Magnesium trisilicate

Magnesium trisilicate
Preferred IUPAC name Dimagnesium dioxido-bis[(oxido-oxosilyl)oxy]silane
Identifiers
CAS number	14987-04-3 Y
PubChem	5311266
ChemSpider	4470779 Y
ChEMBL	CHEMBL1200428
Jmol-3D images	Image 1 Image 2
SMILES [O-][Si](=O)O[Si]([O-])([O-])O[Si](=O)[O-].[Mg+2].[Mg+2] [Mg++].[Mg++].[O-][Si](=O)O[Si]([O-])([O-])O[Si]([O-])=O
InChI InChI=1S/2Mg.O8Si3/c;;1-9(2)7-11(5,6)8-10(3)4/q2*+2;-4 Key: GXGAKHNRMVGRPK-UHFFFAOYSA-N
Properties
Molecular formula	Mg2O8Si3
Molar mass	260.86 g mol−1
Exact mass	259.860180371 g mol-1
Appearance	White crystals
Odor	Odourless
Hazards
R-phrases	R36, R37, R38
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Magnesium trisilicate is an inorganic compound that is used as a food additive. The additive is often employed by fast food chains to absorb fatty acids and remove impurities that form in edible oils during the frying process.

Health effects

On March 12, 2007, Chinese health authorities seized and halted the use of magnesium trisilicate at Shaanxi Province KFC franchises, suspecting it to be a possible carcinogen.^[1] As a response, China's Ministry of Health conducted tests at six outlets of KFC ^[2]. The results showed chemicals in the cooking process at KFC restaurants in the country were not harmful.^[3] The Ministry of Health said tests showed that using the product to filter cooking oil had no apparent impact on health. Food scares regularly sweep the Chinese media.^[4]

Magnesium trisilicate can be used as an antacid in the treatment of peptic ulcers. It increases the pH of gastric juice via a neutralisation reaction. It also precipitates colloidal silica, which can coat gastrointestinal mucosa conferring further protection.^{[citation needed]}

It can also be used in oral pharmaceutical formulations and food products as a glidant. It is also used therapeutically as an antacid, and also for the treatment of ciprofloxacin overdose or toxicity.^{[citation needed]}

References

1. ^ "Suspect additive found in KFC". Xinhua News Agency. March 12, 2007. http://news.xinhuanet.com/english/2007-03/12/content_5832793.htm. 
2. ^ "Chinese Health Ministry Okays KFC". Medindia. March 14, 2007. http://www.medindia.net/news/view_news_main.asp?x=19127. 
3. ^ "China officials clear KFC". QSRweb. March 14, 2007. http://www.qsrweb.com/article/106203/China-officials-clear-KFC. 
4. ^ "China officials clear KFC after food scare". Reuters. March 13, 2007. http://www.reuters.com/article/2007/03/13/china-food-kfc-idUSPEK5951020070313.