DOCSLIB.ORG

1,399,500. Patented Dec, 6, 1921

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
1,399,500. Patented Dec, 6, 1921 C, R, KUAE PR0 (CESS OF MANUFACT UR | N G | TH 0P 0 N E À PPLICATION FILED AUG, 15, 1921, 1,399,500. Patented Dec, 6, 1921. UNITED STATES PATENT OFFICE. CHEARTES. R. E.U2ELE, OF CLARKDALE, ARIZONA. SLLaLLLLLLL0LLLL GLLLLS LLLLLLLYLLLLLLLY LLLL LLLLLLLLS LLLGLLGGLGLLYS 1,399,500. specification of Tetters Patent, latented Dec. 6, 1921. Application filed August 15, 192i. Serial No. 492,342. ?? ??? ?????? ?? ???? ???????"?, these tanks) in which the crude lithopone Be it known that II, CHARLES R. KUZELL, is allowed to thicken by settling until it is a citizen of the United States, residing at concentrated to a Suitably dense pulp after Clarkdale, in the county of Yavapai and which it is drawn off by a high pressure 60 State of Arizona, have invented certain new pump 2 and discharged through suitable and useful Improvements in Processes of Spray nozzles 3 into a desiccating chamber 4 Manufacturing Lithopone, of which the fol through which the fine snray is carried by lowing is a specification. a current of air admitted to the chamber 4. My invention has relation to improve through a spray head 5 terminating the air 65 ments in the manufacture of lithopone, the Supply conduit 6. The air current and the process of which consists in the novel com finely divided lithopone are thoroughly bination of steps more fully set forth here mixed in the desiccating chamber, the latter inafter. being carried through the chamber by the The object of the present invention is to air current, which dries the lithopone as it 70 15 simplify the present method of manufac is carried through the chamber. The dried ture of lithopone by eliminating all the lithopone is discharged from the chamber steps subsequent to the precipitation of 4 through a conduit 7 communicating with crude lithopone, and substituting fewer and an electrical precipitation chamber (such simpler steps whereby less plant equipment electrical recipitation being generally 75 20 is required and consequently a reduced cost known as the Cottrell process) where the of operation is accomplished. lithopone held in suspension by the air Lithopone is a white paint pigment and current is precipitated as an extremely consists in a mixture of substantially 70% finely divided powder and in finished con barium sulfate and 30% zinc sulfid although dition. The finely divided lithopone may 80 25 commercially these proportions valry greatly also be collected in a bag house such as is and the lithopone is sold under names that used for collecting the mineral particles indicate the grade. from furnace fume. Briefly the process of manufacture up to As is Well known, lithopone has the prop the precipitation of crude lithopone may be erty of darkening when exposed to the 8 (0 described as follows, reference being had light, and various processes have been 85 to the accompanying drawing showing a evolved with a view of preventing this. flow sheet illustrating the usual practice up This darkening is caused by a reduction of to the precipitation of crude lithopone and the zinc sulfid to metallic zinc and the only the subsequent steps of dehydration and Way to prevent it is by providing a pro 90 35 preparation which constitute my improve tective film over the zinc sulfid. I accom ment : , plish this as follows: Barytes is reduced with coal in a suit The air discharged into the chamber 4 is able furnace and a clear solution of barium heated not only to dry the lithopone but sulfid obtained by lixiviation of the black also cause a superficial oxidation of the zinc 95 40 ash with hot water. The barium sulfid solu sulfid according to the equation ZnS-3O= tion is added to a purified solution of zinc ZnO--SO. sulfate (obtained in any well known man The ZnO forms a protective film around ner such as treating a zinc material with the ZnS and thus prevents darkening of the sulfuric acid) whereupon the crude litho lithopone when exposed to the light. The 00 pone is precipitated. Now, under the pres temperature of the heated air is just suffi ent practice this crude lithopone is sub cient to oxidize the sulfid not to exceed from jected to a number of operations before the 3% to 5% of zinc oxid in the finished litho finished product is obtained such as filter pone, the composition of which would then ing, drying, calcining, quenching in Water, be substantially 105 50 grinding, etc., all of which require equip ment and take time to perform. I have Barium sulfate------------- 68% greatly simplified the refining of le crude Zinc sulfate---------------- 28% lithopone as will be better apparent from Zinc oxid------------------- 4% what follows. a very good grade of lithopone that will 0. 