DOCSLIB.ORG

STUDENTS 2 SCIENCE Virtual Lab Experiment Precipitates

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
STUDENTS 2 SCIENCE Virtual Lab Experiment Precipitates STUDENTS 2 SCIENCE Virtual Lab Experiment Precipitates An investigation of solubility and precipitation. A classroom Experiment in Kit Form for Grades 9-12 Brief Background: Students will learn the difference between reaction precipitates like the precipitation of Basic copper carBonate from the reaction of copper chloride and sodium carBonate and those that result solely from a change in solution soluBility (water vs. isopropanol). They will learn aBout precipitation in water treatment and purification and aBout the scientists who work to provide or maintain clean water for us. Additionally, students will learn that precipitates can sometimes Be redissolved By adding another chemical compound and thus carrying out an additional chemical reaction. Safety Students and teachers must wear properly fitting goggles as they prepare for, conduct, and clean up from the activities in the kit. Read and follow all safety warnings. Also review the Materials Safety Data Sheets. Students must wash their hands with soap and water after the activities. The activities described in this kit are intended for students under the direct supervision of teachers. Student kit packaged as 13 individual units for a class size of 26. Each student package is shared by 2 students. Items in each 2-student Ziploc bag: • (1) vial labeled “CuSO4” approximately 1/4 filled with cupric sulfate • (1) empty vial laBeled “CuSO4 Solution” • (1) 4-mL vial laBeled “CaCl2” containing small amount calcium chloride • (1) vial labeled “NaHCO3” (in red lettering) approximately 1/3 filled with sodium bicarbonate © 2015 Students 2 Science Inc. All Rights Reserved. • (1) vial labeled “Na2CO3” approximately 1/3 filled with sodium carbonate • (1) empty vial laBeled “Na2CO3 Solution” • (1) empty 4-mL vial laBeled “NaHCO3 Solution” • (1) empty large vial • (1) 4-mL vial laBeled “IPA” containing 2 mL isopropanol • (1) dropper Bottle laBeled “HCl” containing 0.05N HCl • (1) mini-tuBe holder with 6 minituBes placed in the holes • (4) pipets • (2) 9oz cups (water, waste) • (1) 4 oz cup • (1) measuring cup • (4) small scoops • (1) small spoon • flat toothpicks (4 – 6) • (1) folded filter paper circle Three worksheets per group of students: • “PPT Experiment Layout.docx” sheet • “Precipitates Worksheet.docx” sheet • Precipitates Template sheet Teacher Supplied Items: Water Pre-lab Set up: Provide each 2-student team with the day’s experiment contained in the Ziploc Bag (items in the bag are listed above) and 3 handouts (listed aBove). The items in the bag should be placed on the layout sheet as described below. Remove the 9oz cup labeled “water” from each Bag and half-fill with water. Paper towels should Be available for cleanup of spills. Each student must have a pen or pencil. All students and instructors should have safety glasses and gloves. © 2015 Students 2 Science Inc. All Rights Reserved. Instructor/Teacher Procedure and guide 1. What is a precipitate? a. A precipitate is an insoluBle solid that emerges from a liquid solution. b. Precipitation may occur if the concentration of the solid exceeds its soluBility. c. It can also occur if two soluBle salts react to form a third compound that is insoluble. A" "is"an"insoluble"solid"that" emerges"from"a"liquid"solu4on! Two!types!of!precipitates:! • Precipita4on"may"occur"if"the"concentra4on"of"a" compound"exceeds"its"solubility"" !when"changing"solu4on"temperature" !when"mixing"solvents" • Reac4on"precipitate"–"forms"when"two"soluble"salts" react"in"solu4on"to"form"a"compound"that"is"insoluble"" 2. Chemical change vs. solvent/soluBility change a. Confirm worksheets and layout sheets are set up properly b. Tell students to keep pipets and scoops with their respective solutions/chemicals and not to mix them up. c. Add 2 nearly full scoops of solid sodium BicarBonate to the bicarbonate solution vial. d. Practice