Control of IL J
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
United States Patent Office Patented Sept
3,000,702 United States Patent Office Patented Sept. 19, 196 2 since potassium fluoride is very soluble. In this case, a 3,000,702 MANUEFACTURE OF SODIUM FLUOR DE double or complex salt is formed in the melt between George L. Cunningham, Burtonsville, Md., assignor to potassium fluoride and the calcium salt and that is slowly W. R. Grace & Co., New York, N.Y., a corporation extracted with water in spite of the great solubility of of Connecticut potassium fluoride in water. The corrosion of the molten No Drawing. Filed May 23, 1958, Ser. No. 737,196 melt is also a considerable problem although suitable 4. Claims. (CI. 23-88) ceramic materials have been discovered for constructing the fusion vessel. This invention relates to a process for the manufac Processes have been devised for the production of so ture of sodium fluoride relatively low in silica content. 10 dium fluoride based on the thermal decomposition of More particularly, this invention relates to a cyclic proc sodium silicofluoride to sodium fluoride and silicon tetra ess whereby sodium fluoride, relatively low in silica con fluoride (U.S. 1,896,697, U.S. 2,588,786, 1,730,915, tent and ammonium chloride, may be manufactured from 2,602,726, and U.S. 1,664,348). These processes are cheap and readily available raw materials. faulty in that relatively high temperatures are required to As manufactured at the present time, technical sodium 15 decompose the sodium silicofluoride and thus it is very fluoride contains 94% to 97% NaF and 1.5% to 5.0% difficult to carry the reaction to completion. -
Ammonium Bifluoride CAS No
Product Safety Summary Ammonium Bifluoride CAS No. 1341-49-7 This Product Safety Summary is intended to provide a general overview of the chemical substance. The information on the summary is basic information and is not intended to provide emergency response information, medical information or treatment information. The summary should not be used to provide in-depth safety and health information. In-depth safety and health information can be found in the Safety Data Sheet (SDS) for the chemical substance. Names • Ammonium bifluoride (ABF) • Ammonium difluoride • Ammonium acid fluoride • Ammonium hydrogen difluoride • Ammonium fluoride compound with hydrogen fluoride (1:1) Product Overview Solvay Fluorides, LLC does not sell ammonium bifluoride directly to consumers. Ammonium bifluoride is used in industrial applications and in other processes where workplace exposures can occur. Ammonium bifluoride (ABF) is used for cleaning and etching of metals before they are further processed. It is used as an oil well acidifier and in the etching of glass or cleaning of brick and ceramics. It may also be used for pH adjustment in industrial textile processing or laundries. ABF is available as a solid or liquid solution (in water). Ammonium bifluoride is a corrosive chemical and contact can severely irritate and burn the skin and eyes causing possible permanent eye damage. Breathing ammonium bifluoride can severely irritate and burn the nose, throat, and lungs, causing nosebleeds, cough, wheezing and shortness of breath. On contact with water or moist skin, ABF can release hydrofluoric acid, a very dangerous acid. Inhalation or ingestion of large amounts of ammonium bifluoride can cause nausea, vomiting and loss of appetite. -
Environmental Protection Agency § 117.3
Environmental Protection Agency § 117.3 (4) Applicability date. This paragraph TABLE 117.3—REPORTABLE QUANTITIES OF (i) is applicable beginning on February HAZARDOUS SUBSTANCES DESIGNATED PUR- 6, 2020. SUANT TO SECTION 311 OF THE CLEAN (j) Process waste water means any WATER ACT—Continued water which, during manufacturing or Cat- RQ in pounds processing, comes into direct contact Material egory (kilograms) with or results from the production or use of any raw material, intermediate Ammonium benzoate ...................... D ...... 5,000 (2,270) Ammonium bicarbonate .................. D ...... 5,000 (2,270) product, finished product, byproduct, Ammonium bichromate ................... A ....... 10 (4.54) or waste product. Ammonium bifluoride ...................... B ....... 