55 Referring to the drawing, 1 represents a not darken on exposure to the light. settling tank (there may be a number of Having described my invention, I claim: 2 1. The hereindescribed method of prepar lithopone from a mixture of barium sulfid ing lithopone which consists in precipitat and zinc sulfate, discharging the liquid con ing crude lithopone from a mixture of bari taining crude lithopone as a fine spray into um sulfid and zinc sulfate solutions, permit a current of heated air whereby the zinc 40 ting the liquid containing crude lithopone sulfid constituent of the lithopone will un to thicken by settling, thereafter spraying dergo a partial Superficial oxidation and the liquid into a drying chamber in contact thereafter collecting the finished product as with air, and precipitating the lithopone as a finely divided powder. a fine powder. 6. The process of manufacturing litho 45 10 2. The process of manufacturing litho pone which consists in precipitating crude pone which consists in precipitating crude lithopone from a mixture of barium sulfid lithopone from a mixture of barium sulfid and zinc sulfate solutions, permitting the and zinc sulfate solutions, drawing off the liquid containing crude lithopone to thicken liquid containing crude lithopone and dis by settling, discharging the thickened liquid 50 15 charging the same as a fine spray into a cur as a fine spray into an oxidizing atmosphere rent of air whereby it will be dried as a fine heated sufficiently to cause partial superfi powder and collecting the powder so formed. cial oxidation of the zinc sulfid ingredients, 3. In the manufacture of lithopone, the and thereafter collecting the finished prod process which comprises the precipitation of uct as a finely divided powder. 55 20 crude lithopone from a mixture of barium 7. The process of manufacturing litho sulfid and zinc sulfate solutions, thickening pone which consists in precipitating crude the precipitated lithopone by settling, draw lithopone from a mixture of barium sulfid ing off the liquid so thickened and discharg and zinc sulfate solutions, permitting the ing the same as a fine spray into a drying liquid containing crude lithopone to thicken 60 25 chamber and thereafter collecting the litho by settling, discharging the thickened liquid pone as a finely divided powder. as a fine spray into an oxidizing atmosphere 4. In the manufacture of lithopone, the heated sufficiently to cause partial superfi process which comprises the precipitation of cial oxidation of the zinc sulfid ingredients, crude lithopone from a mixture of barium and thereafter conducting the dried litho 65 30 sulfid and zinc sulfate solutions, drawing off pone to an electrical precipitation chamber the liquid and discharging the same as a fine where the lithopone is precipitated as a finely spray into a drying chamber and thereafter divided powder. collecting the lithopone as a finely divided powder. signature.In testimony whereof I hereunto affix my 35 5. The process of manufacturing litho pone which consists in precipitating crude CHARLES , R. KUZELIL. .
Load more

Recommended publications
  • Word Equations
    Chemical misconceptions 33 Word equations Target level These materials are designed for use with 11–14 year old students who have been taught to use word equations. The materials will also be useful for 14–16 year olds students who need to revisit this topic. Topic Using word equations to represent chemical reactions. Rationale Many students find it difficult to write word equations, which require an appreciation of the nature of chemical change (including conservation of matter), and familiarity with chemical names and the patterns of common reaction types. These materials provide probes for exploring whether students can complete word equations, and a set of practice exercises. These ideas are discussed in Chapter 9 of the Teachers’ notes. In the pilot teachers judged the materials ‘excellent’, ‘very useful’ and ‘helpful for revision’. Some teachers found the responses of some of their pupils to be ‘disappointing’ (or even ‘shocking’). The probes were thought to provide an interesting ‘look into [students’] minds’ and to lead to useful classroom discussion. Although teachers found it useful that students were asked to give reasons for their answers, some of the students did not like having to try to explain their reasons. (Some teachers may wish to ask students to just complete the equations in the probes, and to leave the spaces for making notes when going through the answers.) Students were reported to find the materials helpful and easy to follow, and were considered to have greater understanding afterwards. Instructions These materials may either be used with students who should have mastered word equations as a pre-test (to identify students needing practice), a remedial exercise, and a post-test; or as end-of-topic review material with students meeting word equations for the first time.
