- Synonyms: Gibbsite, Hydrargilliter- Al(OH)3r- M = 78,00 g/molr- CAS [21645-51-2]r- EINECS-No.: 244-492-7r- Solub. in water: (20 ºC): ~ 0,0015 g/lr- Melting point: 300 ºC (release of crystalline water)r- Vapour pressure: (20 ºC) < 0,1 hPar- LD 50 (oral, rat): > 5000 mg/kgr- Tariff number: 2818 30 00 90r- Applications: chromatography, emulsifier, manufacture of dyes, in lubricant compositions, ion exchanger.rrSPECIFICATIONSrassay (complexometric): min. 90 %rarsenic (As): max. 3 ppmrcopper (Cu): max. 0,002 %riron (Fe): max. 0,01 %rlead (Pb): max. 0,002 %rnickel (Ni): max. 0,002 %rresidue on ignition: 32 - 35 %r