Steve - To the best of my recollection, Quadrol was added to OAWSF solder pastes typically to provide some heat stability and body/rheology, and yet to remain reasonably water soluble. At least in Sn/Pb systems- not sure about PbF. Rather like a poly-alkylene glycol.
I seem to recall that the amine group provided some limited solder activity also.
Hope this helps.
Rich Kraszewski
PLEXUS
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Bev Christian
Sent: Friday, April 11, 2014 7:46 PM
To: [log in to unmask]
Subject: Re: [TN] What is QuadrolR and it's function in a water soluble flux?
Steve,
Here is what I found so far:
N,N,N',N'-Tetrakis(2-hydroxypropyl)ethylenediamine
mp : 32°C
bp : 175-181 °C0.8 mm Hg(lit.)
density : 1.03 g/mL at 20 °C(lit.)
vapor pressure : 1 mm Hg ( 20 °C)
refractive index : n20/D 1.4812(lit.)
Fp : >230 °F
Water Solubility : miscible
Merck : 14,3599
CAS DataBase Reference: 102-60-3(CAS DataBase Reference)
EPA Substance Registry System:
2-Propanol, 1,1',1'',1'''-( 1,2-ethanediyldinitrilo)tetrakis-
clear colorless to pale yellow viscous liquid
Used as a buffer for trifluoroacetic acid.
Used for drug development.
"Quadrol is used as an intermediate and catalyst in chemical reactions, as a
complexing and chelating agent, and as a humectant, plasticizer, surfactant
solubilizer, and viscosity control agent." From a submission from BASF to
the EPA.
Regards,
Bev
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Steve Gregory
Sent: Friday, April 11, 2014 2:53 PM
To: [log in to unmask]
Subject: [TN] What is QuadrolR and it's function in a water soluble flux?
Hi all,
Got a question about a chemical called Quadrol(r). I was told that it is
a constituent of the water soluble flux in our paste.
I'm experiencing solder balls, and was told it may be caused from a
certain batch of Quadrol(r) that was used.
From someone who has no real chemistry background, can someone educate
me what is the function of Quadrol(r) is in a water soluble flux?
I'm doing something dangerous here, trying to learn something
new....hehehe.
Steve
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