Sökning: "3H2O"

Visar resultat 1 - 5 av 6 avhandlingar innehållade ordet 3H2O.

  1. 1. Crystallization of Metal Fluoride Hydrates from Mixed Acid Solutions

    Författare :Kerstin Forsberg; Åke Rasmuson; Alison Lewis; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; crystallization; crystal growth; b-FeF3.3H2O; iron fluoride trihydrate; CrF3.3H2O; pickling; pickle bath; hydrofluoric acid; nitric acid; stainless steel; Chemical engineering; Kemiteknik;

    Sammanfattning : In this work crystal growth and nucleation of b-FeF3×3H2O and crystallization of chromium (III), iron (III) and nickel (II) fluoride hydrates from mixed acid (1-3 mol/kg HNO3 and 1-6 mol/kg free HF) have been investigated. The solubility of b-FeF3×3H2O has been determined in solutions of different hydrofluoric acid (1-7mol/ kg) and nitric acid (0-7mol/ kg) concentrations at 30, 40 and 50°C. LÄS MER

  3. 2. Contaminant transport in non-uniform streams and streambeds

    Författare :Jonas K. Forsman; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Earth sciences; Sub-surface transient storage; reactive tracers; analytical solutions; Geovetenskap; Earth sciences; Geovetenskap; Sedimentology; sedimentologi;

    Sammanfattning : The interplay between hydraulic and chemical processes in streams and adjacent storage zones, e.g. streambed sediments, is of crucial importance for the large-scale transport of released contaminants. This thesis presents a methodology for tracer experiments and the development of mechanistic transport models. LÄS MER

  4. 3. Glucuronyl C5-epimerases in the biosynthesis of glycosaminoglycans

    Författare :Åsa Hagner McWhirter; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Biochemistry; Biokemi; Biochemistry; Biokemi; Medical and Physiological Chemistry; medicinsk och fysiologisk kemi;

    Sammanfattning : This thesis is focused on two enzymes, both glucuronyl CS-epimerases, that catalyse the conversion of D-glucuronic acid (GlcA) into L-iduronic acid (IdoA) residues in the repeating disaccharide units of heparin/heparan sulphate (HS) and dermatan sulphate (DS) polymers. These glycosaminoglycans are produced as proteoglycans, in which linear polysaccharide chains are attached covalently to a protein core. LÄS MER

  5. 4. Phase transitions in porous media studied by NMR

    Författare :Dulce Vargas-Florencia; Istvan Furo; Magnus Nydén; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physical chemistry; Fysikalisk kemi;

    Sammanfattning : This Thesis presents studies of phase transitions ocurring in porous media. The investigated phase transitions include melting/crystallization, surface pre-melting and liquid-liquid phase separation of binary mixtures. LÄS MER

  7. 5. Intrinsic kinetics of some high temperature gas-solid reactions

    Författare :Ioannis Arvanitidis; KTH; []
    Nyckelord :;

    Sammanfattning : Many materials processes are based on gas-solid reactions.An understanding of the mechanisms underlying these reactionsis essential for optimization of the process parameters andinvention of new process routes. LÄS MER