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Hold a thermometer with its bulb in the naphthalene. Put 2 cm of naphthalene flakes in a test-tube. See diagram 3.2: Approximate melting point of naphthalene. Please send comments to: Chemistry, boiling point, melting point, solubilityģ.5.1 Boiling point of sodium chloride solutionģ.30.8 Decomposition of hydrates, hydrous saltsģ.30.2 Decomposition of hydrogen carbonatesģ.30.14 Decomposition of metals, metallic saltsģ.30.0 Heat substances that decompose and lose mass when heatedģ.29 Collect and weigh the gaseous products ofģ.30 Heat substances that decompose and lose massģ.4.0 Impurities affect the melting point of a substanceģ.3.0 Melting points of naphthalene with a capillary tubeģ.24.1 Separate by chromatography, mixed inksģ.24 Separate by chromatography, green leaf pigmentsģ.20 Separate by distillation, distil ink to form waterģ.25 Separate by heating, gases dissolved in waterģ.18 Separate by melting points, tin from a tin and carbon mixtureģ.22 Separate by solubility, salt from salt and sand mixtureģ.19 Separate by sublimation, naphthaleneģ.21 Separate crude oil fractions by fractional distillationģ.26 Separate two immiscible liquids of different densityģ.27 Separate two solids using density differencesġ0.12.1 Separate by solvent extraction of oil from peanutsģ.10 Solubility and temperature, solubility ofģ.11 Solubility in water at a given temperatureģ.9 Solubility in water of different saltsġ0.3.1 Shrinking mixture of liquids, lost volume Chemistry, boiling point, melting point, solubility.