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en:sodium_acetate [2013/06/09 10:09] (current)
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 +======Sodium acetate======
 +The trihydrate sodium salt of acetic acid, which is used as a source of sodium ions in solutions for dialysis and as a systemic and urinary alkalizer, diuretic, and expectorant.
 +
 +{{pubchem>​l_template:​517045|Sodium acetate}}
 +
 +=====Preparation=====
 +
 +**3M NaOAc**
 +  -Solve [[Sodium acetate trihydrate]] 204.1g (1.5 mol) in <​chem>​H2O</​chem>​ approx. 400mL.
 +  -Adjust pH with [[acetic acid]] (pH 5.2)
 +  -Adjust to 500 with <​chem>​H2O</​chem>​.
 +  -Sterilize and store at refreigerator.
 +
 +
 +==== 0.2M NaOAc buffer at various pHs ====
 +
 +^  pH(18℃) ​ ^  0.2M-NaOAc(mL) ​ ^  0.2M AcOH (mL)  ^
 +^  3.7       ​| ​ 10.0  |  90.0  |
 +^  3.8       ​| ​ 12.0  |  88.0  |
 +^  4.0       ​| ​ 18.0  |  82.0  |
 +^  4.2       ​| ​ 26.5  |  73.5  |
 +^  4.4       ​| ​ 37.0  |  63.0  |
 +^  4.6       ​| ​ 49.0  |  51.0  |
 +^  4.8       ​| ​ 59.0  |  41.0  |
 +^  5.0       ​| ​ 70.0  |  30.0  |
 +^  5.2       ​| ​ 79.0  |  21.0  |
 +^  5.4       ​| ​ 86.0  |  14.0  |
 +^  5.6       ​| ​ 91.0  |   ​9.0 ​ |
 +
 +=====Links=====
 +
 +  *[[Acetic acid]]
 +    *[[Sodium acetate trihydrate]]
 +  *[[Ethanol precipitation]]
 +  *[[MeSH>​68019346|MeSH]]
 +
 +
 +{{tag>​salt preparation}}