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1.02392

Calcium chloride

Name: Calcium chloride
Brand: MM

anhydrous, granular ~ 6 - 14 mm

别名:

Calcium chloride, Calcium dichloride

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关于此项目

经验公式（希尔记法）:

CaCl₂

化学文摘社编号:

10043-52-4

分子量:

110.98

UNSPSC Code:

12352302

EC Index Number:

233-140-8

NACRES:

NB.21

MDL number:

MFCD00010903

Assay:

~90% (complexometric)

Form:

solid

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属性

Quality Level

200

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

说明

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

Assay (complexometric): about 90
Free alkali (as Ca(OH)₂): ≤ 0.2 %
Water absorption capacity (24 hrs.,80 % relative humidity): ≥ 20 %

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pictograms

GHS07

signalword

Warning

hcodes

H319

pcodes

P264 - P280 - P305 + P351 + P338 - P337 + P313

Hazard Classifications

Eye Irrit. 2

存储类别

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c