Formvar on 3mm 200 Mesh Au Grids (Pack of 25)

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Product Details:

Structural Formula [-CH2-CH(OCH2O)n-]n (repeating units)
Solubility Insoluble in water, soluble in organic solvents like phenol and cresol
Refractive Rate 1.497 (Formvar film)
Density 1.25 Gram per cubic centimeter(g/cm3)
Smell Odorless
Melting Point 188C 203C (Formvar polymer)
Other Names Formvar film, Polyvinyl formal resin
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Formvar on 3mm 200 Mesh Au Grids (Pack of 25) Product Specifications

Structural Formula [-CH2-CH(OCH2O)n-]n (repeating units)
Application Electron microscopy specimen support
Melting Point 188C 203C (Formvar polymer)
Density 1.25 Gram per cubic centimeter(g/cm3)
Smell Odorless
Refractive Rate 1.497 (Formvar film)
Solubility Insoluble in water, soluble in organic solvents like phenol and cresol
CAS No 9002-89-5 (Formvar)
HS Code 7007.29.00
Purity High (suitable for EM sample prep)
Poisonous Yes
Other Names Formvar film, Polyvinyl formal resin
Chemical Name Polyvinyl formal
Standard Complies with electron microscopy standards
Type Support grid
Usage Sample preparation for TEM (Transmission Electron Microscopy)
Classification Synthetic polymer
Grade Electron Microscopy Grade
Main Material Formvar (polyvinyl formal resin) coated on gold (Au) mesh grid
Molecular Weight Varies, approx. 44,000 - 50,000 g/mol
Form Thin film coated grid
Molecular Formula (C2H4O)n (polyvinyl formal)
Boiling point Not applicable (polymer)
Ph Level Neutral
Shape Circular mesh grid
Storage Store at room temperature, protected from dust, moisture, and direct sunlight

Grid Diameter 3 mm
Product Code 3mm-200Au-Formvar
Grid Material Gold (Au)
Handling Precautions Handle with anti-static tweezers, avoid touching film
Shelf Life 2 years under appropriate storage conditions
Compatibility Compatible with high-resolution TEM analysis
Film Thickness Approximately 10-25 nm
Grid Style Flat, standard
Mesh Size 200 mesh
Pack Size Pack of 25 grids
Surface Finish Uniform Formvar film
Film Transparency High electron transparency

Formvar on 3mm 200 Mesh Au Grids (Pack of 25) Trade Information

Payment Terms Telegraphic Transfer (T/T), Paypal, Cash in Advance (CID), Cheque
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.

Exceptional Support for TEM Analysis

These Formvar-coated gold grids are engineered for maximum reliability and transparency, allowing for exceptional imaging in high-resolution TEM applications. The flat, circular mesh design ensures uniform sample coverage while the Formvar film provides a stable and inert support for delicate specimens. Researchers benefit from consistency and reduced background interference, enhancing observation detail.

Safe Handling and Storage Recommendations

To maintain structural integrity and surface quality, grids must be handled with anti-static tweezers, avoiding direct contact with the Formvar film. Optimal shelf life of two years is achieved by storing grids at room temperature, protected from dust, moisture, and sunlight. These precautions prevent contamination and preserve film transparency, ensuring dependable results during TEM analysis.

FAQs of Formvar on 3mm 200 Mesh Au Grids (Pack of 25):

Q: How should Formvar on 3mm 200 Mesh Au Grids be handled to prevent damage?

A: It is essential to use anti-static tweezers and avoid touching the Formvar film to prevent tearing or contamination. Minimize direct contact and keep grids on clean surfaces until use.

Q: What is the typical application for these Formvar-coated gold grids?

A: These grids are specifically designed as support structures for electron microscopy specimen preparation, particularly for transmission electron microscopy (TEM) studies that require high electron transparency.

Q: When will the Formvar film lose its optimal transparency or support properties?

A: If not properly stored or if the grids are exposed to dust, moisture, or direct sunlight, the Formvar film may degrade over time. Under recommended conditions, the grids retain optimal transparency for up to two years.

Q: Where can these grids be used effectively in research or industry?

A: They are suitable for laboratories and facilities engaged in electron microscopy, especially TEM, in fields such as materials science, life sciences, and nanotechnology across academia and industry.

Q: What benefit does the gold (Au) grid material offer over other metals?

A: Gold grids are highly inert, reducing chemical interactions and background noise during imaging, which improves the accuracy of specimen observation and provides superior corrosion resistance.

Q: What process is involved in preparing these grids for sample application?

A: Grids should be gently positioned with anti-static tweezers, optionally glow-discharged for improved wetting, and samples carefully deposited onto the Formvar film before imaging.

Q: Can Formvar grids be cleaned or regenerated for reuse?

A: Formvar films are delicate and typically designed for single-use applications. Attempts to clean or reuse may compromise film integrity and are not recommended for high-resolution EM work.

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