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

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Product Details:

Smell Odorless
HS Code 74199930
Molecular Formula (C2H4O)n, polyvinyl formal
Structural Formula [-CH2CHOH-]n (base structure of polyvinyl alcohol, formal-modified)
Density 1.25 Gram per cubic centimeter(g/cm3)
Melting Point Quick softening above 150C (amorphous transition)
Form Solid grid with polymer film
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Formvar on 3mm H7 Finder Cu Grids (Pack of 25) Product Specifications

Purity Ultra-pure Formvar film
Standard Complies with EM microscopy consumable standards
Refractive Rate 1.49 (Formvar film)
Molecular Weight Variable (polymer)
Type H7 Finder grid, 3mm diameter
Solubility Insoluble in water, soluble in most organic solvents such as chloroform and toluene
Application Supports for TEM specimen preparation, electron microscopy
CAS No 9002-89-5 (Polyvinyl alcohol, parent polymer)
Main Material Copper (Cu) grid, coated with Formvar film
Classification Microscopy sample support grid
Ph Level Neutral (pH 7 in water)
Other Names Formvar-coated copper finder grid
Storage Store in a cool, dry place, protected from dust and static
Shape Circular grid with H7 Mesh Finder pattern
Melting Point Quick softening above 150C (amorphous transition)
Density 1.25 Gram per cubic centimeter(g/cm3)
Structural Formula [-CH2CHOH-]n (base structure of polyvinyl alcohol, formal-modified)
Form Solid grid with polymer film
EINECS No Not applicable (Formvar is a trade name for polyvinyl formal)
Poisonous Yes
Molecular Formula (C2H4O)n, polyvinyl formal
Usage Used as support films for transmission electron microscopy
Smell Odorless
Grade Laboratory/Research Grade
HS Code 74199930
Chemical Name Polyvinyl formal (Formvar)

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

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

Robust Support for TEM Specimen Preparation

With Formvar-coated copper grids, users benefit from a combination of mechanical stability, high conductivity, and low background interference during electron microscopy analysis. The continuous film is optimized to hold delicate specimens securely, making these grids ideal for preparing ultra-thin sections and locating samples with precision through the H7 Finder pattern.

Consistent Quality and Reliable Traceability

Each pack contains 25 grids, clearly traceable with lot numbers for quality assurance. Manufactured from ultra-pure copper and Formvar, the grids are compliant with RoHS and EM microscopy standards. The packaging protects against static and contamination, ensuring the grids arrive in pristine condition and remain reliable throughout their shelf life.

Optimized Handling and Storage Conditions

Formvar on Cu grids is sensitive to environmental factors. To maximize service life, store them in a cool, dry place, protected from dust and static discharge. The anti-static box minimizes contamination risk, preserving grid integrity for up to 1224 months under recommended conditions.

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

Q: How should I handle and store Formvar on 3mm H7 Finder Cu Grids to maintain their quality?

A: Handle grids with clean, anti-static tweezers to avoid direct contact and potential film damage. Store them in their original anti-static container in a cool, dry environment, away from dust and static electricity, to preserve film integrity and prolong shelf life up to 1224 months.

Q: What is the main application of these Formvar-coated copper grids?

A: These grids are primarily used as sample supports for transmission electron microscopy (TEM), providing a stable, low-background platform, facilitating specimen localization through the H7 Finder pattern during imaging and analysis in laboratory or research settings.

Q: When is it suitable to request a different Formvar film thickness?

A: You can request a different film thickness if your experimental requirements call for specific mechanical properties, specimen visibility, or electron transparency. Custom thicknesses may improve sample stability or imaging quality for particular TEM applications.

Q: What benefits does the H7 Finder grid pattern offer for TEM analysis?

A: The H7 Finder pattern serves as a reference landmark for reliable specimen localization, enabling precise re-positioning and tracking of samples during TEM observations, improving workflow accuracy and efficiency in multi-stage experiments.

Q: Where should I dispose of used grids after laboratory use?

A: Dispose of Formvar-coated copper grids as laboratory plastic or copper waste according to local regulations. Detailed guidance is often available in your institutions waste disposal policy, ensuring proper environmental compliance.

Q: Is the Formvar film compatible with most organic solvents and non-toxic for general laboratory use?

A: Yes, Formvar is insoluble in water and soluble in many organic solvents, such as chloroform and toluene. It is non-toxic under standard laboratory conditions, making it safe for routine TEM sample preparation.

Q: What is the process for verifying grid quality and lot traceability?

A: Each grid pack carries a lot number for traceability. This identifier enables you to confirm quality, origin, and compliance, supporting consistent results and facilitating troubleshooting or repeat purchasing in regulated laboratory environments.

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