using the pipet to be able to add water dropwise. e. Add 2 mL of water using the pipet to the BicarBonate solution vial. f. Cap and shake vigorously to dissolve the bicarbonate. i. A small amount will not dissolve ii. The soluBility of BicarBonate in water is 100mg/mL and the two scoops contain greater than 200 mg. g. Using a clean pipet, remove a few drops of clear liquid above the remaining solid and add this to the vial containing isopropyl alcohol (IPA) h. What happened? (should oBserve BicarBonate coming out of solution) © 2015 Students 2 Science Inc. All Rights Reserved. Solubility)of)Salts) Sodium'Bicarbonate'('NaHCO3')' 100)mg)/)mL)in)water)) <)0.1)mg)/)mL)in)isopropanol)()IPA))) Calcium'Chloride'('CaCl2')' 80)mg)/)mL)in)water) ) ) i. Enter results on worksheet under “test solution sodium BicarBonate IPA”. j. Add 2 mL of water to the vial laBeled CaCl2, calcium chloride k. Cap and shake to dissolve. (solution should be clear, no precipitate) l. Add 1 mL of additional water if it is not fully dissolved. m. Add a few drops of the clear supernatant solution in the Bicarbonate vial to the vial containing the CaCl2 solution. n. OBserve (precipitate should form) i. The equation shown below gives the specifics of the reaction Between sodium BicarBonate and calcium chloride. These two compounds spontaneously react in water to form 4 different products, insoluBle calcium carBonate, soluBle sodium chloride, water, and carbon dioxide gas. ii. Calcium carBonate is the compound used By ocean coral and marine plankton to Build skeletons and for shellfish to Build the shells they need for protection. © 2015 Students 2 Science Inc. All Rights Reserved. Precipita)on,Reac)on:,, Forming,Insoluble,Calcium,Carbonate, Calcium,carbonate,solubility,,,,<,0.1,mg,/,mL,in,water, o. Record results on worksheet under “ test solution sodium BicarBonate calcium chloride”. 3. Applications to real world issues: a. Purposeful precipitation is used to remove impurities from our drinking water. b. These can be separated by filtration. i. Rayfield Jackson is a water treatment chemist for the city of Chicago. As a water treatment chemist, Rayfield is just one of many types of scientists who work to provide or maintain clean water for all of us on the earth. ii. Environmental Chemists work to limit human-caused damage to the environment. Hydrologists who study the movement, distribution, and quality of water on Earth and Wastewater Engineers who design systems that safely treat wastewater to remove harmful suBstances and return clean water back to the environment. © 2015 Students 2 Science Inc. All Rights Reserved. Scien&sts)who)help)provide)us)with) clean)water:) ! • Environmental)Chemists–)work)to)limit)human:caused) damage)to)the)environment)) • Hydrologists)–)study)the)movement,)distribu&on,)and)quality) of)water)on)Earth) • Wastewater)Engineers)):)design)systems)that)safely)treat) wastewater)to)remove)harmful)substances)and)return)it)to) the)environment) Alum is a class of compounds containing aluminum and sulfate. The 2 most common types of alum used are potassium alum and ammonium alum, and this slide shows you their chemical formula. Alum acts in two different ways to purify water. It causes suspended particles to clump together so they can Be easily filtered out. It can also precipitate certain dissolved chemicals, like phosphates. Phosphates are potentially dangerous phosphorous salts that contaminate streams and lakes from the overuse of fertilizers. The removal of phosphate By alum is an example of a reaction precipitate. © 2015 Students 2 Science Inc. All Rights Reserved. Alum%for%Water%Purifica1on% • A%class%of%chemicals%containing%aluminum% and%sulfate% – Potassium%alum%–%KAl(SO4)2% – Ammonium%alum%–%(NH4)Al(SO4)2% • When%dissolved%in%water%% – causes%suspended%par1cles%to%clump%together% – precipitates%dissolved%phosphate%% 4. Generating a precipitate: Copper salts-Copper carbonate. Solution Preparation a. Examples of Copper Salts: when copper is exposed to the effects of weather, it