This material changes its color from orange to colorless after moisture absorption (approx. 6 wt% load). The protocol for the regeneration is to spread the beads in a thin layer (max 10 mm) in a oven tray, preheat the oven at 110-130C, dry the beads for 90 minutes (or more if after 90 minutes the color is not orange again), and let them cool and place in a airtight container.
94098
Drying pearls orange
Synonym(s):
Aluminum silicate, Silica gel orange
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description
heavy metal free
Quality Level
form
beads
capacity
>30 % absorption capacity (water)(at 80% rel. humidity, 25°C)
SMILES string
[Si](=O)=O
InChI key
VYPSYNLAJGMNEJ-UHFFFAOYSA-N
General description
Drying pearls Orange (Silica gel orange), commonly used as a drying agent in laboratories, is suitable for drying all gases and solids. It is used in desiccators, drying towers, and absorption tubes. Silica gel orange provides longer storage conditions due to its large surface area which enables high absorption capacity. It also changes its color from orange to colorless after moisture absorption (approx. 6 wt% load).[1][2][3]
Reconstitution
regeneration by drying at 130 - 160 °C; do not heat above 160 °C
Storage Class Code
13 - Non Combustible Solids
WGK
nwg
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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Bonjour, quelle est la couleur des perles quand c'est sec et quand c’est humide? Quelle est la température et le temps nécessaire pour régénérer ces perles? Merci d'avance!
1 answer-
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