100 (45.4) Ammonium bisulfite ......................... D ...... 5,000 (2,270) [44 FR 50776, Aug. 29, 1979, as amended at 58 Ammonium carbamate .................... D ...... 5,000 (2,270) FR 45039, Aug. 25, 1993; 65 FR 30904, May 15, Ammonium carbonate ..................... D ...... 5,000 (2,270) 2000; 80 FR 37112, June 29, 2015; 83 FR 5208, Ammonium chloride ........................ D ...... 5,000 (2,270) Feb. 6, 2018] Ammonium chromate ...................... A ....... 10 (4.54) Ammonium citrate dibasic ............... D ...... 5,000 (2,270) Ammonium fluoborate ..................... D ...... 5,000 (2,270) § 117.2 Abbreviations. Ammonium fluoride ......................... B ....... 100 (45.4) NPDES equals National Pollutant Ammonium hydroxide ..................... C -
The Influences of Fluorides on the Transformation of Α-Alumina Crystals
Ceramics-Silikáty 61 (4), 357-366 (2017) www.ceramics-silikaty.cz doi: 10.13168/cs.2017.0035 THE INFLUENCES OF FLUORIDES ON THE TRANSFORMATION OF α-ALUMINA CRYSTALS #QINGBO TIAN*,**, XIAOJIE YANG***, YUE WANG**, ZHIJIE LV** *Co-innovation Center for Green Building of Shandong Province,, Shandong Jianzhu University, Jinan 250101, P. R. China; **School of Material Science and Engineering, Shandong Jianzhu University, Jinan 250101, P. R. China; ***Shandong Institute for Product Quality Inspection, Jinan 250100, P. R. China #E-mail: [email protected] Submitted June 20, 2017; accepted July 29, 2017 Keywords: α-Al2O3 , Morphology, Platelet-like Al2O3, Fluorides Influence of addition of aluminum fluoride (AlF3) and ammonium fluoride (NH4F) on transformation of α-Al2O3 from boehmite was investigated. Transformation of α-Al2O3 occurred at about 1050°C and 950°C, when boehmite contained AlF3 and NH4F additives respectively, which was 150°C and 300°C lower than that without any additives. The formed α-Al2O3 consisted of clear, hexagonal plate-like particles about 2-3 µm in diameter and 200 nm in thickness. However, the formed hexagonal platelet particles gradually became blunt at edges and decreased in sizes at the higher calcinating temperatures. The transfer of α-Al2O3 morphology was due to the diminution and disappearance of fluorine. The fluoride coated on the surfaces were firstly decomposed and then fluorine entered the lattices of crystals was volatilized. The fluoride with tiny particles attached on the surface had a same chemical bonding of F–Al–O with that in the lattices of crystals. INTRODUCTION ration of ammonium nitrate induced the transformation of intermediate phases to the stable α-Al2O3 structure at The high pure alumina ceramics have attracted a lower temperature. -
United States Patent (19) 11 Patent Number: 5,883,058 Wells Et Al
USOO5883058A United States Patent (19) 11 Patent Number: 5,883,058 Wells et al. (45) Date of Patent: *Mar 16, 1999 54 HIGH LATHER STYLING SHAMPOOS 4,784,801 11/1988 Hoeffkes et al. ....................... 252/554 5,084.212 1/1992 Farris et al. ............................ 252/554 (75) Inventors: Robert Lee Wells, Cincinnati, Ohio; 5,104,642 4/1992 Wells et al. ..... ... 424/47 Jon Robert Behrens, Kobe, Japan 5,120,532 6/1992 Wells et al. ............ ... 424/70 5,310,508 5/1994 Subramanyam et al. ............... 252/549 73) Assignee: The Procter & Gamble Company, 5,391,368 2/1995 Gerstein ............................... 424/70.13 5,514,302 5/1996 Brown ..................................... 252/545 Cincinnati, Ohio 5,580,494 12/1996 Sandhu et al. .......................... 510/125 Notice: The term of this patent shall not extend FOREIGN PATENT DOCUMENTS beyond the expiration date of Pat. No. 5,672.576. 0323715 12/1989 European Pat. Off.. Appl. No.: 520,631 Primary Examiner Paul Lieberman Assistant Examiner Necholas Ogden Filed: Aug. 29, 1995 Attorney, Agent, or Firm Joan B. Tucker; William J. Int. Cl." ................................................ C110 1/83 Winter; Tara M. Rosnell U.S. Cl. .......................... 510/127; 510/119,510/123; 57 ABSTRACT 510/125; 424/70.11; 424/70.24 The present invention relates to hair shampoo compositions Field of Search ..................................... 252/549, 550, which have improved cleansing, lathering, and Styling ben 252/551, 557; 510/119, 123,125, 127; efits=. These Shampoo compositions comprise an alkyl glyc 424/70.24, 70.11 eryl ether Sulfonate Surfactant, a hair Styling polymer, a 56) References Cited non-polar volatile Solvent, and water. -
