Talk:Sodium silicate

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=======Chembox===========

Can the melting point be higher than the boiling point? -I'm suspecting the author has written the melting point as boiling point and vise versa. Therefore I'm going to do an experiment in a couple of days to see if it melts at 102^oC -Got a hold of silica gel, it did not melt at over 102^oC

Sodium Metasilicate is not the same!

Sodium Metasilicate redirects to this page, but has very different properties. It requires its own page. For a brief comparison see http://www.finishing.com/155/96.shtml. Can someone get that page started please? The text of this page should also be changed to reflect that these are not the same. On a (closely) related note, the silicic acid entry needs improvement, stats, pics, etc.

—The preceding unsigned comment was added by 217.80.77.131 (talk) 17:46, 9 February 2007 (UTC).[reply]

Is silica gel pure silica? --207.81.94.148 03:08, 31 October 2007 (UTC)[reply]

Vandalism ?

Is the following sentence nonsense or am I missing something? Rsduhamel 08:31, 19 Dec 2004 (UTC)

Sodium silicate commands a 50 to 100 percent price premium over sodium hydroxide, and processors need the equivalent to 0.5 to 1 percent of it to the volume of crude oil as a neutralizing agent, depending on the acidity of the vegetable oil.

Found the original source of the sentence and fixed the article Rsduhamel 19:16, 19 Dec 2004 (UTC)

==Update==--PaladinZ06 22:05, 24 March 2006 (UTC) I've added some information, and changed the content of the timber treatment section. The use of sodium silicate as a wood preservative may not be common, but it was hardly dreamed up in 2005. I am in the process of using an old method at home that uses sodium silicate solution as a wood sealer/fireproofing which is then sprayed with a boric acid solution which keeps the bugs at bay and forces the sodium silicate to gel.[reply]

There are several common trade products available containing primarily sodium silicate for treating concrete and other masonry products.

I apologize for any errors I've introduced. I am a total newcomer to this. --PaladinZ06 22:05, 24 March 2006 (UTC)[reply]

Dishwashing Detergent

I've noticed that my dishwasher detergent containts sodium silicate. This should probably be worked into the article.

MSTCrow 12:18, 24 May 2006 (UTC)[reply]

Sodium metasilicate is also used as a replacement for trisodium phosphate in painting preparation/degreasing. It works well in dishwashing except for the attack of glass. Softer, soda-lime glass is attacked via common ion solution effect, leaving the glass cloudy. As such, automatic dishwashing detergents containing appreciable amounts of sodium metasilicate should only be used for non-glass items like metal and plastics. Glazed stoneware is also susceptible to attack.

Silica Xerogel

According to the Nasa Space Sciences Questions and Answers FAQ (http://science.nasa.gov/faq/#anchor136932), sodium silicate gel, when air dried, forms silica xerogel, which is a similar to aerogel. Perhaps this wiki should be updated in regard to this?

Antifreeze (Bad!)

A friend of mine tried to use sodium silicate as an antifreeze in his car (prehaps misunderstanding its use as a cheap stop-leak compound). The stuff solidified while in his radiatior, requiring a complete cooling system replacement. Got2code 19:05, 14 June 2007 (UTC)[reply]

The structure picture is incorrect and misleading

Na₂SiO₃ does not contain discrete SiO₃^2- ions- with VERY rare exceptions silicates contain 4 coordinate Si and in the case of Na₂SiO₃ this contains one of the simpler polymeric chain anions. I have tried to remove the picture - with no success- beats me!. I have added words that explain the structure but the picture needs replacing.--Axiosaurus (talk) 18:16, 2 November 2008 (UTC)[reply]

Someone want to add the fact that it is being used under the CARS act to distroy the engines of the "clunkers" —Preceding unsigned comment added by 216.161.117.130 (talk) 22:40, 24 July 2009 (UTC)[reply]

Disodium oxosilanebis(olate) = inappropriate SystematicName

Problem with some content of the chembox:

| SystematicName = Disodium oxosilanebis(olate)

In organic chemistry, the suffix "olate" commonly refers to an alcoholate, not to the conjugated base of an inorganic acid. Disodium oxosilanebis(olate) is very misleading for the reader. The conjugated base of the metasilicic acid has to follow the same rules as for these of other inorganic acids whose base is also an oxyanion: e.g.

sulfuric acid: sulfate and not sulfonate;
phosphoric acid: phosphate and not phosphonate.

All the rules of organic chemistry nomenclature are not directly transposable to inorganic compounds. The analogy with the carbon atom has its limits, even for silicon a close cousin of carbon. Shinkolobwe (talk) 14:45, 28 December 2010 (UTC)[reply]