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

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Other Names Formvar-coated 3mm 200 mesh copper grids
Molecular Weight Variable (polymeric)
Smell Odorless
Storage Store in a dust-free, dry environment at room temperature
Structural Formula [-CH2-CH(OCH3)-CH2O-]n
Refractive Rate Not determined
Poisonous Yes
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Formvar on 3mm 200 Mesh Cu Grids (Pack of 25) Product Specifications

Standard Meets TEM sample preparation standards
Shape Round (3mm diameter) mesh grid
Application Support film for transmission electron microscopy (TEM)
Classification Laboratory consumable
Main Material Formvar (polyvinyl formal) on copper (Cu) mesh grid
Poisonous Yes
Type Copper support grids with Formvar film
Refractive Rate Not determined
Structural Formula [-CH2-CH(OCH3)-CH2O-]n
Storage Store in a dust-free, dry environment at room temperature
Smell Odorless
CAS No 24989-97-3 (Formvar)
Molecular Weight Variable (polymeric)
Usage Microscopy sample preparation
Other Names Formvar-coated 3mm 200 mesh copper grids
Purity High purity copper and Formvar film
Form Solid grid with polymer film
Molecular Formula (C3H6O)n (Formvar)
HS Code 9012 90 00
Grade Analytical/EM grade
Melting Point No distinct melting point, decomposes on heating
Solubility Insoluble in water
Density 8.96 Gram per cubic centimeter(g/cm3)
Chemical Name Polyvinyl formal (Formvar)

Film Thickness Approximately 15-25 nm
Intended Users Researchers, scientists, laboratory professionals
Grid Material High-quality copper
Transparency Electron transparent
Conductivity Excellent (from copper mesh)
Film Type Formvar film coated
Edge Profile Standard rim
Pack Quantity 25 grids per pack
Grid Diameter 3mm
Surface Condition Smooth, continuous support film
Cleanliness Pre-cleaned and ready to use
Shelf Life Stable under proper storage
Mesh Size 200 mesh
Compatible Techniques TEM, EM

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

Main Export Market(s) Australia, South America, Eastern Europe, Western Europe, Middle East, Africa, Central America, Asia, North America
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 copper grids. Nickel and gold grids are also available.

Supplied as 25 grids in a grid box.

Exceptional Support Film Quality

Each grid features a continuous and smooth Formvar film, offering optimal electron transparency for precise TEM imaging. The 15-25 nm thick polymer layer provides stable support for delicate samples, reducing background noise and enhancing contrast during electron microscopy.

Reliable Copper Mesh Construction

Manufactured from high-purity copper, the 200 mesh grids deliver excellent conductivity and durability. This ensures minimal sample drift and superior imaging stability. The standard rim profile is compatible with most TEM holders, and the grids are securely packed in quantities of 25 for convenient storage and handling.

Pre-Cleaned and Laboratory Ready

Our grids are pre-cleaned to eliminate contaminants, allowing immediate use upon opening. Researchers can trust the cleanliness and consistency, making sample preparation more efficient and reliable. Proper storage in a dry, dust-free environment prolongs shelf life and maintains performance.

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

Q: How are Formvar on 3mm 200 Mesh Cu Grids used in the TEM sample preparation process?

A: These grids are mainly used to support specimens for transmission electron microscopy. Samples are deposited onto the Formvar film, which provides a stable, electron-transparent surface suitable for high-resolution imaging.

Q: What are the benefits of using Formvar-coated copper grids for electron microscopy?

A: Formvar-coated copper grids offer smooth support films and excellent conductivity. The electron-transparent Formvar film minimizes sample background and improves image clarity, while the copper mesh ensures robust sample handling and minimal drift.

Q: When should I select a 200 mesh grid with Formvar film for my microscopy application?

A: Choose 200 mesh Formvar-coated grids when you need fine specimen support and optimal electron transparency for TEM analyses, especially with biological or particulate samples requiring minimal interference from the support film.

Q: Where should Formvar on 3mm 200 Mesh Cu Grids be stored for optimal longevity?

A: For best shelf life and cleanliness, store the grids in a dust-free, dry environment at room temperature. Avoid high humidity or contaminated conditions which may compromise film integrity.

Q: What is the process for preparing samples using these grids?

A: Place the specimen on the Formvar film, allow it to adhere, and optionally stain if required. Once adequately prepared, the grid can be inserted into a TEM holder for imaging.

Q: Are these grids suitable for all TEM sample holders and applications?

A: Yes, the standard 3mm diameter and rim design make them compatible with most TEM holders. They are ideal for analytical grade sample preparation in research and laboratory settings.

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