A Study of Interaction of Cetyltrimethyl Ammonium Bromide with Methyl Red by Conductometry in Methanol-Water Mixed Solvent Media
A STUDY OF INTERACTION OF CETYLTRIMETHYL AMMONIUM BROMIDE WITH METHYL RED BY CONDUCTOMETRY IN METHANOL-WATER MIXED SOLVENT MEDIA A PROJECT WORK SUBMITTED TO THE DEPARTMENT OF CHEMISTRY CENTRAL CAMPUS OF TECHNOLOGY HATTISAR, DHARAN, INSTITUTE OF SCIENCE AND TECHNOLOGY TRIBHUVAN UNIVERSITY, NEPAL, AS A PARTIAL FULFILLMENT OF THE REQUIREMENT FOR THE DEGREE OF BACHELOR OF SCIENCE IN CHEMISTRY BY Shubheksha Dahal EXAMS ROLL NO: 80038 TU REDG NO: 5-2-0008-0054-2013 CENTRAL CAMPUS OF TECHNOLOGY HATTISAR, DHARAN, TRIBHUVAN UNIVERSITY, NEPAL September 2017 i BOARD OF EXAMINER AND CERTIFICATE OF APPROVAL This project work entitled “A Study of Interaction of Cetyltrimethyl Ammonium Bromide with Methyl Red by Conductometry in Methanol-Water Mixed Solvent Media”, by “Shubheksha Dahal” (Roll No.: 80038; T.U. Regd No.: 5-2-0008-0054-2013), under the supervision of “Netra Subedi”, Central Campus of Technology Hattisar, Dharan, Department of Chemistry, Tribhuvan University, Nepal, is hereby submitted for the partial fulfillment of Bachelor of Science (B.Sc.) Degree in Chemistry. This project work had not been submitted in any other university or institution previously and has been approved for the award of degree. …………………………….. Supervisor Mr. Netra Subedi Teaching assistant Department of Chemistry C.C.T., Hattisar, Dharan Tribhuvan University ..………………….......… ….…………………… Internal Examiner External Examiner Department of Chemistry C.C.T., Hattisar, Dharan Tribhuvan University ……………………………… Lalita Shrestha Chairman (Department of Chemistry) Central Campus of Technology, Hattisar T.U., Dharan Sunsari, Nepal Date: … September 2017 ii RECOMMENDATION This is recommending that Shubheksha Dahal(Roll No.: 80038; T.U. Regd No.: 5- 2-0008-0054-2013) has carried out project work entitled “A Study of Interaction of Cetyltrimethyl Ammonium Bromide with Methyl Red by Conductometry in Methanol-Water Mixed Solvent Media” as a partial fulfillment of 4 years Bachelor degree of 4th year in chemistry under my supervision. -
Application News Multi-Residue Analysis of 18 Regulated Mycotoxins by LC-MS/MS (2) No
LAAN-A-LM-E135 LC-MS/MS Application News Multi-residue analysis of 18 regulated mycotoxins by LC-MS/MS (2) No. C165 Fusarium mycotoxins are a structurally diverse group Materials and Methods of secondary metabolites known to contaminate a Solvent extracts were provided by Concept Life Sciences diverse array of food and feed resulting in a risk for following validated extraction protocols. Samples were human and animal health. European guidance measured using a Nexera UHPLC and the LCMS-8060 legislation has set maximum levels for mycotoxins in triple quadrupole detector (Table 1). To separate out the food and feed to minimize the impact to human and three pairs of regioisomers (3-AcDON/15-AcDON, animal health. The most toxicologically important FB2/FB3, and FA2/FA3) a pentafluorophenyl (PFP) column Fusarium mycotoxins are trichothecenes (including was used and compared against a C18 material. To deoxynivalenol (DON) and T-2 toxin (T-2)), zearalenone enhance signal response a series of mobile phase (ZON) and fumonisin B1 (FB1). additives were considered including ammonium acetate, In this work, a single LC-MS/MS method has been ammonium fluoride, ammonium formate and acetic acid developed for the determination of 18 mycotoxins in food solutions. safety. Limits of quantification were at or below the In this work, ammonium fluoride solution and maximum levels set in the EC/1886/2006 document. The ammonium fluoride with acetic acid solution was the scope of the method included aflatoxins (B1, B2, G1, G2), preferred solvent system as it resulted in a considerable fumonisins (B1, B2, B3), ochratoxin A (OTA) and enhancement of signal intensity in positive ion mode trichothecenes (3-acetyldeoxynivalenol (3-AcDON), 15- for all mycotoxins. -
Appendix C: Natural Resources and Environmental Protection
