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

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

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. 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. EQUIPMENT and COMPONENTS USED:
Balance:
Thermometer: cylinder:

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. 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. Discussion: