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Sodium Acetate - Revision history
2026-10-18T02:37:56Z
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https://eln.excellgen.com/index.php?title=Sodium_Acetate&diff=20344&oldid=prev
Paul.xu at 22:19, 26 November 2019
2019-11-26T22:19:22Z
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== SODIUM ACETATE; PH 3.6–5.6, PKA = 4.76 ==<br />
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| height="17" align="LEFT" colspan="3" rowspan="1" | Mix 0.1N acetic acid and 0.1M sodium acetate (Pearse, 1980).<br />
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| height="17" align="LEFT" | acetic acid<br />
| align="LEFT" | sodium acetate<br />
| align="LEFT" | pH<br />
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| height="17" align="LEFT" | 185<br />
| align="LEFT" | 15<br />
| align="RIGHT" | 3.6<br />
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| height="17" align="LEFT" | 176<br />
| align="LEFT" | 24<br />
| align="RIGHT" | 3.8<br />
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| height="17" align="LEFT" | 164<br />
| align="LEFT" | 36<br />
| align="RIGHT" | 4<br />
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| height="17" align="LEFT" | 147<br />
| align="LEFT" | 53<br />
| align="RIGHT" | 4.2<br />
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| height="17" align="LEFT" | 126<br />
| align="LEFT" | 74<br />
| align="RIGHT" | 4.4<br />
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| height="17" align="LEFT" | 102<br />
| align="LEFT" | 98<br />
| align="RIGHT" | 4.6<br />
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| height="17" align="LEFT" | 80<br />
| align="LEFT" | 120<br />
| align="RIGHT" | 4.8<br />
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| height="17" align="LEFT" | '''59'''<br />
| align="LEFT" | '''141'''<br />
| align="RIGHT" | '''5'''<br />
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| height="17" align="LEFT" | 42<br />
| align="LEFT" | 158<br />
| align="RIGHT" | 5.2<br />
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| height="17" align="LEFT" | 29<br />
| align="LEFT" | 171<br />
| align="RIGHT" | 5.4<br />
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| align="LEFT" | 181<br />
| align="RIGHT" | 5.6<br />
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0.1 M NaOAc: 8.2 g/L, water to 1 L<br />
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0.1 N HOAC:&nbsp; 5.8 ml/L, water to 1 L, 0.58 ml/100 ml, 58 ul/10 ml, 116 ul/20 ml<br />
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2 g of NaOAc + 116 ul HOAC---> 1L, will be pH ~5.5, 20 mM<br />
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Mix 295 ml of 0.1 N HOAc and 705 ml of 0.1M NaOAC--> pH5.0<br />
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== '''Sodium Acetate – Acetic Acid Buffer Solutions, pH 3.7–5.6'''1 ==<br />
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<br/>Sodium acetate trihydrate, CH 3COONa • 3H 2O, M. wt. 136.09;<br/>0.2M-solution contains 27.22 g/l.<br/>x ml 0.2M-NaOAc and y ml 0.2M-HOAc mixed.<br />
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{| width="345" cellspacing="1" cellpadding="2" border="1"<br />
|-<br />
| width="50" | '''pH, 18 °C'''<br />
| width="135" | '''x ml 0.2M-NaOAc'''<br />
| width="160" | '''y ml 0.2M-HOAc'''<br />
|-<br />
| 3.7<br />
| 10.0<br />
| 90.0<br />
|-<br />
| 3.8<br />
| 12.0<br />
| 88.0<br />
|-<br />
| 4.0<br />
| 18.0<br />
| 82.0<br />
|-<br />
| 4.2<br />
| 26.5<br />
| 73.5<br />
|-<br />
| 4.4<br />
| 37.0<br />
| 63.0<br />
|-<br />
| 4.6<br />
| 49.0<br />
| 51.0<br />
|-<br />
| 4.8<br />
| 59.0<br />
| 41.0<br />
|-<br />
| 5.0<br />
| 70.0<br />
| 30.0<br />
|-<br />
| 5.2<br />
| 79.0<br />
| 21.0<br />
|-<br />
| 5.4<br />
| 86.0<br />
| 14.0<br />
|-<br />
| 5.6<br />
| 91.0<br />
| 9.0<br />
|}<br />
[[Category:Buffer Recipe]]</div>
Paul.xu