• Phenol is an aromatic compound derived from benzene, the simplest aromatic hydrocarbon, by adding a hydroxy group to a carbon to replace a hydrogen. (cdc.gov)
  • Most of the chlorophenols released into the environment go into water, with very little entering the air. (cdc.gov)
  • However, low levels of chlorophenols in water, soil, or sediment are broken down by microorganisms and are removed from the environment within a few days or weeks. (cdc.gov)
  • The waste materials studied were phenol-formalde-hyde resin solid wastes obtained from a fabrication plant utilizing these resins. (purdue.edu)
  • Phenol-formaldehyde resins are widely used throughout industry because of their strength, durability, and electrical properties. (purdue.edu)
  • In Materials for Sequential Build Up (SBU) of HDI-Microvia Organic Substrates, Ceferino, G. Gonzales, The Board Authority March 2000 and in Application Technologies for Coating Liquid Microvia Dielectrics, Torsten Reckert, Proceeding of Technical Conference IPC Printed Circuit Expo 2000, liquid, thermally reactive resins which have been dissolved in solvents but not yet crosslinked under the processing conditions and which are applied to the inner layer are described. (allindianpatents.com)
  • Besides, the adsorption behaviors of propylene on the catalysts were strongly affected by the chemical environment of the framework Ti sites and pore structure in the supports. (chemweb.com)
  • Uniformly distributed nano-holes are fabricated on the sapphire surface guided by dome shaped Au nanoparticles (NPs) as catalysts and the patterning process is discussed based on the disequilibrium of vapor, liquid, solid interface energies at the Au NP/sapphire interface induced by the Au evaporation at high temperature. (chemweb.com)
  • 13 . The process according to claim 12 wherein the chemical reductants are selected from the group consisting of sodium dithionite and hydroxylamine. (google.com.au)
  • The effects of potassium ferricyanide, sodium n-dodecyl sulfate, sodium hydroxide and temperature on the molecular weight and the yield of poly(2,6-dimethyl-1,4-phenylene oxide) (PPO) synthesized in an aqueous medium were studied. (worldwidescience.org)
  • Pubmed ID: 12236513 A two-dimensional HPLC system was developed where "heart-cutting" chromatography, in conjunction with cold temperature trapping, was used to isolate and concentrate specific sample analytes. (jove.com)
  • Most of this data was collected during cold temperature conditions, and some of the data collected during the night time hours, this represents one of the first studies of site specific vertical dispersion under these conditions. (spie.org)
  • The effects of exposure to any hazardous substance depend on the dose, the duration, how you are exposed, personal traits and habits, and whether other chemicals are present. (cdc.gov)
  • This public health statement tells you about chlorophenols and the effects of exposure. (cdc.gov)
  • BIBLIOGRAPHY INTRODUCTION The Environmental Health Criteria (EHC) documents produced by the International Programme on Chemical Safety include an assessment of the effects on the environment and on human health of exposure to a chemical or combination of chemicals, or physical or biological agents. (inchem.org)
  • The section on regulatory information has been extracted from the legal file of the International Register of Potentially Toxic Chemicals (IRPTC) and from other United Nations sources. (inchem.org)
  • Millimeter-wave absorption spectra of chemicals in the plume are determined by measuring the swept-frequency radar return signals with and without the plume in the beam path. (clu-in.org)
  • Dayangchem's R&D center can offer custom synthesis according to the contract research and development services for the fine chemicals, pharmaceutical, biotechnique and some of the other chemicals. (lookchem.com)
  • Elevated temperature leads to lower viscosity of the melt and hence to better flow behaviour, but also to a greatly restricted processing time due to the increased reactivity. (allindianpatents.com)
  • We promise our customer following items 1.Reasonable price: We provide high quality products with competitive price in China, 2.Low MOQ: No worry about the low MOQ, our MOQ is 1 gram or lower. (lookchem.com)
  • Particularly, the present invention refers to a delivery system consisting of a basic body comprises non-woven fibrous materials and an active-substance preparation which is an o/w emulsion or w/o emulsion, and a wetting liquid that comprises one or more actives to activate the delivery system. (sumobrain.com)
