toxicity of a rubber accelerator sciencedirect of vietnam
Toxicity of a rubber accelerator - ScienceDirect
TOXICITY OF RUBBER ACCELERATOR 231 It should be pointed out that the HMBT was more lethal when administered parenterally or orally, than the parent compound. The slightly greater solubility of HMBT in aqueous systems (0.8 mg/ml) over that of MBT (0.5 mg/ml) may account for more rapid absorption and hence the higher order of lethality by both the intraperitoneal and oral routes on acute exposure.
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Contamination of Injectable Solutions
Contamination of Injectable Solutions with 2-Mercaptobenzothiazole Leached from Rubber Closures. Author links open overlay panel John C. Reepmeyer Yvonne H. Juhl
Send InquiryReproductive and developmental toxicity screening test
Reproductive and developmental toxicity screening test of basic rubber accelerator, 1,3-di-o-tolylguanidine, in rats Author links open overlay panel Makoto Ema a Eisuke Kimura b Mariko Matsumoto a Akihiko Hirose a Eiichi Kamata a
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Vietnam rubber accelerator ,rubber chemical
Vietnam rubber accelerator situation in 2018. Rubber & Tyre Expo Vietnam 2018 stared on 13 th -15 th June, 2018 .. Konson Chemical sent sale representative to visit Fair and meet regular customer .
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AVOIDABLE ACCUMULATION OF POTENTIALLY ... - ScienceDirect
Abstract. Large amounts of a compound of exogenous origin were present in the serum of premature babies receiving prolonged intravenous therapy. This compound, identified as 2-(carboxymethylthio)benzothiazole (CMB) is derived from oxidation of 2-(hydroxyethylthio)benzothiazole which is leached out of rubber components of intravenous administration...
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Activator - an overview | ScienceDirect Topics
Stearic acid and zinc oxide levels of 2.0 and 5.0 phr, respectively, are accepted throughout the rubber industry as being adequate for achievement of optimum compound physical properties when in combination with a wide range of accelerator classes and types and accelerator-to-sulfur ratios. To clarify why zinc oxide is selected over the other ...
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Thiram - an overview | ScienceDirect Topics
The main features of toxicity include anorexia, diarrhea, and flatulence followed by neurological effects, ataxia, muscular contractions and prostration. With repeated ingestion, there is a possibility of cutaneous effects, alopecia and a risk of antithyroid effects, especially with maneb.
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Reproductive toxicity of brazilein in ICR mice - ScienceDirect
Reproductive toxicity of brazilein in ICR mice. Abstract Brazilein is an active small molecular compound extracted from Caesalpinia sappan L. with favorable pharmacological properties on immune system, cardiovascular system, and nervous system. C. sappan has been used as a traditional medicine in China for hundreds of years for various diseases.
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Chloroprene - an overview | ScienceDirect Topics
This colorless liquid is the monomer in the production of the polymer polychloroprene, a type of synthetic rubber. Chloroprene rubber (CR) possesses the following properties: good chemical resistance; high resistance to aging and ozone; low risk of glazing; better wear resistance than natural rubber (NR); higher cost than NR [10]. Chloroprene elastomers are rigid, usually soft, but always elastically deformable under load.
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Toxicity of Building Materials - 1st Edition
Finally, Toxicity of building materials concludes by considering the potential hazards posed by waste based/recycled building materials, and the toxicity of nanoparticles. With its distinguished editors and international team of expert contributors, Toxicity of building materials is an invaluable tool for all civil engineers, materials researchers, scientists and educators working in the field of building materials.
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Vulcanization - an overview | ScienceDirect Topics
Vulcanization is a chemical process in which the rubber is heated with sulphur, accelerator and activator at 140–160°C. The process involves the formation of cross-links between long rubber molecules so as toVulcanization is a process generally applied to rubbery or elastomeric materials.
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Toxicity of a rubber accelerator. - PubMed
Toxicity of a rubber accelerator. Guess WL, O'Leary RK.Rubber/toxicity*. Skin Diseases/chemically induced. Thiazoles/administration & dosage.
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Toxicity - an overview | ScienceDirect Topics
Toxicity as a result of ENP exposure could be the result of the action of one or a combination of several mechanisms. Traditionally, the acute ecotoxicity of some metals has been described by models such as the Biotic Ligand Model (BLM).57 The BLM describes metal toxicity as the accumulation of a critical
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Evaluation of reproductive and developmental toxicity of the rubber
PMID: 17988256 Owner: NLM Status: MEDLINE. Abstract/OtherAbstract: Male and female Crl:CD(SD) rats were fed a diet containing the rubber accelerator N,N-dicyclohexyl-2-benzothiazolesulfenamide (DCBS) at 0, 1500, 3000, 6000 or 10,000 p.p.m. (0, 83, 172, 343 or 551 mg/kg bw/day in males and 0
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Prenatal developmental toxicity study of the basic rubber accelerator
Reproductive and developmental toxicity screening test of basic rubber accelerator, 1,3-di-o-tolylguanidine, in rats.Twelve male and female rats per group were exposed to the rubber accelerator 1,3-di-o-tolylguanidine (DTG) by gavage at 0, 8, 20 or 50 mg/kg bw/day.
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Reproductive and developmental toxicity screening test of basic
However, the general reproductive toxicity of brazilein is still unknown. The purpose of the present study was to thoroughly evaluate the general reproductive toxicity of brazilein in ICR mice to support the future drug development and modernization of this potent traditional Chinese medicine.
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Accelerator | rubber manufacturing | Britannica
Accelerator , in the rubber industry, any of numerous chemical substances that cause vulcanization ( q.v. ) of rubber to occur more rapidly or at lower temperatures.Despite its toxicity, aniline was used as an accelerator for several years. Thiocarbanilide, less poisonous than aniline, succeeded it as the
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Allergy to rubber accelerators | DermNet NZ
Rubber accelerators are chemicals used to speed up the manufacturing process of rubber (vulcanisation). This process makes untreated natural rubber latex suitable for use in the manufacture of many rubber products. There are many types of rubber accelerators in use but those listed below
Send InquiryScienceDirect | Elsevier’s leading information solution | Elsevier
ScienceDirect is the easier way to find articles from over 2,500 journals and more than 33,000 book titles - ScienceDirect | Elsevier Solutions.ScienceDirect supports an uninterrupted workflow by allowing researchers to move seamlessly between books and journals, across topics and disciplines.
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Sulfur vulcanization
Sulfur vulcanization is a chemical process for converting natural rubber or related polymers into materials of a variety of hardness, elasticity, and mechanical durability by heating them with sulfur or other equivalent curatives or accelerators.
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