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

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Product Details:

Poisonous Yes
Smell Odorless (Formvar coat)
Purity High purity for analytical/EM use
Molecular Weight Polymeric (not defined), Nickel: 58.69 g/mol
Solubility Insoluble in water; soluble in some organic solvents (e.g., chloroform) (Formvar film)
Storage Store in cool, dry environment; avoid contamination
Form Solid grid with thin polymer film coat
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Formvar on 3mm H7 Finder Ni Grids (Pack of 25) Product Specifications

Type Pre-coated EM grids
Smell Odorless (Formvar coat)
Standard EM laboratory quality
Poisonous Yes
Grade EM/Analytical grade
CAS No Formvar: 9002-89-5 (Polyvinyl alcohol base), Nickel: 7440-02-0
Classification Laboratory/Research Supplies
Form Solid grid with thin polymer film coat
Storage Store in cool, dry environment; avoid contamination
Molecular Weight Polymeric (not defined), Nickel: 58.69 g/mol
Purity High purity for analytical/EM use
Solubility Insoluble in water; soluble in some organic solvents (e.g., chloroform) (Formvar film)
Chemical Name Polyvinyl formal (Formvar), Nickel (Finder grid)
Ph Level Neutral (non-reactive polymer / metal)
Other Names PVF-coated Ni Finder grids
Application Supports for electron microscopy (EM) specimen preparation
Melting Point Formvar: 170C - 177C (glass transition)
Structural Formula Polymer (repeating acetal and vinyl units)
Main Material Nickel (grid); Formvar (coating film)
Refractive Rate Not specified (not critical for usage)
Boiling point Not applicable (thermoplastic polymer coating on metal)
EINECS No Non-applicable (Formvar is a trade name)
Usage Used as a support substrate for viewing ultra-thin sections and particles in Transmission Electron Microscopy (TEM)
Shape Circular (Grid: 3mm diameter)
Molecular Formula Polymeric (Formvar: (C2H4O)n(C3H4O2)m(C3H3O)n), Nickel: Ni
Density 8.9 Gram per cubic centimeter(g/cm3)
HS Code 70179090

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

Main Export Market(s) Western Europe, Australia, Eastern Europe, Middle East, Central America, South America, Asia, North America, Africa
Main Domestic Market All India

Product Description

Formvarcoated 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.

Designed for Precision TEM Research

These Formvar-coated H7 Finder grids are purpose-built for supporting ultra-thin specimens in Transmission Electron Microscopy. The indexed finder pattern enables precise localization and documentation of your samples. With robust nickel construction and an analytical grade Formvar film, the grids deliver both stable electron conductivity and optimal transparency required for high-resolution TEM work.

Clean, Reliable, and Compatible

Each grid is pre-coated for convenience, ensuring a smooth and spotless surface ready for EM use. Compatible with standard 3 mm specimen holders, these grids streamline your workflow, whether in academic, analytical, or industrial research settings. Their pack-of-25 format makes them a consistent and economical choice for demanding laboratories.

Quality and Stability Assured

With high-purity materials and precise manufacturing, these grids offer reliable strength for supporting delicate specimen sections. They are odorless, non-reactive, and maintain their quality indefinitely when properly stored. Each batch meets EM laboratory standards, ensuring high-performance for advanced microscopy applications.

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

Q: How should Formvar on 3mm H7 Finder Ni Grids be handled during specimen preparation?

A: Handle the grids using clean, anti-static tweezers, and avoid touching the Formvar-coated surface directly. This prevents contamination and preserves the integrity of the electron transparent support film.

Q: What benefits do the H7 Finder (indexed) grids provide for TEM imaging?

A: The alphanumeric pattern on H7 Finder grids allows for easy and precise localization, tracking, and documentation of specimens during Transmission Electron Microscopy, making comparative or repeated analysis more efficient.

Q: When is it necessary to use Formvar-coated Ni grids in microscopy applications?

A: Use Formvar-coated nickel grids when preparing ultra-thin sections, supporting nanoparticles, or examining delicate samples that require a transparent yet stable support substrate for electron beam transmission in TEM.

Q: Where should these pre-coated EM grids be stored for optimal longevity?

A: Store the grids in a cool, dry environment and keep them free from dust and contaminants. Proper storage ensures they remain stable and useful indefinitely.

Q: What is the process for preparing a specimen on these Formvar-coated Ni grids?

A: Place the ultra-thin specimen onto the coated surface using appropriate tools and techniques, allow it to adhere, and ensure it is well-positioned over the Finder pattern for reference during imaging.

Q: Can these grids be used with any TEM instrument?

A: Yes, these grids are designed in a 3 mm diameter format, making them compatible with all standard TEM specimen holders commonly used in laboratories.

Q: What are the specific advantages of nickel grids with Formvar over other support materials?

A: Nickel grids provide high electrical conductivity and are resistant to corrosion, while the Formvar coating offers excellent electron transparency and chemical stability, ensuring minimal interference and clear imaging for electron microscopy.

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