develops a blue-green patina. The patina is a mixture of copper salts, including oxides, carbonates, and sulfides. Students are going to make what’s called Basic copper carBonate from a solution of copper sulfate. Statue&of&Liberty& © 2015 Students 2 Science Inc. All Rights Reserved. Copper&Pa)na& New&copper&gu0er& Weathered&copper&gu0er& b. Using a clean scoop, place 4 full scoops of copper sulfate into the empty copper sulfate solution vial. c. Using the measuring cup, measure 10 milliliters of water and add it to the copper sulfate. d. Cap and shake to dissolve. Solution might remain slightly cloudy. This will not affect the experiment. Allow the vial to sit undisturBed for a few minutes to allow the undissolved particles to settle. e. Using a clean scoop, place 2 scoops of sodium carBonate into the empty sodium carBonate solution vial. f. Using the measuring cup, measure 5 milliliters of water and add it to the sodium carBonate. g. Cap and shake to dissolve. 5. Experiments in minituBes-1 a. Bottom 3 tubes (4, 5, and 6) will get 6 drops each of copper sulfate solution using a clean pipet. b. Add 1 drop of water into the first tube on the left (4). What happens? (nothing-this will be the control well) c. Add 1 drop of sodium carBonate solution to the tube second from the left (5). DO NOT MIX. Observe. (see light precipitate) d. Add 6 drops the sodium carBonate solution to the third tube (6) and mix it gently with the toothpick for just a few seconds. (heavy precipitate and bubbles=CO2) i. When copper sulfate reacts with sodium carBonate, it forms the precipitate basic copper carbonate. ii. This is one of the main compounds present in the Blue-green patina seen on the Statue of Liberty and weathered copper roofs and gutters. e. Enter results and observations on worksheet. © 2015 Students 2 Science Inc. All Rights Reserved. Reac%on(of(Copper(Sulfate(and( Sodium(Carbonate( 2(CuSO4((aq)((+((2(Na2CO3((aq)((+((H2O((((→( (Cu2(OH)2CO3((s)((+((2(Na2SO4((aq)((+((CO2((g)!! The!precipitate!is!“basic!copper!carbonate”:! Cu2(OH)2CO3( ! The!gas!is!“carbon!dioxide”:! !CO2(! When copper sulfate reacts with sodium carBonate, it forms the precipitate Basic copper carBonate.
Load more

Recommended publications
  • Unit: Stoichiometry Lesson: #10 Topics: Solvay Process
    Unit: Stoichiometry Lesson: #10 Topics: Solvay Process The Solvay Process: A Case Study Many important industrial processes involve chemical reactions that are difficult to perform and still be economically feasible. In some cases, the overall process must follow a series of reaction steps. Sodium carbonate is a chemical that is needed in large amounts – it is used in the production of glass and soap. Historically, sodium carbonate was produced by burning plants or coal and mixing the ashes with water This method was both inefficient and very expensive because of the large amount of material that needed to be burned. The Solvay process was developed as a cost effective alternative. It involves a series of reaction steps and has a net reaction of: CaCO3 (s) + 2 NaCl (aq) Na2CO3 (aq) + CaCl2 (aq) A net reaction is determined by looking at the various reaction steps and eliminating any chemical that appears as both a reactant and a product in the various steps. These chemicals are known as intermediates. Step 1: Calcium carbonate (limestone) is decomposed by heat to form calcium oxide (lime) and carbon dioxide. CaCO3 (s) CaO (s) + CO2 (g) Step 2: Carbon dioxide reacts with aqueous ammonia and water to form aqueous ammonium hydrogen carbonate. CO2 (g) + NH3 (aq) + H2O (l) NH4HCO3 (aq) Step 3: The aqueous ammonium hydrogen carbonate reacts with sodium chloride to produce ammonium chloride and solid baking soda. NH4HCO3 (aq) + NaCl (aq) NH4Cl (aq) + NaHCO3 (s) Step 4: The baking soda is heated up and decomposed into sodium carbonate, water vapor and carbon dioxide. 2 NaHCO3 (s) Na2CO3 (s) + H2O (g) + CO2 (g) Step 5: The lime that was produced in the first step is mixed with water to produce slaked lime (calcium hydroxide).
