Our problem is your savings. We have a batch of 1 oz clear boston round bottles that has a frosted look to them. The following challenges cause this. This issue is not common but does happen from time to time. We are offering a reduced price on this item to make up for the problem. Please find the following information as an explanation.
An explanation for light white powder (like frost or crystallization) appearing on the surface of the clear molded glass container, USP type III
There is light white powder-like frost or crystallization on the surface of CLEAR TYPE III molded glass container, in the glass industry, we call it 'glass spit alkali, this phenomenon occurs mainly in the hot summer months, especially in the type III glass, because the alkali (Na+, K+) content of type III glass bottle is relatively high.
The following is our type III amber glass bottles composition, expressed as oxide percentage:
The above element is safe for health, we also made the test for the release of heavy metal, we hereby certify that the release of Arsenic (including heavy metal lead) from the glass containers is in accordance with the specification of USP 38, EP8.0 (limit is less than 0.1ppm) and Chinese SFDA norms.
What's root-cause of light white powder-like frost or crystallization on the surface of the glass container, we hereby make the following explanation. Because,
1. The reaction between the glass surface and aqueous phase (water or water vapor) involves ion exchange between hydrogen ions and alkaline ions in the glass and diffusion of water into the glass. This results in hydration of the glass surface and an alkali depleted, due to the air with carbon dioxide, the carbon dioxide reacts with water, the bicarbonate ions catch sodium ions, with the passage of time, forms the sodium carbonate crystals with water or without water.
2. The reaction between glass + water + CO2
H+ + Na+SiO-(glass) => SiOH + Na+
H2O + Na+SiO-(glass) => SiOH + Na+ + H+
H2O + CO2 <=> 2H+ + CO32-
2Na+ + CO32- => Na2CO3 (white powder)
Na2CO3 + 10H2O <=> Na2CO3 *10H2O (white powder)
SiO2 + 2H2O <=> H4SiO4
H4SiO4 + OH- <=> H3SIO4- + H2O
H2O + Si-O-Si <=> 2SiOH
2SiOH <=> Si- O-Si +H
3. So the light white powder-like frost or crystallization is the mixture of Na2CO3, H2O, etc. This mixture is easily soluble in the water, these substances are harmless to the human body.
Our various V#’s are to differentiate between our many suppliers. The only differences you will see in different V#’s will be slight cosmetic changes, sometimes unnoticeable, as well as slight differences in shape/sizing (in regards to bottles). However, all products of the same type will function the same. If you have any other questions,just let us know!
How do I choose the correct closure size?
Closure sizes are expressed using two different numbers.
The second number is the Glass Packaging Institutes (GPI) thread finish and refers to the height of the cap and the style of the threads on the closure or bottle.
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Proudly Packed in the USA
We take pride in our packaging. Our items are proudly packed in the USA by everyday Americans. We are providing a higher quality package while serving our community, neighbors, and friends! We have found that although the cost of packaging the items overseas is more affordable, it negatively affects the quality and our customer's satisfaction.
Quality Control Assurance
We want to provide a consistent product to our customers. We have found that keeping our quality control in-house accomplishes this goal. We purchase items in bulk and then inspect for any manufacturing issues before carefully packaging each item. This allows us to provide a better service and product to our customers.
Unfortunately, fragile items are sometimes damaged in shipping. If your product(s) arrive broken, please count the number of broken bottles, take pictures of the condition of the packaging and the broken items, and notify us immediately so we can promptly file a claim with the shipper. Please do not discard the packaging or broken items as the shipper may want to inspect the damage. Once verification of the damage is complete, we are happy to replace the broken items.