Changes

Melting point: 318 [[Celsius|C]]<br>

Melting point: 318 [[Celsius|C]]<br>

Boiling point: 1390 C<br>

Boiling point: 1390 C<br>

Vapour pressure: 1 mm Hg at 739 C<br>

Vapour pressure: 1&nbsp;mm Hg at 739 C<br>

Specific gravity: 2.12<br>

Specific gravity: 2.12<br>

Water solubility: High (Note: dissolution in water is highly [[exothermic]], gives off a great deal of heat)<br>

Water solubility: High (Note: dissolution in water is highly [[exothermic]], gives off a great deal of heat)<br>

Very corrosive. Causes severe burns. May cause serious permanent eye damage. Very harmful by ingestion. Harmful by skin contact or by inhalation of dust.<br>

Very corrosive. Causes severe burns. May cause serious permanent eye damage. Very harmful by ingestion. Harmful by skin contact or by inhalation of dust.<br>

'''Toxicity data'''<br>

'''Toxicity data'''<br>

LD50 40 mg/kg; (which is the lethal dose for 50% of the test subjects.)<ref>http://ptcl.chem.ox.ac.uk/MSDS/SO/sodium_hydroxide.html</ref>

LD50 40&nbsp;mg/kg; (which is the lethal dose for 50% of the test subjects.)<ref>http://ptcl.chem.ox.ac.uk/MSDS/SO/sodium_hydroxide.html</ref>

===References===

===References===

<references/>

<references/>

[[Category:Chemical Compounds]]

[[Category:Chemical Compounds]]