Amorphous sodium silicate powder
AssigneeTokuyama Corporation
InventorsYoshiki Fukuyama, Genji Taga
Life of this patent
Estimating the term…
Abstract
Amorphous sodium silicate powder exhibiting excellent water softening power and suitable as a detergent builder is provided. This amorphous sodium silicate powder is characterized in that when the molar ratio of SiO.sub.2 /Na.sub.2 O is expressed by n and the specific surface area thereof is expressed by S(m.sup.2 /g), the following expressions: 1.20.ltoreq.n.ltoreq.1.60 0.10.ltoreq.S.ltoreq.0.90 and 0.008.times.n.sup.8.6 .ltoreq.S.ltoreq.0.063.times.n.sup.8.1 are satisfied.
Claims10
Amorphous sodium silicate powder wherein, when the molar ratio of SiO.sub.2 /Na.sub.2 O is expressed by n and the specific surface area thereof is expressed by S(m.sup.2 /g), the following expressions:
- 1.20.ltoreq.n.ltoreq.1.60
- 0.10.ltoreq.S.ltoreq.0.90
- and
- 0.008.times.n.sup.8.6 .ltoreq.S.ltoreq.0.063.times.n.sup.8.1
- are satisfied.
Dependencies are inferred from the claim text.