A Quick Guide to Glass Types and Other Specifications for Chemical Use

Glass is indeed a popular packaging material in the industry and companies rely on it heavily for chemical uses.



This is why it’s important to understand the varieties available and the various uses they offer.
While some glass containers are required to have high thermal shock resistance, others need to have high hydrolytic resistance.
The expectations from packaging vary with a change in the chemical products that need to be packaged in them.

Typical Composition

Following is a table that briefly sums up the typical composition of glass in each type.


Type III
Type II
Type I

Drinkable
Injectable
Injectable

Silicium sio2
70 %
70 %
65-72 %
Soda  Na2O
15 %
15 %
5-9 %
Limestone cao
10 %
10 %
0-4 %
Borax B2O3
-

14 %
Overige
5%
5%
8-13 %
Amber glass: The addition of iron oxide (Fe2O3) enables glass to get its distinct color.

Classification of Glass Chemical Containers

You read above that some glass types have high hydrolytic resistance. That begs the question: what is hydrolytic resistance?
It refers to the ability of glass containers to resist the release of soluble mineral substances upon contact with water. The only way to measure the hydrolytic resistance of glass is through the titration of released alkalis.
After conducting these tests, the three types of glass can be ranked as such:
· Type I: high hydrolytic resistance because of the chemical composition of glass.
· Type II: high hydrolytic resistance because of the treatment of the inner surface.
· Type III: moderate hydrolytic resistance

Characteristics of Glass


· Resistant to thermal shock
· Resistant to heat
· Impermeable to gas
· Easily sterilized and depyrogenated 
· Transparent or tinted
· Dimensionally stable
· Suitable for pharmaceutical use
· Chemically inert
· Hydrolytic resistance

Surface Treatments

Glass surfaces can be treated for better performance in pharmaceutical use or for packaging strong chemicals. The exterior surface can be treated to reduce abrasion and friction. Metallic oxide deposition and the application of a layer of lubricant helps achieve this.

The interior surface can be improved for better hydrolytic resistance. This can be done using interdiffusion of sodium ions and reaction with sulfate to form sodium sulfate.
The deposit left behind after the treatment must be washed out before packaging products in the container.

Are you looking for glass containers that are safe for chemical use?

Premium Vials offers a wide collection of wholesale packaging solutions such as glass vial bottles and pump bottles on discounted prices for packaging chemical products. 

Comments

Post a Comment

Popular posts from this blog

Coca Cola Goes Sustainable With Plastic Packaging Waste

Image
The beverage company has recently trialed recycled marine plastic packaging waste, proving that plastic has an important role to play in a sustainable society.    As businesses around the world prepare to dump plastic in favor of sustainable packaging solutions, Coca Cola Co. is carving its own path to innovation. The beverage manufacturer has produced and released 300 bottles, made with 25% recycled PET plastic plucked and fished from waterways and beaches. The company partnered with Ioniqa Technologies, Indorama Ventures and Circular Seas for the project. Circular Seas helped with the cleanup and collection of the plastic waste, Ioniqa provided depolymerization technology for recycling, while Indorama Ventures supplied resin for manufacturing.     Bruno Van Gompel, Technical and Supply Chain Director for Coca Cola across Western Europe, said : “This is just a proof of concept of what can be achieved with enhanced recycling technology and how plastic can be integrated i
Read more

Pharmaceutical Packaging Trends in 2019

Image
How you apply design and graphics on your products is crucial for brand recognition. Packaging is a customer’s very first interaction with your product—they see it, pick it, judge it, and finally make the call to purchase it. Therefore, business owners have to ensure that they follow the latest packaging trends. Minimalist Packaging Brightness may not be everyone’s cup of tea. However, over the past few years, minimalist patterns have gained a new-found success among various sectors. If you are unwilling to take risks, then minimalist design is a safer bet. Even if you are not playing it safe, then this design can help you to highlight the true essence of your brand. Minimalist packaging can help your product become more prominent. From the consumer perspective, a minimalist packaging can make the product stand out from all the shiny and flashy packaging designs. Sustainable Packaging Things are a lot different now as opposed to 10 or 20 years ago. Organizations have become
Read more

Advantages of Screen Printing Glass Bottles vs. Paper Labels

Image
In the year 2020, let’s make your brand packaging go paperless. All the emotions you want to put into your brand message can still be conveyed without using any sort of paper-based labels.  Did you know around 26% of the total waste in our landfill sites  comprises of paper? As a brand that aspires to be socially responsible, it’s your job to make sure you’re not contributing to any of that environmental damage. A more plausible alternative that we suggest is screen printing. Let’s take a look at some other benefits: Flexible design options From a branding perspective, you can use the entire bottle as a canvas and play to the max of your designing capabilities. Whether you’ve opted for a bold design or a classic template, you can use as much space as you want to put up the best visual expression. On the flip side, if you’re using a paper label, your design space is limited to the shape and size of the label or the bottle. Screen printing even allows you to put up a tiny logo
Read more