1.02392
Calcium chloride
anhydrous, granular ~ 6 - 14 mm
Synonym(s):
Calcium chloride, Calcium dichloride
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About This Item
Quality Level
assay
~90% (complexometric)
form
solid
potency
2630 mg/kg LD50, skin (Rat)
impurities
≤0.2% Free alkali (as Ca(OH)2)
pH
8-10 (20 °C, 100 g/L in H2O)
mp
772 °C
density
2.15 g/cm3 at 20 °C
storage temp.
2-30°C
SMILES string
[Ca+2].[Cl-].[Cl-]
InChI
1S/Ca.2ClH/h;2*1H/q+2;;/p-2
InChI key
UXVMQQNJUSDDNG-UHFFFAOYSA-L
Application
- Fixed-Bed Column Studies: Continuous fixed-bed column studies utilize Congo red to investigate the adsorption capabilities of various natural adsorbents, such as Nelumbo nucifera (lotus) leaf adsorbent. These studies help in understanding the dynamics of dye removal in real-world applications, providing valuable data for scaling up adsorption processes for industrial wastewater treatment (Vairavel and Rampal, International Journal of Environmental Analytical Chemistry, 2021).
- Nanocomposite Adsorbents: Congo red is used in studies involving nanocomposite adsorbents, such as calcined ZnAl-LDH (layered double hydroxides) trapped in alginate beads. These studies explore the adsorption efficiency, regeneration, and reusability of nanocomposites for removing dyes from water, contributing to the development of advanced materials for environmental cleanup (El Khanchaoui et al., International Journal of Environmental Analytical Chemistry, 2021).
Analysis Note
Free alkali (as Ca(OH)₂): ≤ 0.2 %
Water absorption capacity (24 hrs.,80 % relative humidity): ≥ 20 %
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signalword
Warning
hcodes
Hazard Classifications
Eye Irrit. 2
Storage Class
13 - Non Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
Regulatory Listings
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Substances Subject to be Indicated Names
ishl_indicated
Substances Subject to be Notified Names
ishl_notified
Certificates of Analysis (COA)
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