    [Show full text]
  • Zinc Sulphate
    RISK ASSESSMENT REPORT ZINC SULPHATE CAS-No.: 7733-02-0 EINECS-No.: 231-793-3 GENERAL NOTE This document contains: - part I Environment (pages 41) - part II Human Health (pages 130) R076_0805_env RISK ASSESSMENT ZINC SULPHATE CAS-No.: 7733-02-0 EINECS-No.: 231-793-3 Final report, May 2008 PART 1 Environment Rapporteur for the risk evaluation of zinc sulphate is the Ministry of Housing, Spatial Planning and the Environment (VROM) in consultation with the Ministry of Social Affairs and Employment (SZW) and the Ministry of Public Health, Welfare and Sport (VWS). Responsible for the risk evaluation and subsequently for the contents of this report is the rapporteur. The scientific work on this report has been prepared by the Netherlands Organization for Applied Scientific Research (TNO) and the National Institute of Public Health and Environment (RIVM), by order of the rapporteur. Contact point: Bureau Reach P.O. Box 1 3720 BA Bilthoven The Netherlands R076_0805_env PREFACE For zinc metal (CAS No. 7440-66-6), zinc distearate (CAS No. 557-05-1 / 91051-01-3), zinc oxide (CAS No.1314-13-2), zinc chloride (CAS No.7646-85-7), zinc sulphate (CAS No.7733- 02-0) and trizinc bis(orthophosphate) (CAS No.7779-90-0) risk assessments were carried out within the framework of EU Existing Chemicals Regulation 793/93. For each compound a separate report has been prepared. It should be noted, however, that the risk assessment on zinc metal contains specific sections (as well in the exposure part as in the effect part) that are relevant for the other zinc compounds as well.
    [Show full text]
  • US EPA Inert (Other) Pesticide Ingredients
    U.S. Environmental Protection Agency Office of Pesticide Programs List of Inert Pesticide Ingredients List 3 - Inerts of unknown toxicity - By Chemical Name UpdatedAugust 2004 Inert Ingredients Ordered Alphabetically by Chemical Name - List 3 Updated August 2004 CAS PREFIX NAME List No. 6798-76-1 Abietic acid, zinc salt 3 14351-66-7 Abietic acids, sodium salts 3 123-86-4 Acetic acid, butyl ester 3 108419-35-8 Acetic acid, C11-14 branched, alkyl ester 3 90438-79-2 Acetic acid, C6-8-branched alkyl esters 3 108419-32-5 Acetic acid, C7-9 branched, alkyl ester C8-rich 3 2016-56-0 Acetic acid, dodecylamine salt 3 110-19-0 Acetic acid, isobutyl ester 3 141-97-9 Acetoacetic acid, ethyl ester 3 93-08-3 2'- Acetonaphthone 3 67-64-1 Acetone 3 828-00-2 6- Acetoxy-2,4-dimethyl-m-dioxane 3 32388-55-9 Acetyl cedrene 3 1506-02-1 6- Acetyl-1,1,2,4,4,7-hexamethyl tetralin 3 21145-77-7 Acetyl-1,1,3,4,4,6-hexamethyltetralin 3 61788-48-5 Acetylated lanolin 3 74-86-2 Acetylene 3 141754-64-5 Acrylic acid, isopropanol telomer, ammonium salt 3 25136-75-8 Acrylic acid, polymer with acrylamide and diallyldimethylam 3 25084-90-6 Acrylic acid, t-butyl ester, polymer with ethylene 3 25036-25-3 Acrylonitrile-methyl methacrylate-vinylidene chloride copoly 3 1406-16-2 Activated ergosterol 3 124-04-9 Adipic acid 3 9010-89-3 Adipic acid, polymer with diethylene glycol 3 9002-18-0 Agar 3 61791-56-8 beta- Alanine, N-(2-carboxyethyl)-, N-tallow alkyl derivs., disodium3 14960-06-6 beta- Alanine, N-(2-carboxyethyl)-N-dodecyl-, monosodium salt 3 Alanine, N-coco alkyl derivs.
    [Show full text]
  • Zinc Supplementation in Children and Adolescents with Acute Leukemia
    European Journal of Clinical Nutrition (2013) 67, 1056–1059 & 2013 Macmillan Publishers Limited All rights reserved 0954-3007/13 www.nature.com/ejcn ORIGINAL ARTICLE Zinc supplementation in children and adolescents with acute leukemia LZZ Consolo, P Melnikov, FZ Coˆ nsolo, VA Nascimento and JCDV Pontes BACKGROUND/OBJECTIVES: Zinc is known as an essential micronutrient for human health because of its structural and biochemical functions, influencing growth and affecting multiple aspects of the immune system. Zinc has been extensively studied in neoplastic processes but its role in children with leukemia still remains to be elucidated in several aspects. The aim of this study was to evaluate the effects of oral zinc supplementation on weight gain and infectious episodes in children and adolescents with acute leukemia. SUBJECTS/METHODS: This study included 38 patients, and was carried out as a randomized, double-blind, placebo-controlled investigation. The dosage of plasma zinc levels and the evaluation of nutritional status were performed during a period of 60 days. Zinc was supplemented orally, 2 mg/kg/day, in the form of amino acid salt. RESULTS: The results showed that plasma zinc concentrations did not increase significantly with the addition of the micronutrient. However, from a clinical point of view, it has become evident that supplementary zinc exerts a positive effect on nutritional status as positive weight gain. Moreover, the number of infection episodes was significantly reduced, possibly because of the immune stimuli. CONCLUSIONS:
    [Show full text]
  • ZINCI SULFAS ZINC SULFATE Final Text for Addition to the International
    Document QAS/07.194/FINAL February 2008 . ZINCI SULFAS ZINC SULFATE Zinc sulfate monohydrate Zinc sulfate heptahydrate Final text for addition to The International Pharmacopoeia This monograph was adopted at the Forty-second WHO Expert Committee on Specifications for Pharmaceutical Preparations in October 2007 for addition to the 4 th edition of The International Pharmacopoeia . ZnSO 4,H2O (monohydrate); ZnSO 4,7H2O (heptahydrate) Relative molecular mass. 179.5 (monohydrate); 287.5 (heptahydrate). Chemical name. Zinc sulfate monohydrate; CAS Reg. No. 7446-19-7 (monohydrate). Zinc sulfate heptahydrate; CAS Reg. No. 7446-20-0 (heptahydrate). Description. A white or almost white, crystalline powder, or colourless, transparent crystals. Solubility. Very soluble in water, practically insoluble in ethanol (~750 g/l) TS. Category. Adjunct to oral rehydration salts in( prevention and) treatment of dehydration due to diarrhoea; astringent. Storage. Zinc sulfate should be kept in a well-closed, non-metallic container. Labelling. The designation on the container should state whether the substance is in the monohydrate or heptahydrate form and, where appropriate, that it is suitable for use in the manufacture of parenteral dosage forms. Requirements Definition. Zinc sulfate monohydrate contains not less than 99.0% and not more than 101.0% of ZnSO 4,H2O. Zinc sulfate heptahydrate contains not less than 99.0% and not more than 104.0% of ZnSO 4,7H2O. Document QAS/07.194/FINAL page 2 Identity tests A. Dissolve 0.25 g in 5 ml of water R and add 0.2 ml of sodium hydroxide (400 g/l) TS. A white precipitate is formed. Add a further 2 ml of sodium hydroxide (400 g/l) TS.
