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Hydrated silicas can form in nature through biotic processes primarily involving benthic microorganism activity in the oceans. However, there are several abiotic processes that form hydrated silicas, such as precipitating out of solution, forming a diagenetic alteration product, or replacing
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In its pure form, as manufactured for toothpaste, it is an odorless, tasteless, white, gelatinous substance, which is chemically inert. One of the primary industrial methods to acquire hydrated silica is through a
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Hydrated silicas exhibit a trend of decreasing bonded water molecules as the crystallinity of the silica molecule increases, with microcrystalline quartz's typically containing the highest water content.
340:, to increase their effectivity. A hydrated silica compound's effectiveness as a flame retardant is dependent upon the presence of chemically bonded transition metals, commonly iron and titanium
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formulations. Hydrated silica is a useful abrasive in toothpastes because it does not chemically interact with other active ingredients, especially
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592:"Improvement of flame retardancy and thermal stability of polypropylene by P-type hydrated silica aluminate containing lanthanum"
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One of the most common ways to detect and identify hydrated silicas in laboratory is through near infrared and thermal infrared
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Hydrated silica compounds, such as hydrated silica aluminate (HSA), can be combined with traditional flame retardants, such as
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34:
Hydrated silica is a primary ingredient in modern toothpastes, serving as a high performance abrasive during cleaning.
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465:"Baking soda as an abrasive in toothpastes: Mechanism of action and safety and effectiveness considerations"
45:, which has a variable amount of water in the formula. When dissolved in water, it is usually known as
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Hydrated silicas can be categorized into three main categories based on differences in crystallinity:
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Zhang, Sheng; Tang, Wufei; Guo, Jia; Jin, Xiaodong; Li, Hongfei; Gu, Xiaoyu; Sun, Jun (2018-08-01).
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https://web.archive.org/web/20071126082443/http://www.tomsofmaine.com/toms/ifs/hydrated_silica.asp
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https://web.archive.org/web/20071126082443/http://www.tomsofmaine.com/toms/ifs/hydrated_silica.asp
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521:"Hydrated silica on Mars: Combined analysis with near-infrared and thermal-infrared spectroscopy"
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84:, originally mined as "tooth powder" is a naturally occurring hydrated silica. As a fine gel
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Smith, Matthew R.; Bandfield, Joshua L.; Cloutis, Edward A.; Rice, Melissa S. (2013-04-01).
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100:. Milled to a slightly larger size, the grains are more aggressive and are used in
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as an abrasive to assist in cleaning. Hydrated silica can be dehydrated to produce
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53:(which has been mined as a gemstone for centuries), and in the cell walls of
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69:. It is also used in various paints and varnishes and in the production of
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642:. Arthur F. Grand, Charles A. Wilkie. New York: Marcel Dekker. 2000.
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439:"Hydrated silica gel for stabilization treatment of beer"
371:"Cleaning Power and Abrasivity of European Toothpastes"
567:"Hydrated Silica - an overview | ScienceDirect Topics"
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Hara, Anderson T.; Turssi, Cecilia P. (2017-11-01).
57:. It is also synthetically manufactured for use in
469:The Journal of the American Dental Association
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117:pre-existing minerals in sedimentary rocks.
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639:Fire retardancy of polymeric materials
608:10.1016/j.polymdegradstab.2018.06.014
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348:Hydrated silica is listed by the US
352:as "Generally Recognized as Safe"
88:, frequently combined with softer
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596:Polymer Degradation and Stability
369:Wiilknitz, P. (November 1997).
1:
545:10.1016/j.icarus.2013.01.024
387:10.1177/08959374970110042701
350:Food and Drug Administration
49:. It is found in nature as
375:Advances in Dental Research
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481:10.1016/j.adaj.2017.09.007
425:"Amethyst Galleries: Opal"
160:Chemical Formula: SiO
141:Microcrystalline quartz
132:Hydrated silicate glass
143:(Highest crystallinity)
670:: CS1 maint: others (
134:(Lowest crystallinity)
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571:www.sciencedirect.com
96:) it helps to remove
65:, which is used as a
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720:Household chemicals
537:2013Icar..223..633S
338:aluminium hydroxide
334:magnesium hydroxide
82:Diatomaceous earth
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90:calcium carbonate
77:Use in toothpaste
27:Chemical compound
16:(Redirected from
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39:Hydrated silica
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696:Chemistry:
602:: 276–284.
714:Categories
576:2023-02-04
356:References
63:silica gel
59:toothpaste
666:cite book
624:139985716
616:0141-3910
553:0019-1035
489:0002-8177
395:0895-9374
67:desiccant
658:43569399
497:29056187
411:72981780
308:O → H
286:O → H
264:O → H
242:O → H
220:O → H
202:O → H
184:O → H
86:abrasive
533:Bibcode
403:9470519
304:+ 1 H
282:+ 4 H
260:+ 2 H
238:+ 3 H
216:+ 1 H
198:+ 2 H
180:+ 1 H
55:diatoms
705:Beer:
699:Opal:
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525:Icarus
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344:Safety
112:Nature
98:plaque
92:(from
620:S2CID
407:S2CID
300:4 SiO
278:3 SiO
256:3 SiO
234:2 SiO
212:2 SiO
194:1 SiO
176:1 SiO
94:chalk
672:link
654:OCLC
644:ISBN
612:ISSN
549:ISSN
493:PMID
485:ISSN
399:PMID
391:ISSN
336:and
138:Opal
71:beer
51:opal
604:doi
600:154
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529:223
477:doi
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383:doi
206:SiO
188:SiO
172:O
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316:O
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294:O
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284:2
280:2
274:8
272:O
270:3
266:4
262:2
258:2
252:7
250:O
248:2
244:6
240:2
236:2
230:5
228:O
226:2
222:2
218:2
214:2
208:4
204:4
200:2
196:2
190:3
186:2
182:2
178:2
170:2
168:H
166:n
162:2
20:)
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