Wacker HDK® N20 Pharma Silica

Login to see your most recently viewed materials here. Or if you don't have an account with us yet, then click here to register.

Wacker HDK® N20 Pharma 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® N20 PHARMA shows identical application properties to HDK® N20. Additional product specifications, defined in pharmacopoeias USP/NF, and EP are measured. (produced according to ISO 9001, ISO 14001) Information provided by Wacker Chemie AG.
Vendors:	No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
Printer friendly version Download as PDF Download to Excel (requires Excel and Windows) Export data to your CAD/FEA program Add to Folder:

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	175 - 225 m²/g	175 - 225 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

Optical Properties	Metric	English	Comments
Refractive Index	1.46	1.46

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	<25 ppm		Heavy metal
	<250 ppm		Chloride (Cl)
	<3 ppm		Arsenic
	99-100.5%		Silicone dioxide
Sieve residue	<0.03%		acc to Mocker >40 µm, DIN EN ISO 787-18

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

Users viewing this material also viewed the following:
Wacker HDK® T40 Nutrition Silica
Silicon, Si

PWACK9348 / 204877

	Advertise with MatWeb!
	Data sheets for over 180,000 metals, plastics, ceramics, and composites.
	HOME • SEARCH • TOOLS • SUPPLIERS • FOLDERS • ABOUT US • FAQ • LOG IN

System Message