Sodium hydroxide: Difference between revisions

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* Combine 212ubm [[sodium carbonate]] with 56ubm [[calcium oxide]] in water, giving sodium hydroxide and [[calcium carbonate]]
* Combine 212ubm [[sodium carbonate]] with 56ubm [[calcium oxide]] in water, giving sodium hydroxide and [[calcium carbonate]]
*: {{#Chem: Na2CO3 + CaO + H2O → 2 NaOH(aq) + 2 CaCO3(s)}}
*: {{#Chem: Na2CO3 + CaO + H2O → 2 NaOH(aq) + 2 CaCO3(s)}}
* Coombine 168 ubm [[sodium bicarbonate]] with 56ubm [[calcium oxide]], giving water, sodium hydroxide and [[calcium carbonate]]
* Coombine 168 ubm [[sodium bicarbonate]] with 56ubm [[calcium oxide]] in 875ubm water, giving morewater, sodium hydroxide and [[calcium carbonate]]
*: {{#Chem: NaHCO3 + CaO →  NaOH(aq) + 2 CaCO3(s) + H2O}}
*: {{#Chem: NaHCO3 + CaO →  NaOH(aq) + 2 CaCO3(s) + H2O}}
* Combine 212ubm [[sodium carbonate]] with 74ubm [[calcium hydroxide]] in water, giving sodium hydroxide and [[calcium carbonate]]
* Combine 212ubm [[sodium carbonate]] with 74ubm [[calcium hydroxide]] in water, giving sodium hydroxide and [[calcium carbonate]]
*: {{#Chem: Na2CO3 + Ca(OH)2 → 2 NaOH(aq) + 2 CaCO3(s)}}
*: {{#Chem: Na2CO3 + Ca(OH)2 → 2 NaOH(aq) + 2 CaCO3(s)}}
* Combine 168 ubm [[sodium bicarbonate]] with 74ubm [[calcium hydroxide]], giving water, sodium hydroxide and [[calcium carbonate]]
* Combine 168 ubm [[sodium bicarbonate]] with 74ubm [[calcium hydroxide]] in 875ubm water, giving morewater, sodium hydroxide and [[calcium carbonate]]
*: {{#Chem: NaHCO3 + Ca(OH)2 →  NaOH(aq) + 2 CaCO3(s) + H2O}}
*: {{#Chem: NaHCO3 + Ca(OH)2 →  NaOH(aq) + 2 CaCO3(s) + H2O}}



Revision as of 19:23, 20 April 2020

 
Sodium hydroxide
Chemical formula NaOH
OTP appearance white solid 
Molar Mass(g/mol) 39.9971 
Density(g/cc) 2.13 
Melting Point(°C) 318 
Boiling Point(°C) 1388 
Solubility in water(g/L) 1110
NFPA 704
NFPA704.png
0
3
1
ALK

Uses

Primary

  • Industrial chemical
  • Primary component in lye
  • Primary alkali used to produce sodium salts from acids

Natural occurrence

  • Sodium hydroxide does not occur naturally.

Hazards

Sodium hydroxide is extremely caustic, especially when wet. Exposure of wet (slaked) lye to skin or eyes is likely to result in severe chemical burns and/or blindness.

Production

Synthesis

Any combination of calcium (hydr)oxide and sodium (bi)carbonate results in sodium hydroxide:

Purification

Testing

Storage

Disposal

See Also

References