Formvar on 3mm 100 Mesh Ni Grids (Pack of 25)

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Melting Point Fastens onto grid at approx. 180C
Storage Store in a dry, dust-free container at room temperature
Poisonous Yes
Purity High purity nickel grid, ultra-clean Formvar film
HS Code 70179090
Structural Formula Polyvinyl formal polymer structure for Formvar
Other Names Formvar-coated Nickel grid
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Formvar on 3mm 100 Mesh Ni Grids (Pack of 25) Product Specifications

Application Support film for Transmission Electron Microscopy (TEM) specimen preparation
Density 8.90 Gram per cubic centimeter(g/cm3)
Other Names Formvar-coated Nickel grid
Chemical Name Polyvinyl Formal (Formvar) on Nickel grid
Structural Formula Polyvinyl formal polymer structure for Formvar
HS Code 70179090
Poisonous Yes
Storage Store in a dry, dust-free container at room temperature
Melting Point Fastens onto grid at approx. 180C
Purity High purity nickel grid, ultra-clean Formvar film
Grade Laboratory/Research grade
Ph Level Neutral (Formvar) / Not applicable for grid
Smell Odorless
Main Material Nickel (Ni) grid with Formvar film coating
Usage Holds ultra-thin sections or particles for electron microscopy imaging
Classification Microscopy grid, Consumable
Standard Meets international TEM grid specifications
Molecular Weight Formvar: Variable / Nickel: 58.69 g/mol
CAS No 9002-89-5 (Formvar polymer) / 7440-02-0 (Nickel)
Form Solid, mesh grid with film
Solubility Insoluble in water, soluble in organic solvents like chloroform and acetone
EINECS No Not applicable for grid product
Molecular Formula Formvar: (C2H4O)n / Nickel: Ni
Shape Circular grid with square mesh openings
Type Pre-coated TEM grids

Compatible Techniques TEM, electron diffraction, particle analysis
Shelf Life Stable for several years if properly stored
Mesh Size 100 mesh
Support Single-sided Formvar support film
Film Thickness Typically 10-30 nm Formvar layer
Packaging Individual grid storage box for contamination protection
Resistivity Nickel grid exhibits high electrical conductivity
Surface Finish Ultra-clean, pre-treated for hydrophilicity
Grid Metal Purity >99.9% Nickel
Handling Instructions Use forceps; avoid touching film with fingers
Grid Diameter 3 mm
Pack Size Pack of 25 grids
RoHS Compliance Yes

Formvar on 3mm 100 Mesh Ni 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.

Nickel

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

Ultra-Clean, High-Purity Nickel Mesh

These grids are manufactured using nickel of greater than 99.9% purity, providing robust electrical conductivity and minimal background signal. The ultra-clean, pre-treated surfaces enhance hydrophilicity, allowing superior sample adherence and improved imaging results. Each grid is circular, 3 mm in diameter, and features square mesh openings, ensuring uniform support for electron microscopy specimens.

Pre-Coated Formvar Film for Optimal Support

Each nickel grid is coated with a single-sided Formvar support film with a thickness of 1030 nm. Formvar (polyvinyl formal) offers stable mechanical support and is chemically inert, suitable for handling ultra-thin sections or particle suspensions. This support is ideal for transmission electron microscopy (TEM), electron diffraction, and related particle analysis due to its consistent film quality and minimal contamination.

Secure Packaging and Long-Term Stability

Grids are individually stored in protective boxes to prevent contamination and mechanical damage. With proper storage in dry, dust-free containers at room temperature, these grids remain stable and ready for use for several years. Their solid, odorless Formvar-coated structure meets international TEM grid standards and ensures safe handling and transport for research applications.

FAQs of Formvar on 3mm 100 Mesh Ni Grids (Pack of 25):

Q: How should Formvar on 3mm 100 Mesh Nickel Grids be handled during specimen preparation?

A: Use forceps to handle these grids at all times, and avoid touching the Formvar film directly with your fingers. The ultra-thin film is sensitive to oils and moisture, which may compromise imaging quality. Store unused grids in their original protective boxes to maintain cleanliness.

Q: What are the main benefits of using Formvar-coated nickel grids for TEM?

A: These grids provide a combination of high-purity nickel for conductivity and a stable Formvar layer for mechanical support. The hydrophilic, ultra-clean finish enhances sample adherence, resulting in clearer TEM images, while the consistent mesh size supports uniform sample distribution.

Q: Where can these grids be used, and for what applications?

A: Formvar-coated nickel grids are suitable for use in transmission electron microscopy (TEM), electron diffraction, and particle analysis. They are ideal for preparing specimens from biological, materials science, and nanotechnology research in laboratory settings across the United Kingdom and globally.

Q: When is it appropriate to replace the grids or the Formvar film?

A: You should replace grids if the Formvar film is visibly damaged, torn, or contaminated, or if structural integrity is compromised during handling or imaging. Under proper storage conditions, unused grids are stable for several years, making regular replacement unnecessary unless compromised.

Q: What process is involved in specimen preparation using these grids?

A: Specimens are placed onto the Formvar film using micropipettes or grids are dipped in particle suspensions. The hydrophilic film facilitates even distribution. Once specimens are secured and dried, grids are loaded into the TEM for imaging and analysis.

Q: Is there any chemical reactivity or toxicity associated with these grids?

A: The nickel grid with Formvar film is non-toxic under normal laboratory conditions, and both components are chemically stable. The Formvar film is insoluble in water but can be dissolved in organic solvents like chloroform or acetone when required for specific analytical techniques.

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