A5232612
Kaolin(superfine) , ＞ 1250 mesh (11um), 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 | RMB39.20 | In Stock |
|
| 5kg | RMB175.20 | In Stock |
|
| 25KG | RMB784.00 | In Stock |
|
| others | Enquire |
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 |