    [Show full text]
  • The Reaction of Calcium Chloride with Carbonate Salts
    The Reaction of Calcium Chloride with Carbonate Salts PRE-LAB ASSIGNMENT: Reading: Chapter 3 & Chapter 4, sections 1-3 in Brown, LeMay, Bursten, & Murphy. 1. What product(s) might be expected to form when solid lithium carbonate is added to an aqueous solution of calcium chloride? Write a balanced chemical equation for this process. 2. How many grams of lithium carbonate would you need to fully react with one mole of calcium chloride? Please show your work. INTRODUCTION: The purpose of this lab is to help you discover the relationships between the reactants and products in a precipitation reaction. In this lab you will react a calcium chloride solution with lithium carbonate, sodium carbonate, or potassium carbonate. The precipitate that results will be filtered and weighed. In each determination you will use the same amount of calcium chloride and different amounts of your carbonate salt. This experiment is a "discovery"- type experiment. The procedure will be carefully described, but the analysis of the data is left purposely vague. You will work in small groups to decide how best to work up the data. In the process you will have the chance to discover some principles, to use what you have learned in lecture, and to practice thinking about manipulative details and theory at the same time. Plotting your data in an appropriate manner should verify the identity of the precipitate and clarify the relationship between the amount of carbonate salt and the yield of precipitate. Predicting the formulas of ionic compounds. Compounds like calcium chloride (CaCl2) and sodium carbonate (Na2CO3) are ionic substances.
    [Show full text]
  • Sodium Laurilsulfate Used As an Excipient
    9 October 2017 EMA/CHMP/351898/2014 corr. 1* Committee for Human Medicinal Products (CHMP) Sodium laurilsulfate used as an excipient Report published in support of the ‘Questions and answers on sodium laurilsulfate used as an excipient in medicinal products for human use’ (EMA/CHMP/606830/2017) * Deletion of the E number. Please see the corrected Annex for further details. 30 Churchill Place ● Canary Wharf ● London E14 5EU ● United Kingdom Telephone +44 (0)20 3660 6000 Facsimile +44 (0)20 3660 5555 Send a question via our website www.ema.europa.eu/contact An agency of the European Union © European Medicines Agency, 2018. Reproduction is authorised provided the source is acknowledged. Sodium laurilsulfate used as an excipient Table of contents Executive summary ..................................................................................... 3 Introduction ................................................................................................ 4 Scientific discussion .................................................................................... 4 1. Characteristics ....................................................................................... 4 1.1 Category (function) ............................................................................................. 4 1.2 Properties........................................................................................................... 4 1.3 Use in medicinal products ..................................................................................... 5 1.4 Regulatory
    [Show full text]
  • CASE STUDY Methane Recovery at Non-Coal Mines
    CASE STUDY Methane Recovery at Non-coal Mines Background Existing methane recovery projects at non-coal mines reduce greenhouse gas (GHG) emissions by up to 3 million tons of carbon dioxide equivalent (CO₂e). Although methane emissions are generally associated with coal mines, methane is also found in salt, potash, trona, diamond, gold, base metals, and lead mines throughout the world. Many of these deposits are located adjacent to hydrocarbon (e.g., coal and oil) deposits where methane originates. Consequently, during the process of mining non-coal deposits, methane may be released. Overview of Methane Recovery Projects Beatrix Gold Mine, South Africa Promethium Carbon, a carbon and climate change advisory firm, has developed a project to capture and use methane from the Beatrix Gold Mine in Free State, South Africa (see box). Project Specifications: Beatrix Gold Mine Name Capture and Utilization of Methane at the Gold Fields–owned Beatrix Mine in South Africa Site Free State Province, South Africa Owner Gold Fields Ltd., Exxaro On-site Pty Ltd. Dates of Operation May 2011–present Equipment Phase 1 • GE Roots Blowers • Trolex gas monitoring systems • Flame arrestor • 23 burner flare Equipment Phase 2 Addition of internal combustion engines End-use Phase 1 Destruction through flaring End-use Phase 2 4 MW power generation Emission Reductions 1.7 million tons CO²e expected over CDM project lifetime (through 2016) Commissioning of Flare at Beatrix Gold Mine (Photo courtesy of Gold Fields Ltd.) CASE STUDY Methane Recovery at Non-coal Mines ABUTEC Mine Gas Incinerator at Green River Trona Mine (Photo courtesy of Solvay Chemicals, Inc.) Green River Trona Mine, United States Project Specifications: Green River Trona Mine Trona is an evaporite mineral mined in the United States Name Green River Trona Mine Methane as the primary source of sodium carbonate, or soda ash.
