Essays about: "Cellulose Nitrate"

Showing result 1 - 5 of 7 essays containing the words Cellulose Nitrate.

  1. 1. A GREENER SOLUTION Investigating the potential use of Green Solvents to remove cellulose nitrate lacquer from silver objects

    University essay from Göteborgs universitet/Institutionen för kulturvård

    Author : Borén Evelina; [2022-07-05]
    Keywords : Sustainable Conservation; Green Solvents; Cellulose Nitrate; Lacquer; Coating; Silver;

    Abstract : This thesis investigates the performance of non-hazardous solvent substitutes, so called “Green Solvents", for the removal of aged and unaged cellulose nitrate lacquer from silver surfaces. Literature research and preliminary tests resulted in four solvents of interest: ethyl acetate, ethyl lactate, propylene carbonate and dimethyl carbonate. READ MORE

  3. 2. The Use of Gels for the Removal of Cellulose Nitrate Lacquer on Silver

    University essay from Göteborgs universitet/Institutionen för kulturvård

    Author : Miri Katayon; [2022-07-05]
    Keywords : agar gel; metal conservation; nanomaterials; silver coating; sustainable conservation; varnish removal;

    Abstract : The conservation of silver objects mainly constitutes addressing the issues of tarnish removal and of preventing tarnish. For decades lacquer has been used to coat silver objects in order to protect them from tarnishing. READ MORE

  4. 3. Evaluation of filter and extraction kits for eDNA-based quantification of Northern pike density

    University essay from SLU/Dept. Of Aquatic Resources

    Author : Ofir Svensson; [2021]
    Keywords : Blood and Tissue; Chelex 100; cellulose nitrate membrane filter; COI; extraction kit; filter; glass microfiber filter; pike; PowerWater; quantitative eDNA;

    Abstract : Multi-mesh gillnets are the most common gear in Swedish fish monitoring programs. The method works for many fish species but has limitations. READ MORE

  5. 4. The effect of different carbon sources on reduction of nitrate in effluent from the mining industry : Olika kolkällors inverkan på reduktion av nitrat i processvatten från gruvindustrin

    University essay from

    Author : Hanna Lindberg; [2014]
    Keywords : Denitrification; mine effluent; nitrogen; external carbon; sediment;

    Abstract : Mine water effluent contains high levels of nitrogen due to residues from undetonated ammonium- nitrate based explosives. Excess nitrogen in aquatic ecosystems can cause eutrophication. READ MORE

  6. 5. Chemical Characterisation of Nitrocellulose

    University essay from Örebro universitet/Institutionen för naturvetenskap och teknik

    Author : Kim Aarseth Larsson; [2014]
    Keywords : nitrocellulose; cellulose nitrate; guncotton; highly-nitrated; characteristics; gc ms; gas chromatography; mass spectrometry; ftir; fourier transform infrared spectroscopy; uatr; universal attenuated total reflectance; ammunition; propellant; explosive;

    Abstract : Nitrocellulose is the main component in many types of ammunition, propellants and explosives. The principles of production for nitrocellulose have not changed much since the 19th century when it started being industrially produced for this purpose. The character of the nitrocellulose has a large effect on the end products abilities. READ MORE