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Large Particle Colloidal Silica (20-155nm) | For Abrasives, CMP, Polishing | ISO Certified, Free Samples buy - large image1

Large Particle Colloidal Silica (20-155nm) | For Abrasives, CMP, Polishing | ISO Certified, Free Samples buy - image1

Large Particle Colloidal Silica (20-155nm) | For Abrasives, CMP, Polishing | ISO Certified, Free Samples buy - image2

Large Particle Colloidal Silica (20-155nm) | For Abrasives, CMP, Polishing | ISO Certified, Free Samples

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CAS No.:

7631-86-9

Grade:

Industrial Grade

Port:

Port of Nansha

Packaging:

colloidal silica, silica sol, silica, sio2, binder, surface modifier, adhesion promoter, investment casting, precision investment casting, polishing agent, coating additives, ceramics polishing, ceram

Price valid (until):

2024-05-01

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Advent Silica Materials LLC

Company Type:

Trader

Location:

United States

Qualification:

Main Products:

Colloidal silica

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Product Description
Seller Information
Inquiry History

Description

Advent Silica HSD-Series

Colloidal Silica

Product Description

The HSD series is a customizable series consisting of alkaline, aqueous dispersions of colloidal silica, with the particle size adjustable between 20 nm and 150 nm. Both the silica (SiO₂) content and particle size can be tailored to meet specific requirements. The silica dispersion in this series has a pH range of 9.0 to 11.0. The physical appearance of the HSD series varies from a translucent liquid to opalescent, depending on the silica content.

Characteristics

Property (Units)	Value
Na2O%	<= 0.5
SiO2%	20-50 (customizable)
Target Density (g/cc)	1.13 - 1.40
pH Value (at 20°C)	9.0 - 11.0
Viscosity (at 20°C, mm^2/s)	<=15
Average Particle Size (nm)	30-150 (customizable)
Specific Surface Area (m^2/g)	18-136
Stabilizing Counter Ion	Sodium

Applications

The HSD series is designed to cater to applications where a larger particle size (resulting in a smaller surface area) of the product is preferred. In the initial stages of Chemical Mechanical Planarization (CMP) and surface polishing, larger particle size colloidal silica is desired for its faster material removal rate. In fire-resistant glass, the inclusion of larger particle size colloidal silica enhances the glass's thermal stability, distributes thermal stresses evenly, and maintains higher viscosity under heat. The HSD series is also frequently used in refractory materials to improve mechanical strength and resistance to thermal shock. Additional applications include coatings and concrete.

Packaging Information

Plastic drums (200 liters / ~52.8 gallons)
IBC (1000 liters / ~264 gallons)
Flexitanks

Storage

The products should be transported and stored at a temperature of 20 - 40°C (68 - 104 °F). Avoid direct sunlight for any translucent or transparent packages. Products should be used within 12 months of the manufactured dates.

Additional information can be found in SDS.

Safety & Handling

Review the corresponding Safety Data Sheet (SDS) before handling. Colloidal silica is a synthetic amorphous silica dispersed in a stable form in water. Colloidal silica is not classified as harmful but mildly irritating. Protective gloves should always be used before handling and the use of protective glasses is strongly recommended. In case of skin or eye contact, wash / rinse the area with plenty of water and seek professional medical help if needed.

Additional information can be found in SDS.

Certifications

Manufactured in ISO 9001 and 14001 certified facilities.

Certificates

Basic Info

Product Name:

Silica

Other Name:

Silica;Acticel;Aerosil;Aquafil;Colloidal silica;Colloidal silicon dioxide;Fossil flour;Ludox;Milowhite;Neosil;Protek-Sorb 121;Siflox;Silikil;Si-O-Lite;Super-Cel;Verticurine;Aerosil 175;Min-U-Sil;Silicon oxide (SiO2);Cab-O-Sil;Vulkasil S;Cab-O-Sil MS 7;Aerosil A 175;Aerosil 200;Cab-O-Sil L 5;FK 500LS;Zipax;Aerogel 200;Aerosil K 7;Aerosil 380;Cab-O-Sil N 5;Extrusil;Ludox HS 40;Manosil VN 3;Nalcoag 1050;Quso G 30;Sillikolloid;Tokusil TPLM;Ultrasil VN 3;Aerosil E 300;Syton 2X;Nalfloc N 1050;Aerosil A 300;Siloxid;HK 400;Snowtex O;U 333;Carplex 30;Quso 51;Aerosil 300;Aerosil M 300;Vitasil 220;Cab-O-Sil ST 1;Cab-O-Sil M 5;Aerosil BS 50;White carbon;Ultrasil VH 3;Snowtex 30;Zeofree 80;Carplex;Neosyl;Corasil II;Silanox 101;Positive Sol 130M;Positive Sol 232;Zorbax SIL;Porasil;Carplex 80;TK 900;Aerosil OK 412;Aerosil TT 600;KS 160;KS 300;KS 404;Ultrasil VN 2;Snowtex;Tokusil Gu-N;Santocel 62;Min-U-Sil 5;Min-U-Sil 30;Iatrobeads 6RS8060;Snowtex N;Snowtex OL;Snowtex C;Sipur 1500;Nalcast PlW;Nalfloc N 1030;Cab-O-Sil H 5;Santocel Z;Santocel CS;Nipsil VN 3;Pregel;Syton;BS 50 (silica);Apasil;Cataloid S 30L;Neosyl 81;Neosyl 224;Neosyl 186;Arogen 500;Lufilen E 100;Himesil A;Tixosil 38A;Imsil A 10;SSA 1;Cataloid S 30H;Cataloid HS 40;Mizukasil P 527;Quso WR 82;Cataloid;Ludox RS 40;Vulkasil C;BS 30 (filler);ZEO 49;Cataloid SI 350;Aerosil 130;HDK-N 20;HDK-V 15;HDK-S 15;Arsil;Aerosil 308;Fransil 251;1340-09-6;9049-77-8;11139-72-3;11139-73-4;12125-13-2;12737-36-9;12753-63-8;12765-74-1;12774-28-6;37220-24-9;37241-25-1;37334-65-9;37340-45-7;37380-93-1;39336-66-8;39372-58-2;39409-25-1;39443-40-8;39456-81-0;50813-13-3;50926-93-7;50935-83-6;51542-57-5;51542-58-6;52350-43-3;53468-64-7;55599-33-2;56645-27-3;56731-06-7;60572-11-4;61673-46-9;62655-73-6;67167-16-2;70536-23-1;70536-61-7;70563-35-8;78207-17-7;83589-56-4;83652-92-0;87501-59-5;89493-21-0;97343-62-9;97709-14-3;98226-40-5;98253-25-9

