Essays about: "cellulose nitrate"
Showing result 1 - 5 of 7 essays containing the words cellulose nitrate.
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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 kulturvårdAbstract : 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
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2. The Use of Gels for the Removal of Cellulose Nitrate Lacquer on Silver
University essay from Göteborgs universitet/Institutionen för kulturvårdAbstract : 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
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3. Evaluation of filter and extraction kits for eDNA-based quantification of Northern pike density
University essay from SLU/Dept. Of Aquatic ResourcesAbstract : 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
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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 fromAbstract : 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
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5. Chemical Characterisation of Nitrocellulose
University essay from Örebro universitet/Institutionen för naturvetenskap och teknikAbstract : 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