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Catalogue of Chemical, Philosophical and Other Glassware For
CHEMICAL GLASSWARE. PHILADELPHIA & NEW YORK 1 8 8 1 1 8 8 1 CATALOGUE OF CHEMICAL, PHILOSOPHICAL AN D OTHER GLASSWARE FOR LABORATORIES, COLLEGES, MUSEUMS, ASSAYING WORKS, INSTITUTES OF TECHNOLOGY, ACADEMIES, &c., &c. MANUFACTURED BY WHITALL, TATUM & CO., No. 410 RACE STREET, 46 and 48 BARCLAY ST., P. O. Lock Box P, P. O. Box 3814, PHILADELPHIA. N E W Y O R K . 1 8 8 1 . For a full line of G lassw are of various kinds, send for our G eneral C atalogue. CHEMICAL REAGENTS AT NET PRICES. Discount on Chemical List, pages vi.-xiv., and Bottles, x v i i i . - x x . , .................................................................................45 p e r cent. Discount on Flint Homoeopathic Vials, pages xxi.-xxiii., 25 “ “ Graduates, pages xvi., xvii., - - 25 “ Reagents, pp. iv., v.; Sundries, p. xv.; and Scales, p. xxiv. at net prices. The references by pages are to oar GENERAL CATALOGUE. ii CHEMICAL AND PHILOSOPHICAL GLASSWARE FOR Laboratories, Colleges, Museums, Assaying Works, Institutes of Technology, Academies, &c. Attention is invited to the Line of Chemical Glass Ware of our own manufacture. By purchasing this class of goods at home, instead of depending upon foreign sources of supply, the carrying of a large and expensive stock is avoided; the opportunity of effecting changes in the form of apparatus for special purposes is afforded, and promptness in filling orders greatly facilitated. Under the advice and direction of experienced chemists, we have for a number of years been perfecting our work in these lines, and now feel confident that the character both of the glass and work manship will be found, for all the usual needs of the Laboratory, to compare favorably with the imported wares. -
Laboratory Glassware N Edition No
Laboratory Glassware n Edition No. 2 n Index Introduction 3 Ground joint glassware 13 Volumetric glassware 53 General laboratory glassware 65 Alphabetical index 76 Índice alfabético 77 Index Reference index 78 [email protected] Scharlau has been in the scientific glassware business for over 15 years Until now Scharlab S.L. had limited its sales to the Spanish market. However, now, coinciding with the inauguration of the new workshop next to our warehouse in Sentmenat, we are ready to export our scientific glassware to other countries. Standard and made to order Products for which there is regular demand are produced in larger Scharlau glassware quantities and then stocked for almost immediate supply. Other products are either manufactured directly from glass tubing or are constructed from a number of semi-finished products. Quality Even today, scientific glassblowing remains a highly skilled hand craft and the quality of glassware depends on the skill of each blower. Careful selection of the raw glass ensures that our final products are free from imperfections such as air lines, scratches and stones. You will be able to judge for yourself the workmanship of our glassware products. Safety All our glassware is annealed and made stress free to avoid breakage. Fax: +34 93 715 67 25 Scharlab The Lab Sourcing Group 3 www.scharlab.com Glassware Scharlau glassware is made from borosilicate glass that meets the specifications of the following standards: BS ISO 3585, DIN 12217 Type 3.3 Borosilicate glass ASTM E-438 Type 1 Class A Borosilicate glass US Pharmacopoeia Type 1 Borosilicate glass European Pharmacopoeia Type 1 Glass The typical chemical composition of our borosilicate glass is as follows: O Si 2 81% B2O3 13% Na2O 4% Al2O3 2% Glass is an inorganic substance that on cooling becomes rigid without crystallising and therefore it has no melting point as such. -
Environmental Chemistry Method Methoxyfenozide & Degradates In
