Silicic acid hydrate, Reagent Grade

Basic Information

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CAS Number

7699-41-4

Molecular Formula

H2O3Si

Molecular Weight

78.1 g/mol

Basic Physical Properties

Boiling Point

°Cat760mmHg

SMILES

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O[Si](=O)O

InChI

InChI=1S/H2O3Si/c1-4(2)3/h1-2H

InChIKey

IJKVHSBPTUYDLN-UHFFFAOYSA-N

LogP

-1.6136000000000001

Topological Polar Surface Area

57.53 Å²

Hydrogen Bond Donor/Acceptor

2 / 3

Complexity

26.3

Safety Information

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Hazard Statement

H319 Causes serious eye irritation
Serious eye damage/eye irritation

H335 May cause respiratory irritation
Specific target organ toxicity, single exposure; Respiratory tract irritation

Synonyms & References

English

Silicic acid
Silicicacidmeshforchromatography
metasilicic acid
SILICA GEL
HYDRATED SILICA
PRECIPITATED SILICA
SILICA
SILICA ACID
bio-sil
kieselsaure
metasilicic
silicicacid(h2sio3)
SILICIC ACID MESH SIZE: 100-200
SILICIC ACID MESH SIZE: 100+
Silicic acid Suitable for column chroma-tography,100-200 mesh(75-150 μm)
SILICIC ACID MESH SIZE: 200-400
Silicic acid, 100 mesh for chromatography
Kieselsre,E551
Silicicacid,amorph
Kieselsre
Silicicacidhydrate,ReagentGrade
SilicicHYDRATED SILICA
Silicic
Silicic Acid Hydrate
Silicon Dioxide n-Hydrate

MDL Number

MFCD00054122

Customs Code

2842909090

FAQ

What are the physical and chemical properties of silicic acid hydrate (CAS: 7699-41-4)?

Silicic acid hydrate (CAS: 7699-41-4) is a crystalline solid with a molecular weight of approximately 120 g/mol. It has a high solubility in water and exhibits acidic properties. Silicic acid hydrate is highly reactive with bases and can form gels when exposed to moisture. It is often used in organic synthesis as a catalyst and in pharmaceuticals for its buffering capacity.

How is silicic acid hydrate (CAS: 7699-41-4) typically synthesized?

Silicic acid hydrate (CAS: 7699-41-4) is typically synthesized by reacting silica gel with water or by the hydrolysis of silicic acid solutions. Common methods include the neutralization of silica with a base, which leads to the formation of silicic acid hydrate. The process is usually conducted under controlled conditions to ensure the desired crystalline form and purity.

What industries use silicic acid hydrate (CAS: 7699-41-4)?

Silicic acid hydrate (CAS: 7699-41-4) is widely used in various industries. It is a key reagent in pharmaceuticals for its buffering and pH regulation properties. In the polymer industry, it serves as a cross-linking agent. In the semiconductor industry, it is used in etching processes. Additionally, it finds applications in sensors and as a catalyst in organic synthesis.

What precautions should be taken when handling silicic acid hydrate (CAS: 7699-41-4)?

When handling silicic acid hydrate (CAS: 7699-41-4), it is important to wear appropriate personal protective equipment (PPE) such as gloves and goggles. It should be stored in a cool, dry place away from direct sunlight. Spills should be immediately cleaned up using appropriate absorbent materials. Always refer to the Safety Data Sheet (SDS) for detailed safety information and follow all laboratory safety guidelines.