  • The device operates by allowing the activating composiiton, e.g. an organic acid such as citric acid, to diffuse through the increasingly thicker composite matrix to continuously contact the indicating composition, e.g. an acid-base dye indicator such as 2,2',4,4',4",-pentamethoxy triphenylmethanol, to produce a visually observable color change at the temperature being monitored. (google.com)
  • Therefore, under practically all conditions in natural waters, ground waters, or landfill leachate where the pH is usually in the range 5-8.5, phenol is almost totally unionized and little phenoxide ion is present. (purdue.edu)
  • The light emission pattern from diode lasers is of critical importance for sensing systems such as range finding and chemical detection. (clu-in.org)
  • A portion of this chapter describes a 1995 study conducted by EPA Victoria to evaluate the performance of the DOAS (Opsis) open-path monitoring system and to provide a preliminary assessment of a range of air pollutants at two sites, one at a major industrial chemical site in Altona and the second at a heavily trafficked roadside location in Essendon. (clu-in.org)
  • 5) The spectra collected for the beam paths (approximately 300 to 350 m from main unit to retroreflector angled from ground level to approximately 100 meters) traversed a wide range of temperatures and to a certain degree pressures which would affect the determination of the plume concentrations. (spie.org)
  • Temperature, diluent polarity, and counterions affect the chemistry of propagation. (allindianpatents.com)
  • Contributors from broad spectrum of research fields such as chemistry, chemical engineering, material science, pharmaceuticals, agriculture, food and feed and environmental science are welcomed. (koreascience.or.kr)
  • Display OmittedNanoscale patterning of sapphires is a challenging task due to the high mechanical strength, chemical stability as well as thermal durability. (chemweb.com)
  • This Public Health Statement is the summary chapter from the Toxicological Profile for chlorophenols . (cdc.gov)
  • State of Knowledge Report: Air Toxics and Indoor Air Quality in Australia, Chapter 4. (clu-in.org)
  • However, completely closed holes and microholes are absolutely essential for ensuring the high reliability requirements of high-quality circuit boards. (allindianpatents.com)
  • Quality & Price We offer high quality and reasonably priced products to our customers 2. (lookchem.com)
  • The miniaturization, thinning or slimming, and pitch-reduction of semiconductor packages have rapidly been accelerated, in response to the recent requirements for the development of compact and light weight, and high quality electronic machinery and tools. (patentsencyclopedia.com)
  • This paper discusses the development of an advanced millimeter-wave (mm-wave) chemical sensor and its applications for environmental monitoring and arms control treaty verification. (clu-in.org)
  • You must also consider the other chemicals you're exposed to and your age, sex, diet, family traits, lifestyle, and state of health. (cdc.gov)
  • The purpose of a Health and Safety Guide is to facilitate the application of these guidelines in national chemical safety programmes. (inchem.org)
  • The target readership includes occupational health services, those in ministries, governmental agencies, industry, and trade unions who are involved in the safe use of chemicals and the avoidance of environmental health hazards, and those wanting more information on this topic. (inchem.org)
  • Comments on any difficulties encountered in using the Guide would be very helpful and should be addressed to: The Manager International Programme on Chemical Safety Division of Environmental Health World Health Organization 1211 Geneva 27 Switzerland THE INFORMATION IN THIS GUIDE SHOULD BE CONSIDERED AS A STARTING POINT TO A COMPREHENSIVE HEALTH AND SAFETY PROGRAMME 1. (inchem.org)
  • Since lithium is neither corrosive nor toxic, lithium is used as a chemical tracer in the nuclear power plants to measure feedwater flow rate. (koreascience.or.kr)
  • Within the Guide is an International Chemical Safety Card which should be readily available, and should be clearly explained, to all who could come into contact with the chemical. (inchem.org)
  • we are affected physically and emotionally by every quality with which we come into contact. (staystrongsc.com)
  • Welcome to Simagchem, your partner in China as a premier supply of bulk specialty chemicals for industry and life science. (lookchem.com)
  • Using the Russian BWO tube, a mm-wave radar system was built and field-tested at the DOE Nevada Test Site at a standoff distance of 60 m. (clu-in.org)