Dow AgroSciences LLC Study ID: 110356 Page 12 Method Validation Study for the Detennination of Residues of Methoxyfenozide and its A-ring • Phenol Metabolite and B-ring Mono Acid Metabolite in Surface Water, Ground Water and Drinking Water by Liquid Chromatography with Tandem Mass Spectrometry INTRODUCTION J This method is applicable for the quantitative detennination of residues of methoxyfenozide and its A-ring phenol metabolite and B-ring mono acid metabolite in surface, ground and drinking water. The method was validated over the concentration range of 0.05-1.0 µg/L with a validated limit of quantitation of 0.05 µg/L. Common names, chemical names, and molecular formulas for the analytes are given in Table I. This study was conducted to fulfill data requirements outlined in the EPA Residue Chemistry Test Guidelines, OPPTS 850. 7100 (/). The validation will also comply with the requirements of EU Council Regulation (EC) No. 1107/2009 with particular regard to Section 3 of SANCO/3029/99 rev.4 and Section 3 of SANCO/825/00 rev.8.1 as well as PMRA Regulatory Directive Dir98-02 (2-4). The validation was conducted following Dow AgroSciences SOP ECL-24 with exceptions noted in the protocol or by protocol amendment. Method Principle Residues of methoxyfenozide, its A-ring phenol metabolite and its B-ring mono acid metabolite • are extracted from water samples by taking a l 0.0-mL aliquot and placing in an I I -dram (45-mL) glass vial equipped with a PTFE-lined cap or a 50-mL polypropylene centrifuge tube equipped with a cap. -
Laboratory Equipment Reference Sheet
Laboratory Equipment Stirring Rod: Reference Sheet: Iron Ring: Description: Glass rod. Uses: To stir combinations; To use in pouring liquids. Evaporating Dish: Description: Iron ring with a screw fastener; Several Sizes Uses: To fasten to the ring stand as a support for an apparatus Description: Porcelain dish. Buret Clamp/Test Tube Clamp: Uses: As a container for small amounts of liquids being evaporated. Glass Plate: Description: Metal clamp with a screw fastener, swivel and lock nut, adjusting screw, and a curved clamp. Uses: To hold an apparatus; May be fastened to a ring stand. Mortar and Pestle: Description: Thick glass. Uses: Many uses; Should not be heated Description: Heavy porcelain dish with a grinder. Watch Glass: Uses: To grind chemicals to a powder. Spatula: Description: Curved glass. Uses: May be used as a beaker cover; May be used in evaporating very small amounts of Description: Made of metal or porcelain. liquid. Uses: To transfer solid chemicals in weighing. Funnel: Triangular File: Description: Metal file with three cutting edges. Uses: To scratch glass or file. Rubber Connector: Description: Glass or plastic. Uses: To hold filter paper; May be used in pouring Description: Short length of tubing. Medicine Dropper: Uses: To connect parts of an apparatus. Pinch Clamp: Description: Glass tip with a rubber bulb. Uses: To transfer small amounts of liquid. Forceps: Description: Metal clamp with finger grips. Uses: To clamp a rubber connector. Test Tube Rack: Description: Metal Uses: To pick up or hold small objects. Beaker: Description: Rack; May be wood, metal, or plastic. Uses: To hold test tubes in an upright position. -
Kimblecatalog Dwkcover Digital.Pdf
1 ADAPTERS 223 GAS SAMPLING 16 AMPULES 226 HYDROMETERS 16 ARSINE GENERATORS 229 ISO 17 BEADS 235 JARS 18 BEAKERS 236 JUGS 21 BOTTLES 237 KITS AND LABSETS 41 BURETS 265 NMR 47 CAPS, CLOSURES, SEPTA 271 PETROCHEMICAL 59 CELL CULTURE 289 PIPETS 62 CENTRIFUGE TUBES 294 PURGE AND TRAP 71 CHROMATOGRAPHY 295 RAY-SORB 112 CLAMPS 300 ROTARY EVAPORATORS 114 CONCENTRATORS 305 SAFETY 118 CONDENSERS 319 SERIALIZED AND CERTIFIED 124 CONES 324 SLEEVES 124 CRUCIBLES 324 STARTER PACKS 125 CYLINDERS 325 STIRRERS 131 DAIRYWARE 328 STOPCOCKS AND VALVES 135 DESICCATORS 337 STOPPERS 135 DISHES 340 TISSUE GRINDERS 136 DISPENSERS 348 TUBES 136 DISSOLUTION VESSELS 365 VACUUM AND AIRLESS 137 DISTILLATION 374 VIALS 158 DRYING 389 WASHERS 159 EXTRACTION 390 WEIGHING BOATS 165 FILTRATION 391 TECHNICAL INFORMATION 179 FLASKS 433 INDEX TABLE OF CONTENTS TABLE 210 FREEZE DRYING 210 FRITTED WARE 211 FUNNELS Kimble has the products and expertise to support our customers’ workflows. We focus on providing laboratory glassware solutions from sample storage to sample disposition for market segments such as petrochemical, pharma/biotech/life sciences, environmental and food/beverage. With our breadth of products and depth of knowledge, Kimble offers everything you need to streamline your workflow and simplify everyday life in the lab. From vials and NMR tubes to barcoding services and beakers, we’ve got you—and your sample— covered from start to finish. Discover why Every Sample Deserves Kimble Sample Collection Sample Storage Sample Preparation Detection Sample Disposition -
Laboratory Supplies and Equipment
Laboratory Supplies and Equipment Beakers: 9 - 12 • Beakers with Handles • Printed Square Ratio Beakers • Griffin Style Molded Beakers • Tapered PP, PMP & PTFE Beakers • Heatable PTFE Beakers Bottles: 17 - 32 • Plastic Laboratory Bottles • Rectangular & Square Bottles Heatable PTFE Beakers Page 12 • Tamper Evident Plastic Bottles • Concertina Collapsible Bottle • Plastic Dispensing Bottles NEW Straight-Side Containers • Plastic Wash Bottles PETE with White PP Closures • PTFE Bottle Pourers Page 39 Containers: 38 - 42 • Screw Cap Plastic Jars & Containers • Snap Cap Plastic Jars & Containers • Hinged Lid Plastic Containers • Dispensing Plastic Containers • Graduated Plastic Containers • Disposable Plastic Containers Cylinders: 45 - 48 • Clear Plastic Cylinder, PMP • Translucent Plastic Cylinder, PP • Short Form Plastic Cylinder, PP • Four Liter Plastic Cylinder, PP NEW Polycarbonate Graduated Bottles with PP Closures Page 21 • Certified Plastic Cylinder, PMP • Hydrometer Jar, PP • Conical Shape Plastic Cylinder, PP Disposal Boxes: 54 - 55 • Bio-bin Waste Disposal Containers • Glass Disposal Boxes • Burn-upTM Bins • Plastic Recycling Boxes • Non-Hazardous Disposal Boxes Printed Cylinders Page 47 Drying Racks: 55 - 56 • Kartell Plastic Drying Rack, High Impact PS • Dynalon Mega-Peg Plastic Drying Rack • Azlon Epoxy Coated Drying Rack • Plastic Draining Baskets • Custom Size Drying Racks Available Burn-upTM Bins Page 54 Dynalon® Labware Table of Contents and Introduction ® Dynalon Labware, a leading wholesaler of plastic lab supplies throughout -
The Stoichiometry of a Reaction Introduction This Experiment Provides a Method to Determine the Mole Ratio in Which Two Substances Combine Chemically
The Stoichiometry of a Reaction Introduction This experiment provides a method to determine the mole ratio in which two substances combine chemically. Such information is helpful in determining the stoichiometry of a reaction, i.e. the balanced chemical equation and the information that can be derived from it. The principle underlying this experiment is based on keeping the quantity of one reactant constant while varying the quantity of a second reactant. The mass of the precipitate produced is then used as an indicator of the effect of varying the quantity of the second reactant. When enough of the second reactant has been added to completely react with the first reactant, there will be no further increase in the amount of the precipitate produced, regardless of how much of the second one is added. Equipment/Materials 0.1M Pb(NO3)2 Stirring rod 0.1M KI Funnel 5 % HNO3 Side-armed Erlenmeyer flask Filter paper Hot plate 10mL automatic pipets Analytical balance 50 mL beakers Wash bottle of DI water Safety • Goggles must be worn at all times in the laboratory. • Pour any leftover solution in the designated containers. • Follow your instructor’s directions for the disposal of the precipitates. Guiding Questions Which trial(s) will give the most precipitate? Why? 9A-1 Procedure 1. In this experiment the stoichiometry of the lead nitrate – potassium iodide system will be investigated. The volume of the potassium iodide will be held constant while the volume of the lead nitrate is varied. The concentration of both solutions will be 0.1000 M. Each lab group will be asked to prepare two combinations in the following table. -
Bottlesinsmall Case for Unlimitedapplications
