master.on
New Member
Once a lab rarity, molecular sieves became pretty cheap and widely available in Amazon/Ebay
Molecular sieve - Wikipedia
and so easy to use:
heat in oven/microwave oven to expel air
allow to cool off
pour in oil bottle
close bottle cap
allow to dry for 24+ hours
remove sieves from oil with a simple mesh, and it's ready to use.
Either 3A or 4A sieves will work
but maybe 4A are preferable because of FDA approval
Molecular sieve - Wikipedia
Molecular sieves drying is a pharma approved process for injectables (before sterile filtration)
Patent US20170143744 - Stable liquid formulations of cyclophosphamide and processes to prepare the same
Study shows sieves work great to dry moist BA
http://pubs.acs.org/doi/abs/10.1021/i260023a001?journalCode=iepdaw
BA readily absorbs moisture from air and it's difficult to dry as it forms an azeotrope
Azeotrope tables - Wikipedia
4A sieves also work to dry BB
https://www.hindawi.com/journals/jther/2014/487403/
So say goodbye to cloudy gear forever!
Molecular sieve - Wikipedia
and so easy to use:
heat in oven/microwave oven to expel air
allow to cool off
pour in oil bottle
close bottle cap
allow to dry for 24+ hours
remove sieves from oil with a simple mesh, and it's ready to use.
Either 3A or 4A sieves will work
but maybe 4A are preferable because of FDA approval
Molecular sieve - Wikipedia
Molecular sieves drying is a pharma approved process for injectables (before sterile filtration)
Patent US20170143744 - Stable liquid formulations of cyclophosphamide and processes to prepare the same
Study shows sieves work great to dry moist BA
http://pubs.acs.org/doi/abs/10.1021/i260023a001?journalCode=iepdaw
BA readily absorbs moisture from air and it's difficult to dry as it forms an azeotrope
Azeotrope tables - Wikipedia
4A sieves also work to dry BB
https://www.hindawi.com/journals/jther/2014/487403/
So say goodbye to cloudy gear forever!
