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
EPA Substance Registry System :Kaolin (1332-58-7)

Symbol(GHS):
Signal word:	Warning
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362 H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
Precautionary statements:	P264 Wash hands thoroughly after handling. P264 Wash skin thouroughly after handling. P280 Wear protective gloves/protective clothing/eye protection/face protection. P302+P352 IF ON SKIN: wash with plenty of soap and water. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P321 Specific treatment (see … on this label). P332+P313 IF SKIN irritation occurs: Get medical advice/attention. P362 Take off contaminated clothing and wash before reuse.