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1.05110

Supelco

Potassium hexahydroxoantimonate(V)

cryst. for analysis EMSURE®

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Synonym(s):
Potassium hexahydroxoantimonate(V), Potassium antimonate
Linear Formula:
K[Sb(OH)6]
CAS Number:
Molecular Weight:
262.90
MDL number:
EC Index Number:
235-387-7

Quality Level

product line

EMSURE®

assay

≥99.0% (calculated on calcined substance, iodometric)

form

solid

pH

7.5-9.0 (20 °C, 20 g/L in H2O)

solubility

20 g/L

bulk density

1200 kg/m3

cation traces

Na: ≤0.2%
excess alkali: ≤0.1% (as KOH)

storage temp.

2-30°C

InChI

1S/K.6H2O.Sb/h;6*1H2;/q+1;;;;;;;+3/p-6

InChI key

IDVSLFDKDQVCAP-UHFFFAOYSA-H

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1 of 4

This Item
P43081.051045.43839
vibrant-m

P4308

Potassium hexahydroxoantimonate(V)

vibrant-m

1.05104

Potassium phosphate dibasic

vibrant-m

5.43839

Potassium phosphate dibasic

assay

≥99.0% (calculated on calcined substance, iodometric)

assay

-

assay

≥99.0% (alkalimetric)

assay

-

form

solid

form

powder

form

solid

form

solid

pH

7.5-9.0 (20 °C, 20 g/L in H2O)

pH

-

pH

9 (20 °C, 10 g/L in H2O)

pH

9 (20 °C, 10 g/L in H2O)

solubility

20 g/L

solubility

-

solubility

1600 g/L

solubility

1600 g/L

bulk density

1200 kg/m3

bulk density

-

bulk density

700‑1000 kg/m3

bulk density

700‑1000 kg/m3

Analysis Note

Identity: passes test
Assay (iodometric, calculated on calcined substance): ≥ 99.0 %
Free alkali (as KOH): ≤ 0.1 %
Na (Sodium): ≤ 0.2 %

Legal Information

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

pictograms

Exclamation markEnvironment

signalword

Warning

Hazard Classifications

Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Aquatic Chronic 2

Storage Class

13 - Non Combustible Solids

wgk_germany

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable


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