The product FlowLac® is produced by spray-drying a suspension of fine milled alpha-lactose monohydrate crystals in a solution of lactose. When lactose in solution is spray-dried, a rapid removal of water is taking place, whereby amorphous, non-crystalline lactose is formed in addition to crystalline lactose. Based on the amorphous content, kept on a stable level, non-varying better tabletting properties can be reached.
Due to the spray-drying process, FlowLac® has a spherical agglomerate shape, consisting of small alpha-lactose monohydrate crystals bound by amorphous lactose.
FlowLac® 100 is the standard grade for spray-dried lactose, which provides an excellent flowability and an extraordinary compactability compared to all other lactose grades.
Shelf life / Retest - Standard Packaging
18 months - 25 kg Paper bag with PE-EVOH-PE Inliner
24 months - 25 kg Carton box with aluminium inliner
Particle size distribution
[Air jet sieve]
- <32 µm: NMT 10%
- <100 µm: 20-45%
- <200 µm: NLT 80%
- Bulk Density [g/l]: 590
- Tapped Density [g/l] : 710
- Hausner factor: 1.2
- Carrs index: 16.9 %
- Superior flowability
- Excellent compactability
- Low hygroscopicity and high stability
- Fast disintegration times
Areas of Application
- Low to medium dose DC formulations
- Formulations with poorly flowing API´s
- Capsule and sachet filling