Timeline for Discerning Sodium bicarbonate
Current License: CC BY-SA 3.0
9 events
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| Jan 27, 2016 at 13:13 | history | tweeted | twitter.com/StackChemistry/status/692334728255553536 | ||
| Oct 31, 2015 at 6:37 | comment | added | MaxW | No. Without having some real idea of what impurity your looking for, or some idea of how much on an impurity is tolerable you can't make any judgement. For instance radioactive polonium would poison you at trace levels but it would be readily detected by a Geiger counter. As another example a mixture of $\ce{NaOH}$ and $\ce{NaCO3}$ would give a yellow flame test and a ppt much like pure $\ce{NaCO3}$. So never ever eat something unless you KNOW it is "food grade." | |
| S Oct 22, 2015 at 21:51 | history | suggested | Mithoron |
retagged q.
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| Oct 22, 2015 at 21:36 | review | Suggested edits | |||
| S Oct 22, 2015 at 21:51 | |||||
| Oct 22, 2015 at 18:18 | comment | added | Sutekh | Didn't bought the box in the first place , bought it in bulk as 500gr for like 30cents, that why there is no label to make it certain. However disregarding this , even on those small packages of 20gr there is no label such as NaHCO3 only E500. | |
| Oct 22, 2015 at 18:06 | answer | added | ParaH2 | timeline score: 1 | |
| Oct 22, 2015 at 18:04 | comment | added | iad22agp | Simple tests--for example, dissolving some of the material in water and looking for undissolved matter--can only tell you so much about its purity. If it is food grade and in its original brand package, it is probably OK to use, but if you really need to be sure, you are better off buying a new box. If you purchase analytical or reagent grade material, it comes with a certificate of analysis listing levels of impurities--still pretty cheap relative to having it analyzed. | |
| Oct 22, 2015 at 17:35 | review | First posts | |||
| Oct 22, 2015 at 19:21 | |||||
| Oct 22, 2015 at 17:26 | history | asked | Sutekh | CC BY-SA 3.0 |