A Appendix C: P Natural Resources P and Environmental E Protection Act (NREPA) Part 31 – N Part 5 Rules D • Applicability Flow Chart I • Part 5 Rules with Notes X C APPENDIX C: NREPA Part 31 – Part 5 Rules Applicability Flow Chart - Part 5 Rules Spillage of Oil and Polluting Materials Review the administrative rules (R 324.2001 – R 324.2009) on the following pages and ask the questions below to determine if the Part 5 requirements apply. Does the facility meet the definition of an oil storage or on-land facility per R 324.2001 (f) or (g)? No Yes Does the facility have polluting materials that all meet the small container exemption or are regulated by (and in compliance with) another Yes Not subject to Part 5 requirements. program listed in R 324.2003 excluding R 324.2003 (1)(b)? No Does the facility have polluting materials in regulated Threshold Management Quantities (TMQs) per R 324.2002 (f)? No Polluting materials include mixtures containing 1% or more, by weight, of any substances listed below. SALT LISTED CHEMICALS OIL R 324.2009 Solid form - 5 tons Single container or tank having 660 gallon storage or Liquid form - 1,000 gallons Outdoors – 440 pounds capacity Indoors – 2,200 pounds Total capacity of 1,320 gallons above ground storage REQUIREMENTS o Pollution Incident Prevention Plan (PIPP) – R 324.2006 REQUIREMENTS Including notification requirements to EGLE , local health o Use Area & Indoor Storage – R 324.2005 department, and local emergency planning committee o Surveillance – R 324.2004 o Secondary Containment – R 324.2005 o -
FLUID COMPATIBILITY CHART for Metal Threaded Fittings Sealed with Loctite¨ Sealants LIQUIDS, SOLUTIONS & SUSPENSIONS
FLUID COMPATIBILITY CHART for metal threaded fittings sealed with Loctite® Sealants LIQUIDS, SOLUTIONS & SUSPENSIONS LEGEND: Bagasse Fibers.......................... Chlorobenzene Dry ................... Ferrous Chloride ...................... Ion Exclusion Glycol ................. Nickel Chloride.......................... All Loctite® Anaerobic Sealants are Barium Acetate ........................ Chloroform Dry......................... Ferrous Oxalate......................... Irish Moss Slurry...................... Nickel Cyanide ......................... Compatible Including #242®, 243, Barium Carbonate..................... Chloroformate Methyl............... Ferrous Sulfate10%.................. Iron Ore Taconite ..................... Nickel Fluoborate ..................... 542, 545, 565, 567, 569, 571, 572, Barium Chloride........................ Chlorosulfonic Acid .................. Ferrous Sulfate (Sat)................. Iron Oxide ................................ Nickel Ore Fines ....................... 577, 580, 592 Barium Hydroxide..................... Chrome Acid Cleaning .............. Fertilizer Sol ............................. Isobutyl Alcohol ....................... Nickel Plating Bright ................. † Use Loctite® #270, 271™, 277, 554 Barium Sulfate.......................... Chrome Liquor.......................... Flotation Concentrates.............. Isobutyraldehyde ..................... Nickel Sulfate ........................... Not Recommended Battery Acid .............................. Chrome Plating -
Ammonium Bromide
Safety Data Sheet Ammonium Bromide 1. PRODUCT AND COMPANY IDENTIFICATION Product Name: Ammonium Bromide Synonyms/Generic Names: None SDS Number: 39.00 Product Use: For Educational Use Only Manufacturer: Columbus Chemical Industries, Inc. N4335 Temkin Rd. Columbus, WI. 53925 For More Information Contact: Ward's Science 5100 West Henrietta Rd. PO Box 92912-9012 Rochester, NY 14692 (800) 962-2660 (Monday-Friday 7:30-7:00 Eastern Time) In Case of Emergency Call: CHEMTREC - 800-424-9300 or 703-527-3887 (24 Hours/Day, 7 Days/Week) 2. HAZARDS IDENTIFICATION OSHA Hazards: Target organ effect Target Organs: Central nervous system Signal Words: Warning Pictograms: None GHS Classification: Eye irritation Category 2B Acute toxicity, Oral Category 5 GHS Label Elements, including precautionary statements: Hazard Statements: H303 May be harmful if swallowed. H320 Causes eye irritation. Precautionary Statements: P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do so. Continue rinsing. Potential Health Effects Eyes Causes eye irritation. Inhalation May be harmful if inhaled. Causes respiratory tract irritation. Skin May be harmful if absorbed through skin. Causes skin irritation. Ingestion May be harmful if swallowed. Revised on 06/20/2013 Page 1 of 5 NFPA Ratings HMIS Ratings Health 1 Health 1 Flammability 0 Fire 0 Reactivity 0 Reactivity 0 Specific hazard Not Available Personal B 3. COMPOSITION/INFORMATION ON INGREDIENTS EINECS# / Molecular Component Weight % CAS # Formula ELINCS# Weight Ammonium Bromide 100 12124-97-9 235-183-8 BrNH4 97.94 g/mol 4. FIRST-AID MEASURES Eyes Rinse with plenty of water for at least 15 minutes and seek medical attention if necessary. -