    [Show full text]
  • Crystals of an Insoluble Carbonate of Copper Grown Under a Soda Solution L
    Journal of the Arkansas Academy of Science Volume 1 Article 22 1941 Crystals of an Insoluble Carbonate of Copper Grown under a Soda Solution L. B. Roberts University of Arkansas at Monticello Edwin Roberts University of Arkansas at Monticello Follow this and additional works at: http://scholarworks.uark.edu/jaas Part of the Organic Chemistry Commons Recommended Citation Roberts, L. B. and Roberts, Edwin (1941) "Crystals of an Insoluble Carbonate of Copper Grown under a Soda Solution," Journal of the Arkansas Academy of Science: Vol. 1 , Article 22. Available at: http://scholarworks.uark.edu/jaas/vol1/iss1/22 This article is available for use under the Creative Commons license: Attribution-NoDerivatives 4.0 International (CC BY-ND 4.0). Users are able to read, download, copy, print, distribute, search, link to the full texts of these articles, or use them for any other lawful purpose, without asking prior permission from the publisher or the author. This Article is brought to you for free and open access by ScholarWorks@UARK. It has been accepted for inclusion in Journal of the Arkansas Academy of Science by an authorized editor of ScholarWorks@UARK. For more information, please contact [email protected], [email protected]. Journal of the Arkansas Academy of Science, Vol. 1 [1941], Art. 22 CRYSTALS OF AN INSOLUBLE CARBONATE OF COPPER GROWN UNDER A SODA SOLUTION1 L. B. Roberts and Edwin Roberts, Arkansas Agricultural and Mechanical College, Monticello When an old fire extinguisher of the soda-acid type was opened and emptied preparatory to recharging, several grams of blue crystals were found in the bottom of the container.
    [Show full text]
  • Safety Data Sheet According to 29CFR1910/1200 and GHS Rev
    Safety Data Sheet according to 29CFR1910/1200 and GHS Rev. 3 Effective date : 12.12.2014 Page 1 of 7 Sodium Carbonate,Anhydrous SECTION 1 : Identification of the substance/mixture and of the supplier Product name : Sodium Carbonate,Anhydrous Manufacturer/Supplier Trade name: Manufacturer/Supplier Article number: S25539D Recommended uses of the product and uses restrictions on use: Manufacturer Details: AquaPhoenix Scientific 9 Barnhart Drive, Hanover, PA 17331 Supplier Details: Fisher Science Education 15 Jet View Drive, Rochester, NY 14624 Emergency telephone number: Fisher Science Education Emergency Telephone No.: 800-535-5053 SECTION 2 : Hazards identification Classification of the substance or mixture: Irritant Eye irritation, category 2A Eye Irritation 2 Signal word :Warning Hazard statements: Causes serious eye irritation Precautionary statements: If medical advice is needed, have product container or label at hand Keep out of reach of children Read label before use Do not eat, drink or smoke when using this product Wear protective gloves/protective clothing/eye protection/face protection Wash skin thoroughly after handling IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing If eye irritation persists get medical advice/attention Other Non-GHS Classification: WHMIS D2B E Created by Global Safety Management, Inc. -Tel: 1-813-435-5161 - www.gsmsds.com Safety Data Sheet according to 29CFR1910/1200 and GHS Rev. 3 Effective date : 12.12.2014 Page 2 of 7 Sodium Carbonate,Anhydrous NFPA/HMIS NFPA SCALE (0-4) HMIS RATINGS (0-4) SECTION 3 : Composition/information on ingredients Ingredients: CAS 497-19-8 Sodium Carbonate, Anhydrous 100 % Percentages are by weight SECTION 4 : First aid measures Description of first aid measures After inhalation: Move exposed individual to fresh air.