CAS No.:

7631-86-9

Molecular Formula:

O2Si

InChIKeys:

InChIKey=VYPSYNLAJGMNEJ-UHFFFAOYSA-N

Molecular Weight:

60.08

Exact Mass:

60.08

EC Number:

231-545-4

HScode:

28112200

Categories:

Characteristics

PSA:

34.14000

XLogP3:

-0.61840

Appearance:

White to yellow suspension

Density:

2.56 g/cm³

Melting Point:

164-165 °C

Boiling Point:

2230 °C

Flash Point:

2230°C

Refractive Index:

1.46

Water Solubility:

H2O: insoluble

Storage Conditions:

Refrigerator (+4°C)

Vapor Pressure:

0 mmHg (approx)

Toxicity:

LC inhalation in rat: > 200gm/m3/1H

Flammability characteristics:

Noncombustible Solid

Explosive limit:

Silica gel at -78 deg C adsorbs 4.5 wt % of ozone, and below this temperature the concentration increases rapidly. At below -112 deg C ozone liquefies and there is a potential explosion hazard at temperatures below -100 deg C if organic material is present.

Odor:

Odorless

Taste:

Tasteless

See More Silica Properties 

Hazard Identification

Classification of the substance or mixture

Not classified.

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)	No symbol.
Signal word	No signal word
Hazard statement(s)	none
Prevention	none
Response	none
Storage	none
Disposal	none

Other hazards which do not result in classification

no data available

Handling and Storage

Precautions for safe handling

Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

Conditions for safe storage, including any incompatibilities

Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.

See More Silica Safety Data Sheet 

Seller Information

Business Type:
Trader

Main Products:
Colloidal silica

Location:
Five Greentree Centre, 525 Route 73 North Ste 104

Payment Terms:
TT against copy of documents,D/P,L/C,D/A,TT against B/L draft before shipment,100% TT in advance

Average lead Time:
14

Total Annual Revenue:
Less than $1 million

Total Employees:
Less than 5

Year of Establishment:
2021

We represent some of the world's biggest colloidal silica manufacturers in developing economies with the mission to find you a more cost effective solution in the field of colloidal silica. Our cost advantages are enabled by our manufacturers' world leading scale and expertise in the field.
We have 20+ standard products with the additional ability to customize products to unlock key potential in your applications in a lighting speed. Key applications include investment casting, CMP, coatings, constructions, refractories, catalysts support in oil refinery, paper manufacturing and more.
150,000 metric tons of colloidal silica annually
25 years of experience dedicated to the field
6 ISO-certified manufacturing plants (200,000 sqm)

Inquiry History

69 Inquiries

Country	Product	Purchase Quantity	Date Posted
India	Silicon dioxide	30.00 KG	Jun 13, 2025
Kenya	Silica Dioxide	1 MT	Oct 27, 2023
United States	Octadecyl Bonded Phase Filler	100 KG	Jun 15, 2024
United States	black diesel oil bleaching chemical	100 TON	Jun 13, 2024
Belgium	Silicon dioxide	100.00 KG	Jun 5, 2025
Georgia	Colloidal silicon dioxide	50 KG	Mar 25, 2024
India	Silica mesoporous, 1 μm particle size, pore size ~2 nm	15.3 G	Apr 18, 2025
Nigeria	Silica	10000 MT	Jul 14, 2026
India	Silicon dioxide	100 KG	Jul 13, 2026
India	Silica	2000.00 KG	Apr 23, 2026
South Korea	Silica 96%	1 KG	Apr 16, 2026
Egypt	silicon dioxide	1 KG	Mar 2, 2026
Brazil	Thermal Silica Aerogel Granular Powder	1 KG	Feb 26, 2026
India	Tysil 175 Silica	2000.00 KG	Feb 26, 2026
India	Silicon Dioxide	1.00 KG	Feb 11, 2026
Singapore	Silicon Dioxide	1 KG	Feb 10, 2026
India	Silicon Dioxide	1.00 KG	Feb 6, 2026
Germany	Silicon Dioxide	1 40' Fcl	Feb 4, 2026
Kazakstan	Sio2	112	Jan 26, 2026
Brazil	Silicon dioxide	10 MT	Jan 23, 2026

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