1.00657
Silicic acid
precipitated extra pure light
Synonym(s):
Silicic acid
About This Item
Recommended Products
Quality Level
Assay
99-100.5% SiO2 basis (calculated on ignited substance, gravimetric)
form
solid
potency
>10000 mg/kg LD50, oral (Rat)
>5000 mg/kg LD50, skin (Rabbit)
loss
≤8.5% loss on ignition, 2 h, 900 °C
pH
3.0-8.0 (3.3% in water)
mp
1710 °C
solubility
water: insoluble at 20 °C
density
2-6 g/cm3 at 20 °C
bulk density
60‑600 kg/m3
anion traces
chloride (Cl-): ≤0.05%
sulfate (SO42-): ≤0.5%
cation traces
Fe: ≤0.03%
heavy metals (as Pb): ≤0.0025%
application(s)
sample preparation
storage temp.
no temp limit
InChI
1S/O2Si/c1-3-2
InChI key
VYPSYNLAJGMNEJ-UHFFFAOYSA-N
Related Categories
Analysis Note
Identity: passes test
pH-value (3.3 %, water): 3.0 - 8.0
Chloride (Cl): ≤ 0.05 %
Sulfate (SO₄): ≤ 0.5 %
Heavy metals (as Pb): ≤ 0.0025 %
Fe (Iron): ≤ 0.03 %
Loss on ignition (2 h, 900 °C): ≤ 8.5 %
Particle size (< 0.1 mm): about 99
Bulk density: about 6
Storage Class Code
13 - Non Combustible Solids
WGK
nwg
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Regulatory Listings
Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.
ISHL Indicated Name
Substances Subject to be Indicated Names
ISHL Notified Names
Substances Subject to be Notified Names
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
Already Own This Product?
Find documentation for the products that you have recently purchased in the Document Library.
Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.
Contact Technical Service