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Merck

1.07910

Kieselguhr

purified and calcined

Synonym(s):

Kieselguhr

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About This Item

CAS Number:
UNSPSC Code:
11101527
EC Index Number:
272-489-0
NACRES:
NB.21
MDL number:

Product Name

Kieselguhr, purified and calcined

SMILES string

[Li]CCCC

InChI

1S/C4H9.Li/c1-3-4-2;/h1,3-4H2,2H3;

InChI key

MZRVEZGGRBJDDB-UHFFFAOYSA-N

technique(s)

thin layer chromatography (TLC): suitable

pH

10 (20 °C, 100 g/L in H2O)

mp

>450 °C

solubility

0.0037 g/L

density

2.36 g/cm3 at 20 °C

bulk density

300 kg/m3

storage temp.

no temp limit

Quality Level

Analysis Note

Identity: passes test
Substances soluble in hydrochloric acid: ≤ 1.0 %
pH-value (10 %; water): 5 - 9
Chloride (Cl): ≤ 0.01 %
Sulphate (SO₄): ≤ 0.02 %
Fe (Iron): ≤ 0.05 %
Heavy metals (as Pb): ≤ 0.01 %
Loss on ignition (980 °C): ≤ 0.2 %
Particle size (< 0.1 mm): about 98
Bulk density: about 20

pictograms

Health hazard

signalword

Danger

hcodes

Hazard Classifications

STOT RE 1 Inhalation

target_organs

Lungs

Storage Class

6.1D - Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


Certificates of Analysis (COA)

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