High-structure precipitated silicas

Details High-structure precipitated silicas High-structure precipitated silicas

2007-04-17

2007-04-17

Johnson, Edward M. (Department: 1754)

Chemistry of inorganic compounds

Silicon or compound thereof

Oxygen containing

C423S339000

Reexamination Certificate

active

09991640

ABSTRACT:
A precipitated silica having the following physico-chemical characteristics:pH (5% in water) (ISO 787-9)3–8BET surface area (DIN 66131)(m2/g)400–600DBP absorption value (DIN 53601,(g/100 g)380–420in relation to dried substance)Tapped density (ISO 787-11)(g/l)100–200ALPINE sieve residue > 63μ (ISO 8130-1)(%)0.1–40.

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