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Density and Specific Gravity (Specific Gravity Bottle method)

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The objective of this lab is to measure and study density and specific gravity of different liquids.

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Density and Specific Gravity (Specific Gravity Bottle method)

  1. 1. Koya University Faulty of Engineering School of Petroleum & Chemical Engineering Chemical Engineering department Laboratory of petroleum and gas properties EXPERIMENT NUMBER ONE Density and Specific Gravity (Specific Gravity Bottle method) Instructor: Mr. abdulmajid & miss cheeman Author Name: Aree Salah Tahir Experiment Contacted on: 8/oct/2013 Report Submitted on: 22/oct /2013 Group: A
  2. 2. The aim of this experiment: The objective of this lab is to measure and study density and specific gravity of different liquids.
  3. 3. Theory: of a substance is its weight per unit)ρdensity (The volume. For liquid systems, the SG is definedSpecific gravity (SG) as the ratio of density of a liquid to that of water, and therefore, it is a dimensionless quantity. However, the temperature at which SG is reported should be specified since the density is temperature dependent. For liquid petroleum fractions and crude oils, densities of both the oil and water are expressed at the SC of (15.5 o C) and 1 atm, and they are usually indicated as SG at 15.5 o C. Thermal expansion coefficient of acetone = 0.00143 / 0 C
  4. 4. Density of water at 15 0 C is 0.999099 g/cmThe American Petroleum Institute Gravity (API gravity), is a measure of how heavy or light a petroleum liquid is compared to water. Petroleum is lighter than water and floats: API gravity > 10 Petroleum is heavier than water and sinks: API gravity < 10
  5. 5. EQUIPMENT and COMPONENTS USED: Balance: Thermometer: cylinder:
  6. 6. The procedure: A:Weigh the bottle while it's empty B:Fill the bottle up to the volume marker with the acetone .The sample is generally taken while the liquid is at some reference temperature, such as 20 degrees Celsius. C:Weigh the bottle again and subtract the weight of the empty bottle from the total weight of the bottle and liquid.
  7. 7. Calculations: Volume= 100ml Mass of cylinder =144.8 g Mass of (aceton + cylinder)= 222g Tref= 25c⁰ TACTUAL=23.8c⁰ ∆mass =222-144.8=77.2 g ρ=mass/volume =77.2/100=0.772 g/ml s.p.g.r= ρ/ρref = 77.2/1000 = 0.0772 g/ml
  8. 8. Discussion:
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The objective of this lab is to measure and study density and specific gravity of different liquids.

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