    [Show full text]
  • Disposal of Solid Chemicals in the Normal Trash
    Disposal of Solid Chemicals in the Normal Trash Many solid chemicals can be safety discarded into the normal trash, provided they are in containers that are not broken or cracked and have tightly fitting caps. These chemicals are considered acceptable for ordinary disposal because they display none of the properties of hazardous waste, are of low acute toxicity, and have not been identified as having any chronic toxic effects as summarized in the National Institute of Occupational Safety and Health (NIOSH) “Registry of Toxic Effects of Chemical Substances”. Examples of chemicals acceptable for disposal as regular trash are listed below. To dispose of these chemicals, place the containers in a box lined with a plastic bag, tape the top of the box shut, write “Normal Trash” on the box and then place the box next to the lab trash container. Only solid forms of these chemicals can be disposed in this manner. Any questions about these chemicals or other chemicals that may be disposed of in the normal trash should be directed to the Hazardous Materials Technician (610) 330-5225. Chemicals Generally Acceptable for Disposal as Regular Trash Acacia powder, gum Detergent (most) Methyl salicylate Sodium carbonate arabic Cation exchange resins Methylene blue Sodium chloride Acid, Ascorbic Chromatographic Methyl stearate Sodium citrate Acid, Benzoic absorbents Nutrient agar Sodium dodecyl sulfate Acid, Boric Crystal violet Octacosane (SDS) Acid, Casamind Dextrin Parafin Sodium formate Acid, Citric Dextrose Pepsin Sodium iodide Acid, Lactic Diatomaceous
    [Show full text]
  • Ca-Sic O (Coin Atm.) Scrubber
    United States Patent 19 (11) 4,197,421 Steinberg 45 Apr. 8, 1980 54 SYNTHETIC CARBONACEOUS FUELS AND 4,076,761 2/1978 Chang et al. .................... 260/676 R FEED STOCKS Primary Examiner-C. Davis (75) Inventor: Meyer Steinberg, Huntington Attorney, Agent, or Firm-R. V. Lupo; Leonard Belkin; Station, N.Y. Cornell D. Cornish 73 Assignee: The United States of America as 57 ABSTRACT represented by the United States This invention relates to the use of a three compartment Department of Energy, Washington, electrolytic cell in the production of synthetic carbona D.C. ceous fuels and chemical feedstocks such as gasoline, 21 Appl. No.: 934,765 methane and methanol by electrolyzing an aqueous sodium carbonate/bicarbonate solution, obtained from 22 Filed: Aug. 17, i978 scrubbing atmospheric carbon dioxide with an aqueous 51 Int. C.’................................................ CO7C 1/12 sodium hydroxide solution, whereby the hydrogen gen 52 U.S. Cl. ..................................... 585/733; 204/98; erated at the cathode and the carbon dioxide liberated in 204/101; 260/449.5 the center compartment are combined thermocatalyti 58) Field of Search ........................ 260/676 R, 449.5; cally into methanol and gasoline blends. The oxygen 204/101,98; 585/733 generated at the anode is preferably vented into the 0. atmosphere, and the regenerated sodium hydroxide (56) References Cited produced at the cathode is reused for scrubbing the U.S. PATENT DOCUMENTS CO2 from the atmosphere. 3,519,488 7/1970 Gimer .................................. 204/103 3,692,649 9/1972 Prigant et al. ....................... 204/10 10 Claims, 1 Drawing Figure NOOH 28 D- AIR'OUT AIR'N' CA-SIC O (COIN ATM.) SCRUBBER NUCLEAR ELECTRICAL POWER TURBO REACTOR GENERATOR U FUEL.
