SILICIC ACID PRECIPITATED EXTRA PURE HEA (C005B-004620)

Analysis Note

Identity: passes test
Assay (gravimetric, SiO₂, calc. on ignited substance): ≥ 99 %
Chloride (Cl): ≤ 0.05 %
Heavy metals (as Pb): ≤ 0.005 %
Fe (Iron): ≤ 0.03 %
With hydrofluoric acid non volatile matter (as sulfate, ignited basis): ≤ 1 %
Loss on ignition (1000 °C): 10 - 20 %
Particle size (< 0.1 mm): about 99 %
Bulk density: 20 - 60 g/100 ml

Molecular Weight: 60.08 (anhydrous basis). Empirical Formula: O₂Si · xH₂O. Quality Level: 200. Assay: ≥. 99% SiO₂ basis (calculated on ignited on substance, gravimetric). form: solid. potency: >. 10000 . mg/kg LD₅₀, oral (Rat), >. 5000 . mg/kg LD₅₀, skin (Rabbit). impurities: ≤. 1% With hydrofluoric acid non volatile matter (as sulfate, ignited basis). loss: 10-20% loss on ignition, 1000 °C. 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%. cation traces: Fe: ≤. 0.03%, heavy metals (as Pb): ≤. 0.005%. application(s): sample preparation. storage temp.: 2-30°C. InChI: 1S/O2Si/c1-3-2. InChI key: VYPSYNLAJGMNEJ-UHFFFAOYSA-N. Storage Class Code: 13 - Non Combustible Solids. WGK: nwg. Flash Point(F): Not applicable. Flash Point(C): Not applicable.