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Merck
CN

AX0745

Aluminum Sulfate, Octadecahydrate

Synonym(s):

Aluminum Sulfate, Octadecahydrate, Cake alum,Patent alum, Alum

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About This Item

Linear Formula:
Al2(SO4)3 · 14-18H2O
CAS Number:
UNSPSC Code:
12352302
EC Index Number:
233-135-0
Form:
solid
Solubility:
364 g/L
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InChI

1S/2Al.3H2O4S.9H2O/c;;3*1-5(2,3)4;;;;;;;;;/h;;3*(H2,1,2,3,4);9*1H2/q2*+3;;;;;;;;;;;;/p-6

InChI key

KFCWRPFNNIEZRY-UHFFFAOYSA-H

form

solid

concentration

54.0-59.0% Al2(SO4)3

pH

2.5-4.0 (20 °C, 20 g/L in H2O)

mp

90 °C (decomposition)

solubility

364 g/L

cation traces

As: ≤0.001%, Fe: ≤0.005%, heavy metals (as Pb): ≤0.005%

shipped in

ambient

storage temp.

room temp

Quality Level

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Analysis Note

Arsenic (As): 0.001% max
Assay (as Al2(SO4)3): 54.0-59.0%
Heavy metals (as Pb): 0.005% max
Iron (Fe): 0.005% max

pictograms

Corrosion

signalword

Danger

hcodes

Hazard Classifications

Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A

Storage Class

8B - Non-combustible corrosive hazardous materials

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

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