[Wiki432]

See valge pulber on 97% ulatuses tavaline söögisooda. Kui kahjulik see on, seda ma ei tea.

Kust sellised andmed pärinevad?
Googelda pulberkustuti material safety data sheet (MSDS) ning soodat seal koostises küll ei ole.

Viide1, konspekti lehekülg 38: https://www.rescue.ee/files/2019-03/tule...32f95ef11e

Viide 2. Lõik wikipedia lehelt:

• Sodium bicarbonate, [i]regular[/i] or [i]ordinary[/i] used on class B and C fires, was the first of the dry chemical agents developed. In the heat of a fire, it releases a cloud of carbon dioxide that smothers the fire. That is, the gas drives oxygen away from the fire, thus stopping the chemical reaction. This agent is not generally effective on class A fires because the agent is expended and the cloud of gas dissipates quickly, and if the fuel is still sufficiently hot, the fire starts up again. While liquid and gas fires do not usually store much heat in their fuel source, solid fires do. Sodium bicarbonate was very common in commercial kitchens before the advent of wet chemical agents, but now is falling out of favor as it is much less effective than wet chemical agents for class K fires, less effective than Purple-K for class B fires, and is ineffective on class A fires. White or blue in color.
  

Viide 3: https://home.howstuffworks.com