DuraLac® H
DuraLac® H is produced by roller-drying a lactose solution at high temperature to form anhydrous beta-lactose and alpha-lactose crystals at levels approximating 70-80% and 20-30%, respectively. During beta-lactose crystallization, no water is incorporated in the crystal lattice resulting in lactose´s anhydrous form.
Subsequent to roller-drying, anhydrous lactose is milled and sieved to the desired particle size distribution, optimizing powder flow and compactability. DuraLac® H deforms by brittle fracture during compaction, it is well-suited for directly compressed and dry granulated formulations (roller compaction, slugging).
Shelf life / Retest:
36 months
Standard Packaging:
25 kg - Carton box with aluminium laminated inliner
Particle size distribution
[Air jet sieve]
- <45 µm: NMT 20%
- <150 µm: 40-65%
- <250 µm: NLT 80%
Typical Values
- Bulk Density [g/l]: 670
- Tapped Density [g/l] : 880
- Hausner factor: 1.31
- Carrs index: 23.86 %
Benefits
- Excellent compactability
- Good flowability
- Relatively low hygroscopicity
- High storage stability
- Suitable for formulations requiring low water content
Areas of Application
- Low dose DC formulations
- Capsule filling
- Dry granulation (Roller compaction, slugging)
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