O que é Densidade

Substance Density in kg/m3

Iridium 22,650

Osmium 22,610

Platinum 21,450

Gold 19,300

Uranium 19,050

Mercury 13,580

Gasoline      730

Palladium 12,023

Lead 11,340

Silver 10,490

Copper   8,920

Iron   7,870

Tin   7,310

Titanium   4,507

Diamond   3,500

Aluminium   2,700

Magnesium   1,740

Seawater   1,025

Water   1,000

Ethyl alcohol      790

The densest naturally occurring substance on Earth is Iridium, at about is 22,650 kg/m3.

Mini-quiz

1. Why is the density of water equal to 1?• It just happened to equal 1• Because there is more water than other materials• The size of the units were defined so it would equal 1

2. Which is heavier—a pound of steel or a pound of coffee?• Steel is always heavier than coffee• They both weigh a pound • Sometimes freeze-dried coffee is heavier

3. Why is the density of lead the same on the Moon as it is on Earth?• Density relates to the mass, not the weight. • Lead will melt on the Moon• The Moon has less gravity than the Earth

The Web address of this page is www.school-for-champions.com/science/density.htm. Please include it as a

reference in your report, document, or thesis.

Medição de Densidades

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Berthold Industrial Systems

In Line Density Meter LB 379

                       

            

The Compelling Advantages •Non-contacting, continuous measurement - no contact with medium being measured •Minimum radiation exposure (dose rate < 1 µSv/h at 10 cm from surface) •241Am radiation source in ultrasafe capsule with long half-life (433 years) ]•Complete stainless steel construction of measuring section •Simple installation in existing pipelines •High statistical accuracy and long-term stability by the use of a highly sensitive scintillation counter with patented drift compensation •Ideal for food industry applications •Calibration and measurement output directly in measured variables (g/cm3, %, °Bx, °Be, g/l) •Very simple calibration by microprocessor controlled amplifier

The Principle of Measurement Density Measurement is based on the absorption of Gamma radiation as it passes through the process material. Absorption is proportional to changes in material density, and as the measuring path is held constant, this indicates product density.

 Mercury Pycnometer Product Resources       

  Micro Density Meters

Model 102B - Smallest Sample Volume Requirements in the World!The ISSYS Micro Density Meter, Model 102B will accurately measure fluid density or specific gravity over a programmable temperature range of 0ºC to 90ºC. Because microfluidic tubes are used, only 1 microliter of fluid is required to perform the measurement. This ultimately saves system weight. While the competition's temperature controlled density meter weighs up to 28kg (60 lbs), the ISSYS Micro Density Meter weighs only 1 kg (2.2lbs). It's an instrument grade (5-digits of resolution) density meter that can be literally held in your hand. If you have to carry an accurate, temperature controlled density meter anywhere, you'll want to take the Micro Density Meter.

Medição de Densidades

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Laboratório #1Laboratório #1

Método Português-Espanhol

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Cómo medir densidades

Picnômetro

U$ 150.86 

Picnômetro

H2O

mP+MH2O+MC mP+MH2O+MC-ma

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δa = Handbook

Va= VC

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Balança de Mohr-Westphal

U$ >>150.86 

11 22 33 44 55 66 77 88 99 1010

m = 1

m = 10

m = 100

Balança de Mohr-Westphal

I = 1 u.a.

I = 10 u.a.

I = 100 u.a

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Balança de Mohr-Westphal

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Balança de Mohr-Westphal

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Balança de Mohr-Westphal

Balança de Mohr-Westphal

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