Spherical Copper Powder - 100 Mesh - 99.5% Cu

 High-purity spherical copper powder consisting predominantly of spherical copper particles with a bright reddish-copper appearance. The 100 mesh grade is coarse relative to fine and ultra-fine copper powders. Because the particles are rounded and smooth, the powder flows freely, packs to a high tap density, and behaves consistently during die filling and dosing.

Calibrated microscopy of the current material shows that the mass is carried primarily by coarse spheres near the top of the 100 mesh cut, together with a population of smaller particles that contributes relatively little to the overall mass. This produces the characteristic appearance of larger spheres surrounded by finer particles. Practically all of the material passes through mesh 100 sieve, corresponding to an opening of approximately 150 microns, and the typical mass-median particle size is approximately 120 microns.

The coarse spherical morphology provides a lower specific surface area than fine or ultra-fine copper powder, contributing to improved storage stability and slower development of surface oxidation. Copper powder may exhibit limited electrical continuity when tested as loose powder because individual particles are not necessarily in continuous contact. Conductivity can increase substantially after compaction or when the powder is incorporated into a suitable resin, oil, polymer, or other matrix.

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Product Specifications

Product	Spherical Copper Powder
Assay	99.5% Copper minimum
Current Lot Analysis	99.95% Copper
Mesh Grade	100 Mesh
100 Mesh Sieve Opening	Approximately 150 microns
Typical Mass Median (Dv50)	Approximately 120 microns, based on image analysis
Particle Morphology	Predominantly spherical to near-spherical
Appearance	Reddish-copper metallic powder
Chemical Symbol	Cu
CAS Number	7440-50-8
HTS Code	7406.10.0000
NMFC	30743

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Typical Particle Size Distribution

The values below are typical mass-based results obtained from calibrated optical image analysis of the current material. Percentages are cumulative and represent the share of total mass finer than each listed sieve opening. These values are provided as general guidance for particle-size selection and may vary from lot to lot.

Sieve	Opening	Typical Cumulative % Passing by Mass
100 Mesh	150 microns	About 99%
120 Mesh	125 microns	About 64%
140 Mesh	106 microns	About 23%
170 Mesh	90 microns	About 12%
200 Mesh	75 microns	About 5%
325 Mesh	45 microns	About 1%

Typical percentile sizes by mass are approximately Dv10 near 85 microns, Dv50 near 120 microns, and Dv90 near 135 microns. Most of the mass falls between approximately 105 and 150 microns, resulting in a coarse, relatively narrow particle-size distribution immediately below the 100 mesh opening. A finer particle population is present by particle count but contributes relatively little to total mass. These figures are derived from image analysis and are not a certified sieve analysis.

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Particle Characteristics

• Predominantly spherical and near-spherical copper particles with smooth metallic surfaces.
• Free-flowing morphology supports even die filling and consistent dosing.
• Good packing characteristics and high tap density associated with spherical morphology.
• High metallic copper content of 99.5% minimum supports electrical and thermal conductivity after compaction or incorporation into a suitable matrix.
• Lower specific surface area than fine or ultrafine copper provides improved storage stability and slower surface oxidation.
• Coarse spherical particles carry most of the material mass, with a finer population present primarily by particle count.
• Material mass is concentrated near the upper end of the 100 mesh cut, with essentially all material passing 100 mesh.
• Bright reddish-copper metallic appearance.
• Suitable for formulations requiring metallic copper with a relatively coarse, controlled particle size.

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Applications and Benefits:

• Powder metallurgy and press-and-sinter components.
• Sintered porous parts, including filters and self-lubricating bearings, where spherical morphology can provide controlled, interconnected porosity.
• Metal-filled polymers, resins, and epoxies.
• Thermally conductive compounds and gap fillers.
• Bulk metallic filler in compounded conductive pastes, adhesives, and sealants. This is a coarse-particle filler rather than a fine-line printing ink powder.
• Cold casting and metal-filled resin castings that can be sanded and polished to produce a metallic copper surface.
• Decorative metallic epoxy, resin, and coating finishes requiring a visible copper effect.
• Metal-bonded matrix and friction formulations using copper as a matrix metal.
• Copper-based brazing and joining formulations.
• Copper metal reagent for laboratory and research chemistry.
• Educational demonstrations involving metallic powders.
• High-density and specialty industrial filler applications.

