Water of Hydration; the Removal of Water from a Barium Chloride Hydrate

Experiment:

Water of Hydration; The Removal of Water from a Barium Chloride Hydrate

Started: September 8, 2010

Unknown: N/A

Purpose of Experiment: The purpose of this experiment is to take barium chloride hydrate and extract the water from it. The supplies needed are a Bunsen burner, a crucible, and an apparatus for holding the crucible for heating. The crucible will first be heated to ensure it does not contain any previous traces of water. Then it will be weighed and recorded. After the barium chloride hydrate has been heated the crucible will be weighed again to determine if the water has been extracted. This is procedure is very important. Being able to separate water from substances is a major part of society. The most common way that this is done is for drinking water through water purification.

Reference to Source of Procedure:

1) Barnett Water of Hydration; The Removal of Water from a Barium Chloride Hydrate pg 1-4, 2010

Balanced Equation for Reaction: BaCl2•2H2O==> BaCl2+2H2O

Complete Reaction Mechanism: N/A

Side Reactions: N/A

Table of Quantities:

Name Atomic/Molecular Structure/Formula Atomic Mass (au) Melting Point (°C) Boiling Point Solubility Density

g/cm3

Water H20 18.015au 0°C 100°C N/A 1

Barium Chloride Dihydrate BaCl2.2H2O 244.28au 962°C 1560°C Yes N/A

Barium Chloride Anhydrous BaCl2 208.28au 963°C 1560°C 31g/100g water N/A

Reference for information of substances:

www.hazard.com/msds/index.php

*Safety measures for substances:

Water- Do not place by electric devices. Very good conductor of electricity. Risk of electric shock.

Barium Chloride Dihydrate- Do not swallow. Compound is very dangerous and poisonous. Do not allow it to touch skin. May cause irritation. Can cause difficulty breathing and difficulty with sight.

Barium Chloride Anhydrous- Do not inhale, can cause irritation of the throat. Do not swallow compound is poisonous. Do not allow contact with skin. Do not allow contact with the eyes. Can cause severe irritation to spot of contact.

Procedure: For (BaCl2•nH2O) Observations

1) Obtain one crucible and record the initial mass.

2) Set up apparatus;