BOTTLES KIMAX® media bottles are the perfect bottle for any application. The outstanding quality ensures a wide range of use, from long term storage and transporting to the most demanding applications in the pharmaceutical and food industries. Sturdy design and improved clarity allow contents and volume to be checked quickly, while temperature resistance makes the bottles ideal for autoclaving. Essential to every laboratory, KIMAX® media bottles are proven reliable for unlimited applications. We offer a wide variety of general purpose bottles in small case quantities or large bulk packs with a variety of closures. We also offer containers with or without caps attached for high use items or facilities with centralized stockrooms. Customization to meet your specific needs is simpler than ever, including pre-cleaning and barcoding. Trust DWK Life Sciences to be the exclusive source for all your laboratory glass needs. DWK Life Sciences 22 BOTTLES Clear Glass Boston Round / Amber Glass Boston Round Clear Glass Boston Round Bottles Amber Glass Boston Round Bottles Kimble® Clear Boston Rounds are made from Type III Kimble® Amber Boston Rounds are made from Type III soda-lime glass and have a narrow-mouth design. Clear soda-lime glass and have a narrow-mouth design. Amber bottles allow for viewing of contents. They come with a bottles protect light-sensitive contents. They come with a variety of caps and liner combinations and are designed variety of caps and liner combinations. They are designed to protect the quality of liquids and product storage. to protect contents from UV rays and are ideal for light- sensitive products. -
UNIT 1 ANSWERS the Water Is Called the Solvent and the Sodium Chloride Is the Solute
ANSWERS 345 5 ▶ Sodium chloride dissolves in water to form a solution. UNIT 1 ANSWERS The water is called the solvent and the sodium chloride is the solute. If the solution is heated to 50 °C some of the water evaporates until the solution becomes CHAPTER 1 saturated and sodium chloride crystals start to form. 1 ▶ a melting b freezing 6 ▶ a er 60 c subliming/sublimation d subliming/sublimation 50 g wat 2 ▶ a 40 30 20 10 0 solid liquid gas solubility/g per 100 0 20 40 60 80 100 120 Note: Solids should have regularly packed particles temperature/°C touching. Liquids should have most of the particles b 94 +/−1 g per 100 g touching at least some of their neighbours, but with The values obtained in this question and in c depend gaps here and there, and no regularity. Gases should on the line of best fit. In the exam there will always be have the particles well spaced. some tolerance – a range of values will be accepted. b Solids: vibration around a fixed point. Liquids: c From the graph, the solubility at 30 oC is 10 g per 100 g particles can move around into vacant spaces, but of water. with some difficulty because of the relatively close 40 ____ × 10 = 4 g packing. 100 c Evaporation: Some faster moving particles break away Therefore 4 g of sodium chlorate will dissolve. from the surface of the liquid. Boiling: Attractive forces d i 53 +/−1 °C are broken throughout the liquid to produce bubbles ii The solubility at 17 oC is 7 ±1 g per 100 g, therefore of vapour. -
Investigation I: Graphical Determination of a Physical Value
2018-19 Chemistry 120/ Compound Prep & Analysis/Procedure 1 Investigation 3: Preparation and Analysis of a Compound Focus Questions: How can we determine the empirical formula of the potassium iron oxalate compound synthesized in lab? What is the percent yield of the synthesis reaction? Background Synthesizing compounds in the laboratory – especially those that are new, medically useful, or brightly colored – is an exciting facet of chemistry. However, determining the chemical formula of the compound produced can be a challenge. In this series of investigations, you will synthesize a complex compound and then use several techniques to determine the empirical formula of the compound. Overview The compound that will be synthesized has the general formula KaFeb(C2O4)c · dH2O, where a, b, c, and d, are integers that give the relative molar quantities of each component in the compound. The synthesized compound will be isolated by filtration and then analyzed for percent potassium, percent oxalate, and percent water, all over a period of several weeks. The percent iron will be found by difference once the percentages of the other three components are known. These percentages will then be used to calculate the empirical formula of the synthesized compound. Percent potassium determined by ion exchange Percent water determined followed by acid-base by dehydration titration KaFeb(C2O4)c · dH2O Percent iron determined by Percent oxalate determined difference after other three by reaction with cerium percentages are known Synthesis and Isolation of the Compound Preparation of NaOH Solution, Dehydration and Analysis for Potassium Pre-lab required reading Chemistry; an Atoms-Focused Approach: Sections 7.3-7.5, 7.7, and 8.5 – 8.8. -
