Colloidal Silica
- CAS No.
- 112926-00-8
- Chemical Name:
- Colloidal Silica
- Synonyms
- COLLOIDAL SILICA;SAND;SILICA GEL 60;SILICA GEL DESICCANT;IATROBEADS;SILICA STANDARD;SILICA GEL ORANGE;silicagel,pptd.,cryst.-free;SILICA GEL 60 FOR COLUMN CHROMATOGRAPHY;gsj-30
- CBNumber:
- CB00123414
- Molecular Formula:
- O2Si
- Molecular Weight:
- 60.0800018310547
- MDL Number:
- MFCD03098976
- MOL File:
- Mol file
- MSDS File:
- SDS
Melting point | 1610°C |
---|---|
Boiling point | 2230℃ |
Density | 2.6 |
Flash point | 23°C |
storage temp. | 2-8°C |
form | powder or granules |
Specific Gravity | 0.88g/ml |
color | blue |
Odor | Odorless |
PH Range | About 7.0 |
PH | ~6.8 (10% in aq. suspension) |
Water Solubility | Insoluble in water |
Hydrolytic Sensitivity | 6: forms irreversible hydrate |
Merck | 14,8493 |
CAS DataBase Reference | 112926-00-8 |
FDA 21 CFR | 175.390 |
EWG's Food Scores | 1 |
FDA UNII | Y6O7T4G8P9 |
EPA Substance Registry System | Silica gel, pptd., cryst.-free (112926-00-8) |
SAFETY
Risk and Safety Statements
Symbol(GHS) | ![]() GHS08 |
---|---|
Signal word | Danger |
Hazard statements | H350i-H360F-H412 |
Precautionary statements | P201-P273-P308+P313 |
Hazard Codes | Xi,T,N,Xn |
Risk Statements | 20-37-42/43-49-36/37-48/20-51/53-68-50/53-41-22-60 |
Safety Statements | 22-24/25-45-36/37-53-26-36-61-60-39 |
RIDADR | 1993 |
OEB | B |
OEL | TWA: 6.0 mg/m3 |
WGK Germany | 2 |
RTECS | VV7315000 |
F | 3 |
Hazard Note | Harmful/Irritant |
TSCA | Yes |
Colloidal Silica price More Price(159)
Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
---|---|---|---|---|---|---|---|
Sigma-Aldrich | SX0143L | Silica Gel Grade 923 100-200 Mesh | 112926-00-8 | 500G | $844 | 2024-03-01 | Buy |
Sigma-Aldrich | 97729-U | Flash Silica dried,pkgof1?kg,spherical | 112926-00-8 | 1kg | $534 | 2024-03-01 | Buy |
Sigma-Aldrich | 97728-U | Flash Silica dried,pkgof100?g,spherical | 112926-00-8 | 100g | $95.2 | 2024-03-01 | Buy |
Sigma-Aldrich | 89943 | Silica gel for column chromatography, 60 | 112926-00-8 | 1kg | $339 | 2024-03-01 | Buy |
Sigma-Aldrich | 717185 | Silica gel technical grade, pore size 60??, 230-400?mesh particle size, 40-63?μm particle size | 112926-00-8 | 1KG | $102 | 2024-03-01 | Buy |
Colloidal Silica Chemical Properties,Uses,Production
Description
In general terms, colloidal silica is a dispersion of amorphous silicon dioxide (silica) particles in water. These amorphous silica particles are produced by polymerizing silica nuclei from silicate solutions under alkaline conditions to form nanometer-sized silica sols with high surface area. A charge is then induced on the silica nanoparticle surface, allowing the silica particles to repel one another and form a stable dispersion, or colloid.
Chemical Properties
Colloidal silicas are produced in a variety of grades that range in several factors. Particle size typically varies from 5nm to 40nm, and particle size distribution can vary from narrow to wide depending on the manufacturing process. Standard colloidal silica is stable at a pH of 8 - 10.5 and carries an anionic surface charge that is stabilized with sodium or ammonium. In certain grades, some silicon atoms in the silica particle are replaced with aluminate ions to enhance stability in a wider pH range, usually 3.5 - 10.5.
Application
Colloidal silica is extensively used as a rheological additive in personal care products to control flowability. Recently, mesoporous silica nanoparticles have been explored as nanocarriers for delivering drugs and genes. Silica nanoparticles possess a wide range of particle sizes, controllable pore volumes, a high drug-loading capacity, and abundant silanol groups for surface modification and functionalization, and they have been widely used in drug delivery. Increasing efforts have been made to investigate their skin penetration ability and toxicity.
Colloidal Silica Preparation Products And Raw materials
Raw materials
Preparation Products
1of8
Supplier | Tel | Country | ProdList | Advantage | |
---|---|---|---|---|---|
Hebei Yanxi Chemical Co., Ltd. | +86-17531190177; +8617531190177 | peter@yan-xi.com | China | 6011 | 58 |
Anhui Ruihan Technology Co., Ltd | +8617756083858 | daisy@anhuiruihan.com | China | 994 | 58 |
Hebei Jingbo New Material Technology Co., Ltd | +8619931165850 | hbjbtech@163.com | China | 1000 | 58 |
Henan Fengda Chemical Co., Ltd | +86-371-86557731 +86-13613820652 | info@fdachem.com | China | 20327 | 58 |
Hebei Kangcang new material Technology Co., LTD | +8615713292910 | Nancy@kangcang.com.cn | China | 341 | 58 |
Hebei Saisier Technology Co., LTD | +86-18400010335 +86-18034520335 | admin@hbsaisier.cn | China | 981 | 58 |
Hebei Longbang Technology Co., LTD | +86-18032476855 +86-18032476855 | admin@hblongbang.com | China | 958 | 58 |
Jiangxi New jiayi New Materials Co., Ltd. | 15988280056 | mina@xjysi.com | CHINA | 27 | 55 |
Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21675 | 55 |
Shanghai Time Chemicals CO., Ltd. | +86-021-57951555 +8617317452075 | jack.li@time-chemicals.com | China | 1807 | 55 |
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View Lastest Price from Colloidal Silica manufacturers
Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
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2023-08-21 | Sodium tetraborate pentahydrate
12179-04-3
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1kg | 99% | 100tons | Anhui Ruihan Technology Co., Ltd |
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- Sodium tetraborate pentahydrate
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