    [Show full text]
  • Acute Toxicity of Zinc Sulfate Heptahydrate (Znso4*7H2O) And
    Aquacu nd ltu a r e s e J i o r u e r h n Zeng et al., Fish Aqua J 2018, 9:1 s a i l F Fisheries and Aquaculture Journal DOI: 10.4172/2150-3508.1000240 ISSN: 2150-3508 Research Article Open Access Acute Toxicity of Zinc Sulfate Heptahydrate (ZnSO4*7H2O) and Copper (II) Sulfate Pentahydrate (CuSO4*5H2O) on Freshwater Fish, Percocypris pingi Ling Zeng, Lan Huang, Ming Zhao, Sheng Liu, Zhengjian He, Jupan Feng, Chuanjie Qin and Dengyue Yuan* Department of Aquaculture, College of Life Sciences, Neijiang Normal University, Neijiang, Sichuan, 641100, PR China *Corresponding author: Dengyue Yuan, Department of Aquaculture, College of Life Sciences, Neijiang Normal University, Neijiang, Sichuan, 641100, PR China, Tel: +86(0832) 234-4599; E-mail: [email protected] Received date: February 23, 2018; Accepted date: March 14, 2018; Published date: March 29, 2018 Copyright: © 2018 Yuan D, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Abstract This study was carried out to determine acute toxicity of two heavy metals (zinc and copper) to fingerlings Percocypris pingi by static bioassays. The experimental fish were subjected to a range of concentrations of heavy metals. At different exposure periods (24 h, 48 h, 72 h and 96 h), the mortality rate were separately investigated. The median lethal concentration (LC50) was determined with Probit analysis. The LC50 values of zinc for the Percocypris pingi at 24 h, 48 h, 72 h and 96 h were 3.504 mg/L, 2.933 mg/L, 2.852 mg/L and 2.852 mg/L, respectively.
    [Show full text]
  • C09c - 2020.01
    CPC - C09C - 2020.01 C09C TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES (preparation of inorganic compounds or non-metallic elements C01; treatment of materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone C04B 14/00, C04B 18/00, C04B 20/00); PREPARATION OF CARBON BLACK; {PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS} Definition statement This place covers: The treatment of inorganic compounds other than fibrous fillers, to enhance their pigmenting or filling properties; Preparation of carbon black. Preparation of inorganic materials being no single chemical compounds and used as pigments or fillers. References Limiting references This place does not cover: Treatment by polymerisation onto particle is classified in C08F 292/00. Only treatment by already polymerised agents is classified in C09C. Special rules of classification The following IPC groups are not used in the internal CPC classification scheme. Subject matter covered by these groups is classified in the following CPC groups: IPC group C09C1/68 is covered by CPC group C09K 3/14. Whenever in groups C09C 1/00 - C09C 1/66 the materials consist of a particulate core bearing a coating or any other deposit, classification is done only according to the composition of the core, unless otherwise stated, e.g. C09C 1/0015, C09C 1/0078. Preparations of materials which are no single chemical compounds, mainly comprising ceramic pigments (C09C 1/0009),consisting of solid solutions or polycristalline structures, and compounds defined as composite materials (C09C 1/0081).Preparation and treatment steps are not always easy to distinguish from each other, e.g.
    [Show full text]
  • Zinc Therapy in Dermatology: a Review
    Hindawi Publishing Corporation Dermatology Research and Practice Volume 2014, Article ID 709152, 11 pages http://dx.doi.org/10.1155/2014/709152 Review Article Zinc Therapy in Dermatology: A Review Mrinal Gupta, Vikram K. Mahajan, Karaninder S. Mehta, and Pushpinder S. Chauhan DepartmentofDermatology,Venereology&Leprosy,Dr.R.P.Govt.MedicalCollege,Kangra(Tanda),HimachalPradesh176001,India Correspondence should be addressed to Vikram K. Mahajan; [email protected] Received 1 May 2014; Accepted 23 June 2014; Published 10 July 2014 Academic Editor: Craig G. Burkhart Copyright © 2014 Mrinal Gupta et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Zinc, both in elemental or in its salt forms, has been used as a therapeutic modality for centuries. Topical preparations like zinc oxide, calamine, or zinc pyrithione have been in use as photoprotecting, soothing agents or as active ingredient of antidandruff shampoos. Its use has expanded manifold over the years for a number of dermatological conditions including infections (leishmaniasis, warts), inflammatory dermatoses (acne vulgaris, rosacea), pigmentary disorders (melasma), and neoplasias (basal cell carcinoma). Although the role of oral zinc is well-established in human zinc deficiency syndromes including acrodermatitis enteropathica, it is only in recent years that importance of zinc as a micronutrient essential for infant