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Caution:

Fine metal powders should be handled carefully to minimize airborne dust. Avoid inhalation, unnecessary dust generation, and contact with incompatible materials or ignition sources. Refer to the current SDS for complete handling, storage, personal protection, and disposal information.

Liquid Sodium Silicate NSF Certified (Water Glass) Solution

Liquid Sodium Silicate, also known as Water Glass, is a multi-purpose alkaline sodium silicate solution with a variety of industrial, construction, ceramic, adhesive, and water treatment applications. This NSF grade sodium silicate solution is certified to NSF/ANSI 60 as a drinking water additive, with a maximum use dose of 265 mg/L. It has a SiO₂/Na₂O ratio of 3.20, a density of 41.1° Baume, and total solids of approximately 37.60%.

It is commonly used as a foundry-grade binder, ceramic deflocculant, carton adhesive-grade product, concrete and plaster sealer, and high-temperature bonding agent. It can also be used for surface applications, solid sand molds for metal castings, and wood treatment applications. Note that liquid sodium silicate is strongly alkaline, with a pH of approximately 11.3, and should be handled with proper care.

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Product Specifications

Chemical Name	Sodium Silicate Solution
Synonyms	Water Glass, Sodium Silicate Solution, Soluble Glass
CAS Number	1344-09-8
Chemical Formula	Na2O(SiO2)x · xH2O
Wt. Ratio SiO2/Na2O	3.20
%Na2O	8.96
%SiO2	28.64
Total Solids	37.60%
Density @ 68°F (20°C) °Be'	41.1
Density @ 68°F (20°C) lb/gal	Approx. 11.6
Density @ 68°F (20°C) g/cm3	Approx. 1.38
pH	Approx. 11.3
Viscosity	213 cP at 20°C
Characteristics	Syrupy Liquid
Grade	NSF/ANSI 60 Certified Grade
NSF Certification	Certified to NSF/ANSI 60 as a drinking water additive
Maximum Use Dose	265 mg/L

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Applications and Benefits:

• Certified to NSF/ANSI 60 for drinking water treatment applications, with a maximum use dose of 265 mg/L.
• Used as a foundry-grade binder for instant solid sand molds in metal castings.
• Can be diluted to lower concentrations as required.
• Used in ceramic applications as a deflocculant to help prevent greenware shrinkage.
• Suitable for carton adhesive applications and other bonding uses.
• Can be applied to surfaces to create an instant antique look.
• Used as a sealer for plaster and concrete surfaces.
• Can be used as a wood treatment to improve water resistance and help deter insects.
• Functions as a high-temperature adhesive and bonding agent when applied in a thin layer between surfaces.
• Used in adhesives and binders, agriculture, cements and construction materials, detergents, drilling, geotechnical and mineral processing, manufacture of other chemicals, pulp and paper, textiles, and water treatment.

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Caution:

Liquid sodium silicate is strongly alkaline, with a pH of approximately 11.3. Use care when handling this product and wear gloves and eye protection to help prevent skin and eye irritation or burns. Avoid contact with eyes, skin, and clothing. Use only as directed and determine suitability for the intended application before use.

Miconazole Nitrate Micronized USP-43

Miconazole Nitrate Micronized USP-43 is a pharmaceutical-grade antifungal active ingredient (API) belonging to the imidazole class of antifungal compounds. It is commonly used in topical and mucosal antifungal formulations for pharmaceutical manufacturing, compounding, formulation development, and laboratory applications.

This material conforms to USP-43 specifications and is micronized to provide improved dispersion, enhanced uniformity, and smoother incorporation into topical and semi-solid formulations.

Miconazole Nitrate exhibits broad-spectrum antifungal activity against dermatophytes and yeasts through inhibition of ergosterol biosynthesis, an essential component of fungal cell membranes.

