting fluid formulations to enhance the performance of metal machining operations, but this surfactant can cause contact dermatitis in workers involved in these operations. Federal government websites often end in .gov or .mil. It includes a PACOL Stage where n-paraffins are converted to mono-olefins (typically internal mono-olefins), a DEFINE Unit whose primary function is to convert residual diolefins to mono-olefins, a PEP Unit which is essentially an aromatic removal unit - introduced before the alkylation step to improve LAB yield and quality, an alkylation step where mono-olefins, both internal and alpha olefins, are reacted with benzene to produce LAB in the presence of HF catalyst. Toxicol Lett. v&;vs+,R@oA.lV The purpose of this study was to determine how cutting fluid additives influence dermal disposition of 14C-LAS in mineral oil- or polyethylene glycol 200 (PEG)-based mixtures when topically applied to silastic membranes and porcine skin in an in vitro flow-through diffusion cell system. Toxicol Ind Health. We have a wide selection at good prices to help you get creative. 2004 Feb 28;147(1):15-26. doi: 10.1016/j.toxlet.2003.09.014. Toxicol Ind Health. If you have any question, please feel free to contact us. This is newer technology and has several of the stages depicted in the HF/n-paraffins process, but it is principally different in the benzene alkylation step, during which a solid-state catalyst is employed. 8600 Rockville Pike

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