Wacker HDK® T40 Nutrition Silica

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Wacker HDK® T40 Nutrition Silica
Categories:	Ceramic; Oxide; Silicon Oxide; Other Engineering Material; Additive/Filler for Polymer
Material Notes:	Synthetic, hydrophilic amorphous silica, produced via flame hydrolysis. Special features: White colloidal powder of high purity. Application: HDK® T40NUTRITION shows the same product characteristics like HDK® N20, but in addition to the specified parameters of HDK® N20, the specification relevant for uses as Food and Feed Additive under E 551 according to Regulation (EU) 231/2012 are met. (Production according to ISO 9001, ISO 14001 and HACCP) Information provided by Wacker Chemie AG.
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Physical Properties	Metric	English	Comments

Bulk Density	0.0400 g/cc	0.00145 lb/in³	tamped; DIN EN ISO 787-11
Density	2.20 g/cc	0.0795 lb/in³	DIN 51757
pH	3.8 - 4.3	3.8 - 4.3	4% dispersion; DIN EN ISO 787-9
Specific Surface Area	360 - 440 m²/g	360 - 440 m²/g	Hydrophobic Silica
Evaporation Loss	<= 1.5 % @Temperature 105 °C, Time 7200 sec	<= 1.5 % @Temperature 221 °F, Time 2.00 hour	DIN EN ISO 787-2

Component Elements Properties	Metric	English	Comments
SiO2	>= 99.8 %	>= 99.8 %	based on the substance heated at 1000°C for 2 h; DIN EN ISO 3262-19

Descriptive Properties
Content	<1 ppm		Mercury
	<250 ppm		Chloride (Cl)
	<3 ppm		Arsenic
	<5 ppm		Lead
	99-100.5%		Silicone dioxide
Sieve residue	<0.03%		acc to Mocker >40 µm, DIN EN ISO 787-18

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PWACK9356 / 204885

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