    [Show full text]
  • United States Patent (19) 11 Patent Number: 4,808,406 Brinkman (45) Date of Patent: Feb
    United States Patent (19) 11 Patent Number: 4,808,406 Brinkman (45) Date of Patent: Feb. 28, 1989 54 PREPARATION OF CUPRC HYDROXDE 3,194,749 7/1965 Furness ................................. 204/96 COMPOSITIONS 3,231,464 1/1966 Dettwiler et al. .................. 424/140 3,428,731 2/1969 Furness ............................... 424/40 (75) Inventor: Norman C. Brinkman, Houston, Tex. 3,628,920 12/1971 Barker ................................... 23/315 3,635,668 1/1972 Barker ................................... 23/147 73 Assignee: Kocide Chemical Corporation, 4,418,056 11/1983 Gonzales ............................. 424/142 Houston, Tex. 4,490,337 12/1984 Richardson ..................... 423/604X (*) Notice: The portion of the term of this patent subsequent to Dec. 25, 2001 has been OTHER PUBLICATIONS disclaimed. Merck Index-9th ed, 1976, pp. 2631 & 1484. Butts-"Copper, The Science & Technology of Metal, (21) Appl. No.: 901,965 its Alloys & Cpds', pp. 813-815 (1970). 22 Filed: Aug. 28, 1986 Mellor-Comprensive Treatise of Inorganic & Theoreti cal Chemistry, vol. 3, pp. 142-146, 267-268, (1973). - Related U.S. Application Data Primary Examiner-Leonard Schenkman (63) Continuation of Ser. No. 678,291, Dec. 5, 1984, aban Attorney, Agent, or Firm-Kenneth H. Johnson; Richard doned. L. Moseley (51) Int. Cl* ............................................ A01N 59/20 57 ABSTRACT 52 U.S. C. ...................................... 424/140; 423/42; 423/43; 423/604; 424/143 A method for producing finely divided stable cupric 58) Field of Search ......................... 424/140; 423/604 hydroxide composition of low bulk density comprising contacting solutions of an alkali metal carbonate or 56) References Cited bicarbonate and a copper salt, precipitating a basic cop U.S.
    [Show full text]
  • SERELISA Paratb Ab Mono Indirect MSDS.Pdf
    Issue date: 28-December-2016 Version number: 01 SAFETY DATA SHEET 1. Identification Product identifier SERELISA® ParaTB Ab Mono Indirect Other means of identification Synonyms Mycobacterium paratuberculosis Antibody Test Kit * SERELISA ParaTB * USDA #5064.01 Recommended use of the chemical and restrictions on use Recommended use Veterinary product used as diagnostic aid Restrictions on use Not for human use Details of manufacturer or importer Company Name (AU) Zoetis Australia Pty Ltd ABN 94 156 476 425 Level 6, 5 Rider Boulevard Rhodes NSW 2138 AUSTRALIA Tel 1800 814 883 Fax (02) 8876 0444 Email [email protected] Emergency Phone 1800 814 883 (all hours) Police and Fire Brigade Dial 000 If ineffective Dial Poisons Information Centre (13 1126 from anywhere in Australia) 2. Hazard(s) identification Classification of the hazardous chemical Physical hazards Not classified. Health hazards Skin corrosion/irritation Category 2 Serious eye damage/eye irritation Category 2A Sensitization, skin Category 1 Reproductive toxicity Category 1A Environmental hazards Hazardous to the aquatic environment, acute Category 3 hazard Hazardous to the aquatic environment, Category 3 long-term hazard Label elements, including precautionary statements Hazard symbol(s) Health Exclamation hazard mark Signal word Danger Hazard Statement(s) Causes skin irritation. May cause an allergic skin reaction. Causes serious eye irritation. May damage fertility or the unborn child. Harmful to aquatic life with long lasting effects. Precautionary Statement(s) Prevention Obtain special instructions before use. Do not handle until all safety precautions have been read and understood. Avoid breathing mist or vapour. Wash thoroughly after handling. Contaminated work clothing should not be allowed out of the workplace.
