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Key Documents

18616

Sigma-Aldrich

Kaolin

heavy, powder

Synonym(s):

Aluminum silicate hydroxide, Bolus, Hydrated aluminum silicate

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About This Item

Linear Formula:
~Al2Si2O5(OH)4
CAS Number:
EC Number:
MDL number:
UNSPSC Code:
11111803
NACRES:
NA.25
form:
powder

form

powder

Quality Level

quality

heavy

impurities

acid. or alk. react. impurities, in accordance
organic impurities, in accordance
≤0.01% heavy metals (as Pb)
≤1% soluble in acid (as SO4)

capacity

in accordance absorption capacity

anion traces

chloride (Cl-): ≤250 mg/kg
sulfate (SO42-): ≤1000 mg/kg

cation traces

Ca: ≤250 mg/kg

suitability

in accordance for identity
passes test for swelling capacity

application(s)

pharmaceutical (small molecule)

SMILES string

[Si](=O)(O[Si](=O)O[Al]=O)O[Al]=O.O.O

InChI

1S/2Al.O5Si2.2H2O.2O/c;;1-6(2)5-7(3)4;;;;/h;;;2*1H2;;/q2*+1;-2;;;;

InChI key

NLYAJNPCOHFWQQ-UHFFFAOYSA-N

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Related Categories

Storage Class Code

11 - Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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