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1.00657

Silicic acid

precipitated extra pure light

Synonym(s):

Silicic acid

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Size/SKUAvailabilityPrice
1 kg
Please contact Customer Service for Availability
PLN 617.00
10 kg
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PLN 2,780.00

About This Item

Empirical Formula (Hill Notation):
O2Si · xH2O
CAS Number:
Molecular Weight:
60.08 (anhydrous basis)
MDL number:
UNSPSC Code:
12352308
EC Index Number:
231-545-4
NACRES:
NB.21
Assay:
99-100.5% SiO2 basis (calculated on ignited substance, gravimetric)
Form:
solid

PLN 617.00


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Quality Segment

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

SMILES string

[Si](=O)=O

InChI

1S/O2Si/c1-3-2

InChI key

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

Analysis Note

Assay (gravimetric, SiO₂, calc. on ignited substance): 99.0 - 100.5 %
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

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1 of 1

This Item
1.00656777242904392
assay

99-100.5% SiO2 basis (calculated on ignited substance, gravimetric)

assay

≥99% SiO2 basis (calculated on ignited on substance, gravimetric)

assay

99% trace metals basis

assay

-

Quality Level

200

Quality Level

200

Quality Level

100

Quality Level

-

form

solid

form

solid

form

solid

form

powder

pH

3.0-8.0 (3.3% in water)

pH

-

pH

-

pH

-

storage temp.

no temp limit

storage temp.

2-30°C

storage temp.

-

storage temp.

-

solubility

water: insoluble at 20 °C

solubility

water: insoluble at 20 °C

solubility

-

solubility

-


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Storage Class

13 - Non Combustible Solids

wgk

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable



Certificates of Analysis (COA)

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Questions

  1. Hello I am wondering if this is the same as hydrated silica? I'm hoping to use these in skin care items. Thanks

    1 answer
    1. This product is intended for research use only and it is not suitable for human or veterinary use. However, a common term for Silicic Acid is hydrated silica.

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