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Key Applications

Pharmaceutical Formulations

1. Topical antifungal creams and lotions
2. Athlete’s foot (tinea pedis) formulations
3. Ringworm (tinea corporis) products
4. Jock itch (tinea cruris) products
5. Vaginal antifungal creams and suppositories
6. Antifungal sprays, powders, and gels

Compounding Pharmacy Use

1. Custom antifungal creams and gels
2. Combination dermatological formulations

Personal Care & Cosmeceutical Applications

1. Medicated skincare products
2. Antimicrobial topical formulations

Veterinary Applications

1. Antifungal formulations for veterinary use

Research & Development

1. Antifungal formulation development
2. Pharmaceutical and academic research

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Technical Information

Miconazole Nitrate inhibits the biosynthesis of ergosterol, an essential component of fungal cell membranes. This disruption compromises membrane integrity and contributes to antifungal activity in topical pharmaceutical systems.

Key Features:

1. USP-43 pharmaceutical grade
2. Micronized particle size for improved dispersion
3. Consistent batch-to-batch quality
4. Suitable for multiple topical dosage forms
5. Broad-spectrum antifungal activity

This product is ideal for:

1. Pharmaceutical manufacturers
2. Contract manufacturing organizations (CMOs/CDMOs)
3. Compounding pharmacies
4. Cosmetic and personal care manufacturers
5. Veterinary product manufacturers
6. Universities and research laboratories
7. Chemical distributors and resellers

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Product Specifications

Product Name	Miconazole Nitrate Micronized USP-43
CAS Number	22832-87-7
EC Number	245-256-6
Grade	USP-43
Chemical Class	Imidazole antifungal
Appearance	White to off-white crystalline powder
Assay	98.0% – 102.0% (USP specification)
Typical Assay	99.85%
Solubility	Slightly soluble in water; soluble in organic solvents such as ethanol, propylene glycol, PEG systems, and DMSO
Molecular Formula	C₁₈H₁₄Cl₄N₂O·HNO₃
Molecular Weight	479.14 g/mol
Particle Size	D90 = 10 µm
Melting Point	Approximately 178–182°C

Quality & Compliance

1. Manufactured in accordance with USP-43 specifications
2. Packaged for pharmaceutical, compounding, and research applications
3. Consistent batch-to-batch quality

Available Documentation:

Certificate of Analysis (CoA)
Safety Data Sheet (SDS)
Technical Data Sheet (TDS)

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Packaging Options

Original material is manufactured in China and supplied in 25 kg fiber drums. Smaller repackaged quantities are available to support research, development, pilot-scale work, and formulation testing.

1oz – $49
1lb – $295
55lb (25 kg Drum) – $4495

Custom packaging and private labeling may be available upon request for research and industrial applications.

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Formulation Considerations

Miconazole Nitrate is commonly incorporated into:

1. Oil-in-water creams
2. Gels and lotions
3. Vaginal formulations
4. Powder sprays and topical systems

Key formulation notes:

1. Often pre-dispersed in propylene glycol or PEG systems
2. Compatible with common emulsifiers and thickening agents
3. Micronized particle size may improve formulation uniformity and dispersion

Why Buy From Chemical Store?

• Reliable supply of pharmaceutical-grade materials
• Flexible packaging for research and development applications
• Technical understanding of formulation applications
• Responsive support for documentation and compliance needs
• Ideal for both established manufacturers and small-scale developers

Related Products

To support antifungal formulation development, consider:

• Carbomers (gel base thickening agents)
• Emulsifiers (cream formulations)
• Propylene glycol (solvent and penetration enhancer)
• Preservatives and stabilizers

Storage & Handling

• Store in a cool, dry, well-ventilated area
• Protect from moisture and direct sunlight
• Keep container tightly closed
• Use appropriate PPE and avoid inhalation of dust

Refer to the SDS for complete safety and handling information.

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Shipping Notice

Small quantities are typically shipped as non-regulated material for domestic ground transportation. Bulk quantities may require additional shipping review depending on destination, carrier requirements, and applicable regulations.

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Regulatory & Usage Notice

This product is intended for:

1. Pharmaceutical manufacturing
2. Compounding applications
3. Research and laboratory use
4. Industrial formulation development

Not intended for direct consumer use or direct human consumption.
Buyers are responsible for ensuring compliance with all applicable local, state, federal, and international regulations regarding use, handling, formulation, labeling, and distribution.

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Disclaimer

The information provided is believed to be accurate and reliable based on available supplier and internal documentation. Users are responsible for determining the suitability of this material for their specific application and for compliance with all applicable regulations.