    [Show full text]
  • Chemical Reactions. Balance Each Equation. 1. Zinc + Copper (II) Sulfate → Copper + Zinc Sulfate Zn + Cuso4 → Cu + Znso4 2
    Chemical Reactions. Balance Each Equation. 1. zinc + copper (II) sulfate → copper + zinc sulfate Zn + CuSO4 → Cu + ZnSO4 2. potassium chlorate → potassium chloride + oxygen 2KClO3 → 2KCl + 3 O2 3. potassium iodide + lead (II) nitrate → lead (II) iodide + potassium nitrate 2KI + Pb(NO3)2 → PbI2 + 2KNO3 4. iron (III) oxide + carbon → iron + carbon monoxide Fe2O3 + 3C → 2Fe + 3CO 5. iron + water → hydrogen + iron (III) oxide 2Fe + 3H2O → 3H2 + Fe2O3 6. aluminum + sulfuric acid → aluminum sulfate + hydrogen 2Al + 3H2SO4 → Al2(SO4)3 + 3H2 7. magnesium chloride + ammonium nitrate → magnesium nitrate + ammonium chloride MgCl2 + 2NH4NO3 → Mg(NO3)2 + 2NH4Cl 8. mercury (II) oxide → mercury + oxygen 2HgO → 2Hg + O2 9. sodium carbonate + calcium hydroxide → sodium hydroxide + calcium carbonate 2Na2CO3 + Ca(OH)2 → 2NaOH + CaCO3 10. phosphorus + oxygen → phosphorus pentoxide 2P + 5O2 → 2PO5 11. sodium + water → sodium hydroxide + hydrogen 2Na + 2HOH → 2NaOH + H2 12. zinc + sulfuric acid → zinc sulfate + hydrogen Zn + H2SO4 → ZnSO4 + H2 13. calcium oxide + water → calcium hydroxide CaO + H2O → Ca(OH)2 14. iron + copper (I) nitrate → iron (II) nitrate + copper Fe + 2CuNO3 → Fe(NO3)2 + 2Cu 15. potassium oxide + water → potassium hydroxide K2O + H2O → 2KOH 16. ammonium sulfide + lead (II) nitrate → ammonium nitrate + lead (II) sulfide (NH4)2S + Pb(NO3)2 → 2NH4NO3 + PbS 17. mercury (II) hydroxide + phosphoric acid → mercury (II) phosphate + water 3Hg(OH)2 + 2H3PO4 → Hg3(PO4)2 + 6H2O 18. potassium hydroxide + phosphoric acid → potassium phosphate + water 3KOH + H3PO4 → K3PO4 + HOH 19. calcium chloride + nitric acid → calcium nitrate + hydrochloric acid CaCl2 + 2HNO3 → Ca(NO3)2 + 2HCl 20. potassium carbonate + barium chloride → potassium chloride + barium carbonate K2CO3 + BaCl2 → 2KCl + BaCO3 21.
    [Show full text]
  • Wettable Powder Versus Tank-Mix Dithiocarbamates on Potatoes and Tomatoes in Ohio
    RESEARCH CIRCULAR 9 APRIL 11953 WETTABLE POWDER versus TANK-MIX DITHIOCARBAMATES on POTATOES and TOMATOES 1n• OHIO • J. D. WILSON • OHIO AGRICULTURAL EXPERIMENT STATION W 0 0 S T E R, 0 H I 0 CONTENTS * * Introduction .. 3 Preliminary Work 4 Results and Discussion 6 Conclusions ..... 19 Literature Citations . 20 Appendix .... .. 21 WETTABLE POWDER VERSUS TANK-MIX DITHIOCARBAMATES ON POTATOES AND TOMATOES IN OHIO J. D. WILSON INTRODUCTION The dithiocarbamates have now been used as fungicides in Ohio, experimentally or otherwise, for more than 15 years ( 4) . F ermate (ferbam), or ferric dimethyl dithiocarbamate, was the first of these to be used on tomatoes and potatoes, to which it was applied both as spray and dust mixtures prepared from a wettable powder formulation ( 1, 2). Dithane and Parzate have now been tested experimentally for several years both as wettable powders (zineb) and as "tank-mix" formulations of solubilized zinc sulfate plus liquid disodium ethylene bis dithiocarbamate (nabam). There has always been some question as to which type of formulation is capable of giving the best control of such diseases as the early and late blights of potato and tomato ( 10, 12). During the same period, as good or better results were being obtained with a slurry form of zinc dimethyl dithiocarbamate than with the cor­ responding wettable powders known as Zerlate and Methasan (ziram) (16,17,18). The wettable powder formulations of such fungicides as ferbam, ziram, and zineb are prepared by the manufacturer for use in spray and dust applications. The active ingredients of these powder formulations, which are comparatively insoluble and non-wettable, are made wettable by adding wetting and/or conditioning agents.
