In the microscopic world where a single impurity particle can ruin an expensive semiconductor chip or compromise precision coatings, material purity becomes non-negotiable. For electronics, semiconductor manufacturing, and precision engineering sectors, selecting the right silicon dioxide (SiO2) makes all the difference. Admatechs' high-purity synthetic spherical silica offers groundbreaking solutions to these critical challenges.
The Microscopic Guardian of Purity
Admatechs specializes in premium silicon dioxide products, with its synthetic spherical silica standing out through unique advantages. This material combines truly spherical particle morphology with precise particle size distribution and exceptional purity, minimizing impurity-related defects. For industries demanding material perfection, this represents a significant advancement.
Core Advantages: The Perfect Trio of Purity, Particle Size, and Dispersion
Admatechs' synthetic spherical silica excels through several key characteristics:
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Ultra-High Purity:
The product comes in two purity grades: SO-C (standard) and SO-E (low alpha radiation). The SO-E grade specifically addresses memory chip applications where low alpha emissions help prevent soft errors and improve device reliability. While slightly less pure than SO-E, the SO-C grade remains free from ionic impurities, making it ideal for electrical materials.
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Precision Particle Sizing:
With controlled average particle sizes ranging from 0.2 to 2.0 microns, users can select optimal dimensions for specific applications.
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Superior Dispersion:
The non-porous structure ensures excellent dispersion in various matrix materials, preventing agglomeration and ensuring consistent performance.
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True Sphericity and Narrow Size Distribution:
Perfectly spherical particles enhance flow characteristics and reduce friction, while tight size distribution guarantees material uniformity.
Product Specifications: SO-C vs. SO-E Series
Admatechs offers two primary silica series with detailed specifications:
SO-C Series (Standard Grade)
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Product Name
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Particle Size (μm)
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Surface Area (m²/g)
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|
SO-C1
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0.2-0.4
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10-20
|
|
SO-C2
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0.4-0.6
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4-7
|
|
SO-C4
|
0.9-1.2
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3-6
|
|
SO-C5
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1.3-1.7
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3-5
|
|
SO-C6
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1.8-2.3
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1.5-2.5
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SO-E Series (Low Alpha Radiation Grade)
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Product Name
|
Particle Size (μm)
|
Surface Area (m²/g)
|
|
SO-E1
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0.2-0.4
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10-20
|
|
SO-E2
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0.4-0.6
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4-7
|
|
SO-E4
|
0.9-1.2
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3-6
|
|
SO-E5
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1.3-1.7
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3-5
|
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SO-E6
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1.8-2.3
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1.5-2.5
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Purity Data: Quantifying Excellence
The purity specifications demonstrate Admatechs' commitment to quality:
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Component
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SiO2 (%)
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SO-C (Standard)
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SO-E (Low Alpha)
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SiO2
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>99.8
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>99.8
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>99.9
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Moisture (%)
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<0.05
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<0.05
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<0.05
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Fe (ppm)
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<500
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<500
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<20
|
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Al (ppm)
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<700
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<700
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<100
|
|
U (ppb)
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-
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-
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<0.3
|
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Na+ (ppm)
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<1.0
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<1.0
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<0.5
|
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K+ (ppm)
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<1.0
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<1.0
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<0.5
|
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Cl- (ppm)
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<2.0
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<2.0
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<1.0
|
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EC (μS/cm)
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<15
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<15
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<6
|
|
pH
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4.2-5.0
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4.2-5.0
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4.5-6.0
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Applications: From Electronics to Precision Coatings
The high-purity spherical silica serves multiple industries:
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Electronics:
As encapsulation filler to enhance reliability and thermal conductivity; as printed circuit board filler to improve strength and heat resistance.
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Resin Composites:
For engineering plastics to boost strength, wear resistance, and thermal stability; for precision molding to improve accuracy and surface finish; for coatings to enhance durability and corrosion resistance.
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Ceramics:
As additive to optimize sintering and mechanical properties.
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Anti-Blocking Agents:
For surface treatment of films and plastics to prevent sticking.
Case Examples: SO-C1/SO-E1, SO-C2/SO-E2, SO-C5/SO-E5
Different product variants serve distinct purposes. The low-alpha SO-E1 frequently appears in memory chip encapsulation to reduce soft error rates. SO-C2 enhances wear resistance and gloss in precision coatings, while SO-C5 improves strength and heat resistance in engineering plastics.
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