Significance of Hausner's ratio
Hausner's ratio is a significant measure that assesses the flowability of powder formulations, calculated as the ratio of tapped density to bulk density. This dimensionless value provides insights into the flow characteristics and compactibility of powders, with lower ratios indicating better flow properties. It is crucial in various applications, particularly in pharmaceutical formulations, where understanding powder flow behavior supports effective processing and formulation design. Therefore, Hausner's ratio serves as an essential tool in evaluating powder characteristics.
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The concept of Hausner's ratio in scientific sources
Hausner's ratio is a key measure of powder flowability, determined by the ratio of tapped density to bulk density. It indicates how well the powder, including Grevillea robusta gum, will perform during processing.
From: World Journal of Pharmaceutical Research
(1) A ratio used to assess the flowability of granular substances, calculated from the tapped and bulk densities.[1] (2) A measure of the flowability of powder determined by comparing tapped density and bulk density.[2] (3) Hausner's ratio is calculated using the ratio of tapped density to bulk density, providing insights into a powder's flow properties.[3] (4) A ratio comparing the tapped density to bulk density, indicative of flowability of microparticles.[4] (5) A measure of the flow properties of powders derived from the ratio of tapped density to bulk density.[5]
From: AYU (Journal of Research in Ayurveda)
(1) A measure of the flowability of powder formulations, indicating if the powder will behave properly during processing.[6]
From: Ayushdhara journal
(1) An index used to measure the flowability of a powder, calculated from the bulk density and tapped density.[7]