    [Show full text]
  • Treatment of Pityriasis Versicolour with Topical 15% Zinc Sulfate Solution
    Treatment of Pityriasis Versicolour with Topical 15% Zinc Sulfate Solution Khalifa E. Sharquie Wisam S. Al- Dori MD; PhD. MD; FIBMS. Inas K. Sharquie Adil A. Al– Nuaimy BSc; MSc. MD; DDV; FICMS. Abstract Background: Pityriasis versicolour is a common skin problem of cosmetic importance among young individuals. Many modality of the treatment have been used to control this disease, but often end with relapse. Zinc sulfate had been proven to have antifungal activity invitro study. Still we are searching for a new therapeutic agent like zinc sulfate. Objective: The aim of the present work is to assess the therapeutic effectiveness of topical 15% zinc sulfate solution in treatment of tinea versicolor. Patients& Methods: This single blinded controlled therapeutic trail was carried out in Department of Dermatology and Venereology - Baghdad Teaching Hospital, during the period from May 2004- Sept. 2004. Patients consisted of 60 person (40 males&20 females) and their ages ranged from 15 – 45 years with a mean ± SD of 32 ± 3 years, while the duration of the disease was 2-30 ( 5.18 ± 4.77) months. These patients were enrolled in this study and were divided into two groups:- Group A: Thirty patients (16 males and 14 females) were treated with topical 15% zinc sulfate solution once daily and examine every week for three weeks and followed up for one month without therapy. Mycological and Wood's light examination were performed to establish diagnosis before therapy and repeated every week to asses the response to therapy. Group B: Thirty patients (24 males and 6 females) were treated with distilled water as a placebo treated group and with a similar manner in group A.
    [Show full text]
  • Zinc Sulfate Monohydrate Creation Date 21
    SAFETY DATA SHEET according to Regulation (EC) No 1907/2006 (REACH) as amended Zinc sulfate monohydrate Creation date 21. September 2019 Revision date Version 1.0 SECTION 1: Identification of the substance/mixture and of the company/undertaking 1.1. Product identifier Zinc sulfate monohydrate Substance / mixture substance Chemical name zinc sulphate (hydrous) (mono-, hexa- and hepta hydrate) CAS number 7446-19-7 Index number 030-006-00-9 EC (EINECS) number 231-793-3 1.2. Relevant identified uses of the substance or mixture and uses advised against Substance's intended use Chemical production, analytical chemistry, laboratory synthesis, industrial applications. Substance uses advised against The product should not be used in ways other then those referred in Section 1. Chemical safety report 1.3. Details of the supplier of the safety data sheet Supplier Name or trade name Ing. Petr Švec - PENTA s.r.o. Address Radiová 1122/1, Praha 10, 102 00 Czech Republic Identification number (CRN) 02096013 VAT Reg No CZ02096013 Phone +420 226 060 681 E-mail [email protected] Web address www.pentachemicals.eu Competent person responsible for the safety data sheet Name Ing. Petr Švec - PENTA s.r.o. E-mail [email protected] 1.4. Emergency telephone number National Health Service (NHS) 111 National poisoning information centre Scotland, NHS 24: 111 SECTION 2: Hazards identification 2.1. Classification of the substance or mixture Classification of the substance in accordance with Regulation (EC) No 1272/2008 The substance is classified as dangerous. Acute Tox. 4, H302 Eye Dam. 1, H318 Aquatic Acute 1, H400 Aquatic Chronic 1, H410 Full text of all classifications and hazard statements is given in the section 16.
    [Show full text]