EUROPEAN REGULATIONS REACH
Desiccants availableDesiccants available
Desiccants available on the market
On the market, many kinds of desiccant are available; there is oranges silicagels, "brown silcagel" and molecular sieves (or ZR gel). Most of the suppleirs of those kind of desiccant argue that this kind of products is safe for human and environement. What are the facts.
Following the last information of European Commission, except the blue (Cobalt Dichloride), no one of them allow desiccant breathers to work correctly. ECHA is the official department of European Commission, in charge of the application of European regulations and directives concerning chemical substances: prioritisation_cobalt_dichloride
85.31 Ko
General data on desiccants
Bentonite Clay
-Absorbs 25% of its weight in moisture
-High dust yield, requiring expensive packaging to minimize dust
Molecular Sieve
-Absorbs 22% of its weight in moisture
-Difficult clean up packaging damaged
Silica Gel -Best Choice
-Absorbs 40% of weight in moisture
-Absorb moisture up to 220°F (104°C) -most efficient up to 100°F (38°C)
-Yields practically no dust particles, making it a good choice for being packaged with dry food or electronic items
-Several chemical options to indicate moisture with colour.
For further, Please read those links.
http://www.articlesbase.com/science-articles/comparing-commercial-desiccants-silica-gel-clay-and-molecular-sieve-948261.html
Comparison 87.51 Ko
Orange additif change of colour at 6% stauration of the desiccant, see page 1 (Third column) and the curve page 2 (It means that silicagel with orange additive must be replaced more frequently that when it use blue additive): Orange additif 94.73 Ko
Oranges silicagels
The main product use an additive, for abour 5%, that manufacturers call Iron Salts: SORBSIL C "Chameleon", Trockenperlen orange.
An other one use an additive called Phenolphthalein
An other one use, for 0,9%, an additive that is Gentian Violet (or Crystal Violet)
Details on oranges silicagels
Silicagel called "Brown Silicagel" & Molecular sieves:
Details on "Brown silicagel" & ZR gel
What about Cobalt Chloride used, at 0,5% to treat the silicagel use by DESCASE?
Details on blue silicagel
Dielectric and industrial oils.
Classification for industrial oils
Following the last information of European Commission, except the blue (Cobalt Dichloride), no one of them allow desiccant breathers to work correctly. ECHA is the official department of European Commission, in charge of the application of European regulations and directives concerning chemical substances: prioritisation_cobalt_dichloride
85.31 KoGeneral data on desiccants
Bentonite Clay
-Absorbs 25% of its weight in moisture
-High dust yield, requiring expensive packaging to minimize dust
Molecular Sieve
-Absorbs 22% of its weight in moisture
-Difficult clean up packaging damaged
Silica Gel -Best Choice
-Absorbs 40% of weight in moisture
-Absorb moisture up to 220°F (104°C) -most efficient up to 100°F (38°C)
-Yields practically no dust particles, making it a good choice for being packaged with dry food or electronic items
-Several chemical options to indicate moisture with colour.
For further, Please read those links.
http://www.articlesbase.com/science-articles/comparing-commercial-desiccants-silica-gel-clay-and-molecular-sieve-948261.html
Comparison
87.51 KoOrange additif change of colour at 6% stauration of the desiccant, see page 1 (Third column) and the curve page 2 (It means that silicagel with orange additive must be replaced more frequently that when it use blue additive): Orange additif
94.73 KoOranges silicagels
The main product use an additive, for abour 5%, that manufacturers call Iron Salts: SORBSIL C "Chameleon", Trockenperlen orange.
An other one use an additive called Phenolphthalein
An other one use, for 0,9%, an additive that is Gentian Violet (or Crystal Violet)
Details on oranges silicagels
Silicagel called "Brown Silicagel" & Molecular sieves:
Details on "Brown silicagel" & ZR gel
What about Cobalt Chloride used, at 0,5% to treat the silicagel use by DESCASE?
Details on blue silicagel
Dielectric and industrial oils.
Classification for industrial oils