Ammonium Fluoride Product Stewardship Summary February 2012
Ammonium Fluoride Product Stewardship Summary February 2012 (NH4)F Chemical Name: Ammonium Fluoride Chemical Category (if applicable): Inorganic neutral halide Synonyms: Neutral ammonium fluoride; Commercial ammonium fluoride; and (NH4)F CAS Number: 12125-01-8 CAS Name: Ammonium fluoride EC (EINECS) Number: 235-185-9 Other identifier (Please specify): GPS0050 Honeywell manufactures ammonium fluoride that is used by industry in the manufacture of electronic materials. Exposure can occur at either an ammonium fluoride manufacturing facility or at other manufacturing, packaging or storage facilities that handle ammonium fluoride. Persons involved in maintenance, sampling and testing activities, or in the loading and unloading of packages containing ammonium fluoride are at risk of exposure, but worker exposure can be controlled with the use of proper general mechanical ventilation and personal protective equipment. Workplace exposure limits for fluoride ion have been established for use in worksite safety programs. When ammonium fluoride is a component of consumer products, users should follow manufacturer’s use and/or label instructions. Ammonium fluoride dusts released to the atmosphere and deposited in soil or surface water in the vicinity of production sites have negligible impact on the environment. Please see the MSDS for additional information. Ammonium fluoride is a nonflammable solid that is stable under normal conditions. Ammonium fluoride is corrosive to metals and glass. It can react with acids to liberate hydrogen fluoride and bases to liberate ammonia. When heated to decomposition, it will release toxic hydrogen fluoride gas and ammonia. Contact of ammonium fluoride with water or extended skin contact under moist conditions can produce hydrofluoric acid (HF), a very dangerous acid that can cause burns of the skin and eyes. -
In-Situ Study of Ammonium Bromide Formation for Optimizing Boron Nitride ALD from Bbr3 and NH3
In-situ study of ammonium bromide formation for optimizing boron nitride ALD from BBr3 and NH3 Arnoud J. Onnink, R. Oguzhan Apaydin, Jurriaan Schmitz and Alexey Y. Kovalgin MESA+ Institute for Nanotechnology, University of Twente, the Netherlands. E-mail: [email protected] Boron nitride (BN) has received much attention for a wide range of applications, including in electronics, photonics, and power devices [1]. Among the variety of techniques to deposit thin films of BN, atomic layer deposition (ALD) is an industrially relevant approach due to enabling precise thickness control and excellent conformality [1]. This work studies the deposition of BN from boron tribromide (BBr3) and ammonia (NH3) by in-situ real-time monitoring of the reactive gases and reaction byproducts, using Fourier Transform infrared (FTIR) spectroscopy and spectroscopic ellipsometry (SE) as schematically shown in figure 1a. Depending on the chosen conditions, the deposition of BN varies between ALD and pulsed chemical vapor deposition (CVD). Figures 1b-c show a layer of particles deposited on a cold (293 K) substrate near the exhaust, identified as ammonium bromide (NH4Br) by the FTIR reflectance spectrum. Such salt is a known byproduct in CVD from NH3 and halide precursor [2], forming from NH3 and the gaseous hydrogen halide byproduct (here, HBr) and spreading through the reactor by sublimation, dissociation [3] to HBr + NH3, and redeposition. To optimize an ALD recipe, the precursor-pulse and purge durations are typically increased until the growth per cycle (GPC) saturates. This work explores a new method to optimize BN ALD based on in-situ monitoring by FTIR and SE of the precursors and reaction byproducts.