I found an analysis of the bag and it says "garunteed minimum 77% CaCl2" - may contain various amounts of the following:
NaCl
KCl
SrCl2
water
CaCl2 info
Hydrate level - Density - Melting Point/decomp point
Anhydrous - 2.15g/cc - 772-775C (1,935C boiling point)
monohyd - 2.24g/cc - 260C
dihyd - 1.85 g/cc - 175C
tetrahyd - 1.83g/cc - 45.5C
Hexahyd - 1.71g/cc - 30C
I'd like to do some test to see how much of the 23% is crystiline H2O - so I'll measure say 200g then heat till melted, seal in airtight container,
weigh again.
If this product is the Hexahydrate, that would mean 21% is H2O leaving less than 2% contaminates which is really pretty pure in my book for a $9 bag
(1lb of 98% CaCl2 has been sold on Amazon for $25 I've seen)
Here is information on the other listed "contaminates"
SrCl2 - forms di and hexa hydrates hexahydrate melts at 61C MP of 874 is listed as anhhydrous but IDK if that means at that temp the dihydrate
looses the H20 to form anhydrous and melts at the same point??
SrCl2 - Strontium Chloride
Hydrate level - Density - Melting Point/decomp point
Anhydrous - 3.052 g/cc - 874C (BP 1,250C)
dihydrate - 2.672 g/cc - MP/decomp??
hexahydrate 1.93 g/cc - 61C
NaCl
no hydrates, 2.165g/cc, MP 801C, BP 1,413C
KCl
no hydrates, 1.984 g/cc, MP 770C, BP 1,420C |