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This reference is not valid anymore (or at least the link is not active): "Sodium Bicarbonate". American Cancer Society. 28 November 2008. Retrieved 7 September 2013. — Preceding unsigned comment added by 188.81.65.168 (talk) 04:20, 24 June 2015 (UTC)[reply]

Biological Sources

The pancreas is one of the major glands of the body and has two functions: releasing digestive enzymes into the gut and releasing hormones into the blood.

Pancreatic juice also contains sodium bicarbonate, which neutralises the acidic chyme arriving in the duodenum, and provides an alkaline environment for optimum functioning of pancreatic and intestinal enzymes. These enzymes include proteases (for continued protein digestion), amylase (for carbohydrate digestion), and lipase (for fat digestion). ^[1] ~~ Alan Gates ~~

References

^ http://www.pedigree.com/All-Things-Dog/Article-Library/How-Dogs-Digest-Food.aspx

Chemical Database Fix

I fixed the Hazardous Chemical Database link at the bottom of the properties page. - Xaro

Boiling point?

According to Google the boiling point is 851°C but it doesn't really list a source.

Production figure

In the Production section, the quoted figure for the amount of NaHCO3 produced per year is a mere 100,000 tonnes per year. The reference is a physical book, which I do not want to go out and find to see if this is even quoted accurately. However, it seems to me that this 100 kt/a figure is extremely low compared to the worldwide uses of the chemical. Just consider the amount of NaHCO3 used in sodablasting and ask yourself, "Really? 100 thousand tonnes per year? Pah!"

Additionally, after browsing the CEFIC report referenced in the Solvay process article, there is a reported 2.4 'million' tonnes per year capacity for refined sodium bicarbonate. While "capacity" is not the same as actual "production", I have a hard time believing that there there is 2.4 million tonnes/year production capacity, with only 0.1 million tonnes/year actually being produced. Due to these combined issues, I have added a "dubious" template to the 100 kt/a production figure. Could someone please verify the actual annual production of NaHCO3? BirdValiant (talk) 22:37, 21 November 2020 (UTC)[reply]

Thanks for checking. I consulted Ullmann's Encyclopedia of Industrial Chemistry, one of the bibles for such info. The article "Sodium carbonates" is mostly about sodium carbonate, 32,000,000~~,000~~ tons of which were produced in 1990. Big time uses in glass, mining, etc. The same article is almost dismissive abuot sodium bicarbonate. It does not give production data but describes these uses, which seem small-time: "baking powder, as a medicament for neutralizing stomach acid, as a component of effervescent powders, in animal feed, and as a dry-powder fire extinguisher." So maybe the numbers in the current article are reasonable. --Smokefoot (talk) 01:22, 22 November 2020 (UTC)[reply]

@Smokefoot: Compared to 32 Gt/a, 0.0024 Gt/a (2.4 Mt/a) would be already small-time. On the other hand, 0.0001 Gt/a (100 kt/a) is another order of magnitude smaller.

I have found a page on commodity data circa 2004 here which gives a capacity of NaHCO3 production just in the United States of 860,000 tons/year (US short tons) and operating at 75% capacity, giving 585 kilotonnes per year production in the US alone. This already dwarfs the quoted 100 kt/a for the whole globe. BirdValiant (talk) 01:41, 22 November 2020 (UTC)[reply]

Also, I believe that you're off by 3 orders of magnitude when it comes to sodium carbonate production. The sources I'm seeing are on the order of 50 Mt/a, not gigatonnes. [1] [2] BirdValiant (talk) 02:25, 22 November 2020 (UTC)[reply]

Yep, 32M tons for Na2CO3.--Smokefoot (talk) 13:58, 22 November 2020 (UTC)[reply]

Alkalinity/pH increase

Sodium bicarbonate is an acid and when added to any solution it will reduce the pH (unless the pH is already low). It cannot be used to make a solution alkaline (pH >7). chami 16:51, 24 January 2021 (UTC)

[1] ttp://www.pedigree.com/All-Things-Dog/Article-Library/How-Dogs-Digest-Food.aspx

[1]

@@ Line 43: / Line 43: @@
 :: Also, I believe that you're off by 3 orders of magnitude when it comes to sodium carbonate production. The sources I'm seeing are on the order of 50 Mt/a, not gigatonnes. [https://www.statista.com/statistics/1013480/sodium-carbonate-production-worldwide-by-type/] [https://www.essentialchemicalindustry.org/chemicals/sodium-carbonate.html] [[User:BirdValiant|BirdValiant]] ([[User talk:BirdValiant|talk]]) 02:25, 22 November 2020 (UTC)
 :::Yep, 32M tons for Na2CO3.--[[User:Smokefoot|Smokefoot]] ([[User talk:Smokefoot|talk]]) 13:58, 22 November 2020 (UTC)
+== Alkalinity/pH increase ==
+Sodium bicarbonate is an acid and when added to any solution it will reduce the pH (unless the pH is already low). It cannot be used to make a solution alkaline (pH >7). chami 16:51, 24 January 2021 (UTC)