    [Show full text]
  • Lab 7: What Is That White Powder? Goals: the Goal of This Lab Is to Identify All Five of the Unknown White Powders You Are Given
    Chemistry 108, Spring 2017 Lab 7: What is That White Powder? Goals: The goal of this lab is to identify all five of the unknown white powders you are given. Each of these powders can be superficially described as a “dry white powder”, but they have different chemical and physical properties. You will need to develop your own procedure for this lab by reading the material given in this hand out. You will show your procedure to an instructor and it must be accepted before you can begin the lab. The possibilities of the unknown solids are given in the table below. FORMULA NAME USE NaCl sodium chloride Table salt NaHCO3 sodium bicarbonate Baking soda C12H22O11 sucrose Table sugar C6H12O6 glucose/dextrose Sweetener CaSO4 calcium sulfate Plaster of Paris (C6H12O6)n cornstarch Thickener MgSO4·7H2O magnesium sulfate (hydrated) Epsom Salts Na2B4O7 sodium tetraborate Borax KHC4H4O6 potassium bitartrate Cream of Tartar CaCO3 calcium carbonate Chalks, antacids NaOH sodium hydroxide Lye, drain cleaner Na2CO3 sodium carbonate Washing soda Procedure: You will need to develop your own procedure for this lab by reading the material given in this hand out. You will show your procedure to an instructor and it must be accepted before you can begin the lab. NOTE: You do not have to carry out each test on each powder. Tests You Can Perform: I. Solubility A. Water Solubility Eight of the twelve possible powders are soluble in water (dissolve in water). The four that are insoluble are calcium sulfate, calcium carbonate, cornstarch, and potassium bitartrate. To test water solubility, add a pea-sized sample to a test tube, and about 5 mL of water, stopper and shake the test tube.
    [Show full text]
  • Cupric Carbonate
    Safety Data Sheet Cupric Carbonate SECTION 1. IDENTIFICATION Product Identifier Cupric Carbonate Other Means of Basic Copper Carbonate Identification Product Code(s) CU1010, CU1020 Product Family Inorganic Solid Recommended Use Laboratory and industrial use. Restrictions on Use None known. Supplier Identifier Alphachem Limited, 2485 Milltower Court, Mississauga, Ontario, L5N 5Z6, (905) 821-2995 Emergency Phone No. CANUTEC CANADA, 613-996-6666, 24 Hours SDS No. 0988 SECTION 2. HAZARD IDENTIFICATION Classified according to Canada's Hazardous Products Regulations (WHMIS 2015) and the US Hazard Communication Standard (HCS 2012). Classification Acute toxicity (Oral) - Category 4 Label Elements Signal Word: Warning Hazard Statement(s): Harmful if swallowed. Precautionary Statement(s): Prevention: Wash hands and skin thoroughly after handling. Do not eat, drink or smoke when using this product. Response: IF SWALLOWED: Call a POISON CENTRE or doctor if you feel unwell. Rinse mouth. Storage: Store away from incompatible materials. Disposal: Dispose of contents and container in accordance with local, regional, national and international regulations. Other Hazards None known. Product Identifier: Cupric Carbonate Date of Preparation: April 20, 2017 Page 01 of 06 SECTION 3. COMPOSITION/INFORMATION ON INGREDIENTS Substance: Chemical Name CAS No. % Other Identifiers Copper(II) carbonate hydroxide (2:1:2) 12069-69-1 > 99 Basic Copper Carbonate SECTION 4. FIRST-AID MEASURES First-aid Measures Inhalation Remove source of exposure or move to fresh air. Keep at rest in a position comfortable for breathing. Call a Poison Centre or doctor. Skin Contact Immediately wash gently and thoroughly with lukewarm, gently flowing water and mild soap for 15-20 minutes. If skin irritation occurs, get medical advice or attention.
    [Show full text]