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Questions tagged [glass]

This tag is for questions relating to glass materials and properties. DO NOT use this tag for questions about glassware.

2
votes
1answer
165 views

How does lime prevent soda lime glass from dissolving in water?

How does lime addition as an ingredient prevent soda lime glass from dissolving in water? Does it form calcium silicate in the process of melting?
1
vote
0answers
36 views

Copper Mirror Reaction

I would like to create a copper mirror on a plate of sandblasted glass. I know that a reaction exists: $$\ce{CuSO4 + N2H2 -> Cu + N2 + H2SO4}$$ I know that such a plate of copper is very weak. ...
4
votes
2answers
343 views

Benefits of a Buchner funnel w/ a fritted disc instead of Quantitative Filter Paper Circles

I was wondering if someone could enlighten me on some example us cases where one would be better of using a Buchner funnel with a fritted disc (example), as opposed to a Buchner "style" filter (...
11
votes
1answer
172 views

Why does automotive glass shatter into tiny pieces but glass used in our houses into shards?

Image Source : Bigstockphoto Image source : pinterest The first picture depicts the glass that is found from an accident site, while the second picture depicts the glass that we use in our home. ...
1
vote
1answer
113 views

Dropping Borosilicate glass mug

I recently got a glass tea mug. It's has double wall construction with a vacuum insulation (advertised as such). I noticed on the label, it specifically mentioned it's made of borosilicate glass, and ...
0
votes
1answer
2k views

Why is xenon hexafluoride not stored in glass?

Why is $\ce{XeF_6}$ not stored in glass containers? Isn't the reason glass is used for most acids is that it is non-reactive?
4
votes
1answer
96 views

What home products are reactive with glass?

Glass seems to be one of the most stable solid substances - which chemicals, particularly home products that react with glass?
5
votes
2answers
1k views

What is the meaning of a decimal in a subscript in a chemical formulas? [duplicate]

What is the meaning of a decimal in a subscript in a chemical formulas? I came across the fractional subscripts in a publication,[1] for example: We introduce oxygen into a ferromagnetic metallic ...
2
votes
2answers
901 views

Does crystalline glass exist?

As far as I know, glass is a non-crystalline amorphous solid. Does glass exist in crystalline forms? Or is it the definition of glass that it's non-crystalline, in which case my question is based off ...
1
vote
1answer
141 views

Why can't two Silicon tetraoxide tetrahedrons share an edge or a face?

Our teacher told us about structural types of silicate minerals (neosilicate, sorosilicate, cyclosilicates ...) saying that those tetrahedrons can only share one corner (oxygen), but he didn't give us ...
10
votes
1answer
13k views

How does HF dissolve glass?

By what mechanism does HF proceed in dissolving glass? Why is it the only acid that has this capability? Is it because of the small size and high electronegativity of fluorine?
2
votes
0answers
157 views

Hexafluorosilicid acid attacks glass?

When HF meets glass, Hexafluorosilic acid is formed (assuming some water is present). It appears that Hexafluorosilic acid and further attack glass? How is this so, considering that all F atoms are "...
3
votes
1answer
303 views

Devitrification vs glass transition temperature

This graph comes from a so-called "differential thermal analysis". It is studying the effects of temperature on glass. I don't understand what the difference between "glass transition" and "...
2
votes
1answer
4k views

Prevent molten glass from cracking when cooling down

My mother works in a ceramics workshop. Besides giving lessons she creates various ceramic dishes, cups and plates. She often uses the effect of colored glass melting in the product and then leaving ...