30B459cf080bf4bc9f35f9422b81
Analysis of the light intensity dependence of the growth of Synechocystis and of the light distribution in a photobioreactor energized by 635 nm light Alessandro Cordara1,2, Angela Re2, Cristina Pagliano1, Pascal Van Alphen3, Raffaele Pirone4, Guido Saracco2,5, Filipe Branco dos Santos3, Klaas Hellingwerf3 and Nicolò Vasile2 1 Applied Science and Technology Department—Biosolar Lab, Politecnico di Torino, Turin, Italy 2 Centre for Sustainable Future Technologies, Istituto Italiano di Tecnologia, Turin, Italy 3 Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, Netherlands 4 Applied Science and Technology Department, Politecnico di Torino, Turin, Italy 5 Current affiliation: Applied Science and Technology Department, Politecnico di Torino, Turin, Italy ABSTRACT Synechocystis gathered momentum in modelling studies and biotechnological applications owing to multiple factors like fast growth, ability to fix carbon dioxide into valuable products, and the relative ease of genetic manipulation. Synechocystis physiology and metabolism, and consequently, the productivity of Synechocystis- based photobioreactors (PBRs), are heavily light modulated. Here, we set up a turbidostat-controlled lab-scale cultivation system in order to study the influence of varying orange–red light intensities on Synechocystis growth characteristics and photosynthetic activity. Synechocystis growth and photosynthetic activity were found - - to raise as supplied light intensity increased up to 500 mmol photons m 2 s 1 and to - - enter the photoinhibition state only at 800 mmol photons m 2 s 1. Interestingly, reverting the light to a non-photo-inhibiting intensity unveiled Synechocystis to be able to promptly recover. Furthermore, our characterization displayed a clear correlation between variations in growth rate and cell size, extending a phenomenon previously observed in other cyanobacteria. -
32-9-2.5.2 Stop TB Global Drug Facility Diagnostics Catalog [.Pdf]
OCTOBER 2019 DIAGNOSTICS CATALOG GLOBAL DRUG FACILITY (GDF) PHOTO: MAKA AKHALAIA PHOTO: Ensuring an uninterrupted supply of quality-assured, affordable tuberculosis (TB) medicines and diagnostics to the world. stoptb.org/gdf Stop TB Partnership | Global Drug Facility Global Health Campus – Chemin du Pommier 40 1218 Le Grand-Saconnex | Geneva, Switzerland Email: [email protected] Last verion's date: 08 October 2019. Stop TB Partnership/Global Drug Facility licensed this product under an Attribution-NonCommercial-NoDerivatives 4.0 International License. (CC BY-NC-ND 4.0) https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode GLOBAL DRUG FACILITY DIAGNOSTICS CATALOG OCTOBER 2019 GDF is the largest global provider of quality-assured tuberculosis (TB) medicines, diagnostics, and laboratory supplies to the public sector. Since 2001, GDF has facilitated access to high-quality TB care in over 130 countries, providing treatments to over 30 million people with TB and procuring and delivering more than $200 million worth of diagnostic equipment. As a unit of the Stop TB Partnership, GDF provides a full range of quality-assured products to meet the needs of any TB laboratory globally. GDF provides more than 500 diagnostics products, including the latest WHO-approved TB diagnostic devices and reagents, together with the consumables and ancillary devices required to ensure a safe working environment. These products cater to all levels of laboratories, ranging from peripheral health centers to centralized reference laboratories, and provide countries with the latest WHO-recommended technologies for detecting TB and drug resistance. To place an order for any diagnostics product, please follow the step-by-step guide available on the GDF website.