Formvar on 3mm H7 Finder Au Grids (Pack of 25)

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Product Details:

Melting Point Around 120C to 140C (Formvar resin)
Storage Store at room temperature, protected from moisture and dust
Purity 99.9% (Gold grid)
Form Thin film on grid
Smell Odorless
Boiling point Not applicable (polymer)
Solubility Insoluble in water, soluble in organic solvents such as chloroform and toluene
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Formvar on 3mm H7 Finder Au Grids (Pack of 25) Product Specifications

Other Names Polyvinyl formal support film on Au grid
CAS No 9002-89-5 (Formvar)
Shape Circular grid
Grade High purity scientific grade
Usage Supporting specimens for microscopic imaging and analysis
Structural Formula [-CH2-CH(OCH3)-]_n
HS Code 70179000
Molecular Weight Variable (polymer; gold grid = 196.97 g/mol atom)
Density 1.20 Gram per cubic centimeter(g/cm3)
Main Material Formvar (polyvinyl formal) on Gold (Au) grid
Poisonous Yes
Molecular Formula (C2H3CHO)n (Formvar) + Au
Smell Odorless
Classification Polymeric film
Melting Point Around 120C to 140C (Formvar resin)
Storage Store at room temperature, protected from moisture and dust
Form Thin film on grid
Application Transmission Electron Microscopy (TEM) specimen support film
Purity 99.9% (Gold grid)
Standard EM grid quality
Solubility Insoluble in water, soluble in organic solvents such as chloroform and toluene
Ph Level Neutral
Chemical Name Polyvinyl formal (Formvar) on Gold Grid
Boiling point Not applicable (polymer)
Type 3mm H7 Finder Au Grid with Formvar film

Compatibility Compatible with most TEM holders and specimen mounting
Appearance Gold-colored finder grid with translucent Formvar film
Pack Size Pack of 25 grids
Made For Electron microscopy laboratories and research institutions
Grid Thickness Approximately 25 m (gold grid)
Surface Type One side Formvar-coated
Support Film Thickness Typically 10-30 nm (Formvar film)
Handling Handle with fine forceps to avoid damage
Grid Size 3 mm diameter
Finder Configuration H7 finder pattern for specimen localization
Mesh Count Finder grid (no mesh count)
Shelf Life At least 2 years under appropriate conditions

Formvar on 3mm H7 Finder Au Grids (Pack of 25) Trade Information

Payment Terms Cheque, Telegraphic Transfer (T/T), Paypal, Cash in Advance (CID)
Main Domestic Market All India

Product Description

Formvar coated grids without a carbon layer are suitable for TEM applications up to 100kV. The films are available on grids made of copper, nickel or gold.

Supplied as 25 grids in a grid box.

Gold

Formvar support films can be applied to other grid sizes, material or type. Further details available on request.

High-Precision H7 Finder Design

The H7 finder pattern allows researchers to efficiently locate and relocate specific specimen regions under the electron microscope. This significantly enhances workflow efficiency, making targeted imaging and repeated analysis straightforward.

Robust and Transparent Formvar Support

The one-sided Formvar coating, with a film thickness averaging between 10-30 nm, offers an optimal balance of mechanical strength and electron transparency. This provides dependable support for delicate specimens while maintaining imaging clarity.

Engineered for TEM Compatibility

With a standard 3 mm circular diameter and sturdy gold grid construction, these grids integrate seamlessly with the majority of specimen holders utilized in transmission electron microscopes. The gold material ensures 99.9% purity for reliable scientific analysis.

FAQs of Formvar on 3mm H7 Finder Au Grids (Pack of 25):

Q: How should the Formvar on 3mm H7 Finder Au Grids be handled to prevent damage?

A: Handle these grids only with fine forceps and avoid direct contact with the Formvar film to prevent tears or contamination. Always work in a clean, dust-free environment for optimal preservation.

Q: What are the main benefits of using the H7 finder pattern gold grids in TEM analysis?

A: The H7 finder pattern enables researchers to easily localize and revisit specific specimen areas, improving accuracy and efficiency in imaging sessions. The gold grid also provides high purity and chemical stability.

Q: When are these grids typically used during specimen preparation?

A: These grids are ideal for supporting samples during the mounting and analysis phases of transmission electron microscopy, especially when precise localization or repeated imaging of specific regions is required.

Q: Where should the Formvar-coated finder grids be stored for best shelf life?

A: Store grids at room temperature, protected from moisture and dust, in their original packaging. Under such conditions, they remain usable for at least 2 years.

Q: What is the process for mounting a specimen onto the Formvar-coated finder grid?

A: Place the specimen onto the Formvar side of the grid using fine forceps or a micromanipulator. If embedding or staining is necessary, ensure all solvents used are compatible with Formvar to prevent film dissolution.

Q: How are these grids compatible with typical TEM holders?

A: The 3 mm circular size and standard thickness ensure compatibility with most TEM specimen holders and mounting stages, allowing quick integration into existing workflows.

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