摘要:
The precipitated silica has the following physico-chemical parameters: BET surface area (DIN 66131) in m2/g 400-600 DBP index (DIN 53601) in g/100 g 300-360 Compacted density (DIN 53194) in g/l 70-140 Grindometer value (ISO 1524) in &mgr;m 15-50 Size distribution index I
摘要:
The precipitated silica has the following physico-chemical parameters: BET surface area (DIN 66131) in m2/g 400-600 DBP index (DIN 53601) in g/100 g 300-360 Compacted density (DIN 53194) in g/l 70-140 Grindometer value (ISO 1524) in &mgr;m 15-50 Size distribution index I
摘要:
Dispersion containing, in addition to water, 0.5 to 20 wt. % of hydrophobic silica, 0.01 to 10 wt. % of a gelling or viscosity-increasing additive, 0.1 to 1 wt. % of a preservative and 0 to 1 wt. % of a surface-active substance. It is prepared by a procedure in which the individual components are dispersed successively or together into the water and in this procedure the individual components are deaerated before and/or during the addition or the dispersion is deaerated during the individual dispersing steps. The dispersion can be employed as an insecticide.
摘要:
Preparation containing at least one photocatalytically active metal oxide powder with a specific surface area of at least 20 m2/g at least one wetting agent. Use of the preparation for weed control.
摘要:
Dispersion containing, in addition to water, 0.5 to 20 wt. % of hydrophobic silica, 0.01 to 10 wt. % of a gelling or viscosity-increasing additive, 0.1 to 1 wt. % of a preservative and 0 to 1 wt. % of a surface-active substance. It is prepared by a procedure in which the individual components are dispersed successively or together into the water and in this procedure the individual components are deaerated before and/or during the addition or the dispersion is deaerated during the individual dispersing steps. The dispersion can be employed as an insecticide.
摘要:
Dispersion comprising hydrophobic pyrogenically prepared silicon dioxide, alcohol and at least one additive which promotes the dispersion and, as additional component, at least one insecticide and/or acaricide. The dispersion can be canned in spray cans and used as insecticide.
摘要:
Preparation containing at least one UV radiation absorbing metal oxide powder and at least one superspreading agent. Use of the preparation for the reduction of sunburn damage in useful plants.
摘要:
Dispersion containing, in addition to water, 0.5 to 20% by weight of hydrophobic silica, 0.01 to 10% by weight of a gelling additive, or viscosity-increasing additive which, as further components, contains at least one phenol or at least one phenol derivative and/or at least one aldehyde. It is prepared by dispersing the individual components successively or together in water, in which case the individual components are deaerated before and/or during the addition or the dispersion is deaerated during the individual dispersion steps and thereafter the residual air present in the dispersion is removed by application of vacuum. The dispersion can be used as insecticide and for controlling pathogenic agents.