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A5232712

Kaolin(superfine) , 3000 mesh (5um), burn , 1332-58-7

Synonym(s):
China clay;Kaolin clay;Hydrated aluminum silicate;Aluminum silicate hydroxide;Bolus

CAS NO.:1332-58-7

Empirical Formula: H2Al2O8Si2.H2O

Molecular Weight: 258.16

MDL number: MFCD00062311

EINECS: 310-194-1

Pack Size Price Stock Quantity
1KG RMB51.20 In Stock
5KG RMB211.20 In Stock
25KG RMB684.80 In Stock
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Update time: 2022-07-08

PRODUCT Properties

Melting point: 1750 °C
Density  2,6 g/cm3
refractive index  1.6200
storage temp.  no restrictions.
solubility  Practically insoluble in diethyl ether, ethanol (95%), water, other organic solvents, cold dilute acids, and solutions of alkali hydroxides.
form  Powder
color  75-96, Hunter Brightness
PH 6-7 (50g/l, H2O, 20℃)(slurry)
Water Solubility  insoluble H2O, dilute acids and alkali hydroxides [HAW93]
Dielectric constant 1.8 - 2.8(0.0℃)
Stability: Stable. Substances to be avoided include strong oxidizing agents.
InChI InChI=1S/2Al.O5Si2.2H2O.2O/c;;1-6(2)5-7(3)4;;;;/h;;;2*1H2;;/q2*+1;-2;;;;
InChIKey NLYAJNPCOHFWQQ-UHFFFAOYSA-N
SMILES [Si](=O)(O[Al]=O)O[Si](=O)O[Al]=O.O.O

Description and Uses

Kaolin or china clay is a naturally occurring, almost white, hydrated aluminum silicate. This material does not exhibit a high degree of slip. Kaolin boasts good absorbency, is dense, and is sometimes used to reduce the bulk densities in loose powder products. It provides a matte surface effect, which can slightly reduce sheen left by some talc products.

Adsorbant.

Safety

Symbol(GHS) 
GHS07
Signal word  Warning
Hazard statements  H319-H315
Precautionary statements  P264-P280-P302+P352-P321-P332+P313-P362-P264-P280-P305+P351+P338-P337+P313P
Safety Statements  22-24/25
OEB B
OEL TWA: 10 mg/m3 (total)
WGK Germany  -
RTECS  GF1670500
TSCA  Yes
HS Code  25070090

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