172:(SCF) together with that of silica and the other metal alkali silicates. The SCF noted that “the available data, including a number of short-term studies in two species, appear to substantiate the biological inertness of those compounds”. The SCF established a group
223:
Krysztafkiewics, A., Lipska, L.K., Ciesielczyk, F., and
Jesionowski, T. Amorphous magnesium silicate – synthesis, physicochemical properties and surface morphology. Advanced Powder Technol, 15, 549, 2004.
273:
Food and
Agricultural Organization of the United Nations/World Health Organization Joint Expert Committee on Food Additives, 61st Session, published in NFP 52, Add 11, 2003.
161:
compounds from used frying oils. Various national and international regulations allow use of this material as an anti-caking agent in a wide variety of powdered foods.
153:(or X=2.5 in the general formula). The most common use for Food Grade synthetic magnesium silicate is as an active filter aid for adsorption of color, free
214:
Ralph K. Iler, The
Chemistry of Silica: Solubility, Polymerization, Colloid, and Surface Properties, and Biochemistry, John Wiley and Sons (1979)
232:
Ciesielczyk, F., Krysztafkiewics, A., Jesionowski, T. Physicochemical studies on precipitated magnesium silicates. J Mater Sci. 42, 3831, 2007.
168:, it is safe to ingest synthetic magnesium silicate. In 1990, the safety of synthetic magnesium silicate was reviewed by the
293:
Michael D. Erickson (Editor), Deep Frying: Chemistry, Nutrition, and
Practical Applications, 2ND Edition, AOCS Press (2007)
169:
117:
The very large active surface makes synthetic magnesium silicate useful for a wide variety of applications: purifying
314:
305:
Codex
Alimentarius General Standard for Food Additives, Codex Alimentarius, Volume 1, General Requirements, 1991
173:
149:, JECFA, and other monographs for Food Grade synthetic magnesium silicate specify a mole ratio of 2MgO:5SiO
23:
244:
Condensed
Chemical Dictionary, Eleventh Edition, Van Nostrand and Reinhold Co. Inc., New York, NY (1987)
146:
43:
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31:
101:. Synthetic magnesium silicates are insoluble in water or alcohol. The particles are usually
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129:, dry cleaning, sugar, resins, odors); filler (rubber, ceramics, paper, glass, refractories);
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46:, the addition of the correcting substances, and the way in which they are precipitated.
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42:. The composition of the precipitate depends on the ratio of the components in the
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Food
Chemicals Codex, Seventh Edition, United Book Press Inc., Baltimore, MD (2010)
154:
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176:(ADI) not specified for silicon dioxide and the alkali metal silicates.
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European Union
Commission Directive 2008/84/EC of 27 August 2008
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22:
are white, odorless, finely divided powders formed by the
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can range from less than 100 m/g to several hundred m/g.
30:(water glass) and a water-soluble magnesium salt such as
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315:21 CFR 182.2437, U.S. Code of Federal Regulations
57:, where X denotes the average mole ratio of SiO
65:and the formula is sometimes written MgO:XSiO
8:
194:, a natural silicon-based filter material
81:Unlike natural magnesium silicates like
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283:ACE Filters International; Miracle FP
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210:
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7:
97:, synthetic magnesium silicates are
137:; catalyst carrier; filter medium.
73:O to show the water of hydration.
14:
53:is typically written as MgO:XSiO
188:, a natural magnesium silicate
1:
125:, animal and vegetable oils,
20:Synthetic magnesium silicates
170:Scientific Committee on Food
367:
61:to MgO. The product is
174:Acceptable Daily Intake
254:U.S. Silica, FLORISIL®
24:precipitation reaction
147:Food Chemicals Codex
192:Diatomaceous earth
32:magnesium chloride
131:anti-caking agent
51:molecular formula
40:magnesium sulfate
36:magnesium nitrate
26:of water-soluble
16:Chemical compound
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107:BET surface area
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164:When used as a
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44:reaction medium
28:sodium silicate
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127:chromatography
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166:food additive
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113:Applications
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155:fatty acids
95:crystalline
199:References
157:and other
105:, and the
93:which are
87:forsterite
77:Properties
145:The U.S.
119:adsorbent
99:amorphous
345:Category
180:See also
135:catalyst
133:(salt);
63:hydrated
351:Silicon
141:In food
123:polyols
91:olivine
103:porous
89:, and
159:polar
186:Talc
83:talc
49:The
38:or
347::
298:^
237:^
207:^
85:,
69:•H
34:,
151:2
121:(
71:2
67:2
59:2
55:2
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