Siliceous earth, purified and calcined, Pharmpur®, NF

- Synonyms: Infusorial earth, Diatomaceous earth, Diatomite
- SiO2
- M = 60,08 g/mol
- CAS [68855-54-9]
- EINECS-No.: 272-489-0
- Solub. in water: (20 ºC): almost insoluble
- Melting point: > 450°C
- Boiling point: 2230 ºC
- GHS-P sentences: P308+P311
- Tariff number: 2512 00 00 00
- Applications: for laboratory uses, in pharma industry.

SPECIFICATIONS
solubility in water: max. 0,2 %
soluble in acid : max. 2,0 %
arsenic eliminated by washing: max. 10 ppm
lead eliminated by washing: max. 10 ppm
loss on drying (105 ºC): max. 0,5 %
residue on ignition (980 C): max. 2,0 %
limit of nonsiliceous substances: passes test