Questions tagged [carbon-family]
For questions about the carbon family (group 14) elements, their compounds, and their trends in various physical and chemical properties. For questions specifically about carbon or its allotropes only, prefer using tag [carbon-allotropes] instead.
21
questions
1
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2answers
109 views
Does H3CO3+ ion exist and what is its structure? [closed]
Why doesn't $\ce{H3CO3+}$ ion exist and why doesn't the carbonyl group in carbonic acid $(\ce{H2CO3})$ seem reactive?
-4
votes
1answer
47 views
Best method to increase the chain length of allyl to butane-1,2-diol [closed]
Best method to increase the carbon chain length of allyl. and also add 2 OH carbon after reducing double bond give (S)-4-R-butane-1,2-diol and (R)-4-R-butane-1,2-diol .
R= Any Ak, Cb, Cy, Hy
-1
votes
1answer
26 views
Is it possible to convert carbon soot/ black carbon in mg to CO2-equivalent? If so, how?
Since global warming is expressed in terms of carbon emissions or CO2 equivalent, can the short lived carbon soot/ black carbon that is produced from incomplete combustion be expressed in terms of CO2 ...
3
votes
0answers
55 views
Electrical and thermal conductivity of graphite
I was reading about carbon family where it was mentioned that electrical conductivity of graphite increases with temperature while thermal conductivity decreases.
However, I could not find a suitable ...
0
votes
1answer
105 views
Why does bubbling carbon dioxide through calcium hydroxide result in a precipitate?
Why does the addition of carbon dioxide to calcium hydroxide create the precipitate calcium carbonate? What happens chemically for such a molecule to form? How exactly do their interactions come into ...
4
votes
0answers
28 views
Has there been any independent verification of the results from this Chinese nanotube study?
Watts up referred to the South China Morning Post in reporting that a Tsinghua University team led by Wei Fei claimed in 2018 to have manufactured carbon nanotube fibre has tensile strength of 80 ...
1
vote
1answer
38 views
What molecules are produced in carbon arc lamp and how do they produce light?
I am curious about the chemistry of the arc lamp (an indirectly for the incandescent bulbs) thus I would like to ask the following.
It is a common understanding that the electrons pushed inside an ...
-1
votes
1answer
248 views
Which is more metallic: boron or silicon?
I read somewhere that boron is more metallic. Is it correct? If so, can you please elaborate?
The reason why I'm confused is because 2 factors come into play here:
When you move towards right, ...
0
votes
1answer
41 views
Simple tests for presence of CO₂
Am aware that one method for testing for the presence of $\ce{CO2}$ is passing the gas through limewater, with it going cloudy if positive.
Are there any other convenient methods?
2
votes
1answer
301 views
Do all polymers contain either carbon or silicon?
Is either carbon or silicon present in every known polymer?
If not, is there a small group of elements that, between them, are present in every known polymer, or can polymers be based on a lot of ...
1
vote
0answers
44 views
Raman Spectrum of Graphene
I recently took a raman spectrum for a sample of graphene-pla. The result had the characteristic G and D bands associated with Graphene, but not the 2D. But there is a broad peak at around 3100, which ...
0
votes
1answer
28 views
What does 'a' stand for in 'a-C' according to research paper lingo?
I came across this paper but I cannot figure out what is a-C as it is not defined. The C here is obviously Carbon. Regarding 'a' prefix My best guess is that it stands for amorphous. Is this correct?
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votes
1answer
40 views
Carbon emission in absence of oxygen [closed]
When wood is pyrolysed in absence of air is $\ce{CO2}$ emitted.
If yes why is it not combustible?
2
votes
0answers
10 views
Reactants in high temperature chemical vapour deposition
I'm setting up a high-temperature electrolysis rig for the purpose of chemical vapour distribution.
The molten carbonate (750 degrees Celsius) will be lithium carbonate. The cathode will be ...
-1
votes
1answer
238 views
Carbon chains isomers, why is 1-methyl-hexane not a thing? [duplicate]
As title reads, why shouldn't 1-methyl-hexane work but 2-methyl-hexane and 3-methyl-hexane does?
2
votes
1answer
97 views
how to manufacture PTC ink
I am trying to create a PTC ink similar to Henkel ECI8120 , I researched PTC rubber and found that it was Polydimethylsiloxane (PDMS) loaded carbon nanoparticles, I was wondering if anyone here has ...
-1
votes
1answer
61 views
Help with Carbon Fibre
I'm having trouble finding articles about carbon fibre that don't contradict other articles. I just have a few questions about the atomic structure and the intermolecular and intramolecular forces.
...
10
votes
0answers
130 views
Does this binary compound of C and N - isoelectronic with carbon suboxide - exist?
I am a mathematician not a chemist, so my questions are naive and rather combinatorial. I am intrigued by the possibility of the following compound:
$$\ce{N- = N+ = C = N+ = N-}$$
which ought to ...
3
votes
1answer
117 views
I have an idea through utilizing soda lime or other basic substances to help solve climate change
I have an idea through utilizing soda lime or other basic substances to help solve climate change. I want to see if there are some possible errors or other negative implication that I am disregarding.
...
11
votes
1answer
10k views
Why CCl4 does not dissolve in water while SiCl4 does?
Why $\ce{CCl4}$ does not dissolve in water while $\ce{SiCl4}$ does?
Does it have to do with d-orbitals? If yes, then how are they related?
1
vote
2answers
906 views
Why does dimethyl dichlorosilane undergo hydrolysis to form siloxane polymers, but its carbon analog does not?
Dimethyl dichlorosilane will undergo hydrolysis to form siloxane polymers. But why would its carbon analog dimethyl dichlorocarbon not be able to undergo a similar hydrolysis reaction to form polymers?...
