69012-64-2 Usage
Chemical Properties
Amorphous silica, the noncrystalline form of SiO2, is a transparent to gray, odorless, amorphous powder
Uses
None; produced only as a by-product.
Health Hazard
Amorphous silica fume exposure
is associated with recurrent fever, similar
to metal fume fever, and nonprogressive pulmonary
changes.More recently, the importance of silica
fume particle size on toxicity has been noted.8
Specifically, particles of the ultrafine size range
may be expected to have higher toxicity compared
with particles of larger size.
Safety Profile
An inhalation hazard. Much less toxic than crystalline forms. Does not cause silicosis. See also other silica entries
Incompatibilities
Silica, amorphous is a noncombustible solid. Generally unreactive chemically. Incompatible with fluorine, oxygen difluoride, chlorine trifluoride. Soluble in molten alkalis and reacts with most metallic oxides at high temperature.
Waste Disposal
Sanitary landfill.
Check Digit Verification of cas no
The CAS Registry Mumber 69012-64-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,0,1 and 2 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 69012-64:
(7*6)+(6*9)+(5*0)+(4*1)+(3*2)+(2*6)+(1*4)=122
122 % 10 = 2
So 69012-64-2 is a valid CAS Registry Number.