Search found 1623 matches

by expert
Sun Oct 16, 2016 10:05 pm
Forum: Chemistry forum
Topic: Nomenclature organic chemistry
Replies: 1
Views: 3868

This name is not correct. Look at this triamine
http://www.chemicalbook.com/ChemicalPro ... 181802.htm

Now regarding stearyl: is this stearate (salt) or amide derivative of this triamine? It is not clear
by expert
Sun Oct 16, 2016 9:55 pm
Forum: Chemistry forum
Topic: Is there a biodegradable pigment that is oil soluble?
Replies: 1
Views: 4558

Make it fluorescent and trace with UV light, but if you want to make an invention, you better not disclose it to the public before filing a patent application.
by expert
Sun Oct 16, 2016 9:49 pm
Forum: Chemistry forum
Topic: FeEDTA Concentration
Replies: 1
Views: 9692

People use copper as a catalyst. Oxygen is necessary for oxidation. The process is very touchy.

file:///C:/Users/AG/Downloads/SGS%20MIN%20WA018%20Thiosulphate%20Leaching%20Alternative%20to%20Cyanide%20in%20Gold%20Processing%20EN%2011.pdf
by expert
Sat Oct 15, 2016 11:51 am
Forum: Chemistry forum
Topic: Organic substance combustion reaction
Replies: 2
Views: 5829

Sorry, Gurongax, you are not correct. Normal burning of organic compounds with nitrogen always leads to nitrogen N2 as a product C6H8N2 + O2 = H2O + CO2 + N2 Only at higher temperatures or special conditions formation of NO and NO2 possible as a side reaction. Usually it is an environmental concern ...
by expert
Sat Oct 15, 2016 11:01 am
Forum: Chemistry forum
Topic: Making Glucose
Replies: 1
Views: 8273

I copied your equation C12H22O11 + H2O -> 2C6H12O6 into the chemistry tool http://www.webqc.org/balance.php
and got the result Balanced equation:
C12H22O11 + H2O = 2 C6H12O6

Everything works! Make sure use O for oxygen, nor 0 (zero): very common mistake
by expert
Sat Oct 15, 2016 10:40 am
Forum: Chemistry forum
Topic: Balancing reactions with multiple oxidation state changes?
Replies: 5
Views: 6893

To identify parallel reactions follow elements that change oxidation state to different levels. For example, in this case CH4 + O2 = C2H2 + CO + H2 C4- ==> C2- (for CO) C4- ==> C- (for C2H2) these are to independent processes of oxidation of the same molecule: methane For example, in this real case ...
by expert
Thu Oct 13, 2016 10:47 pm
Forum: Chemistry forum
Topic: Need help with balancing two formulas
Replies: 1
Views: 3558

Br- + KHSO5 --> HOBr + H2SO4 Number of electrons from reducing agent (Br-) should be equal to number of electrons accepted by oxidizer (peroxide KOS(O2)- O-OH ): three oxygen atoms are O2- and two (bold highlight) oxygen atoms of peroxide are 2O- Br- - 2e- = Br+ 2O- + 2e- = 2O2- Therefore, for every...
by expert
Thu Oct 13, 2016 9:24 pm
Forum: Chemistry forum
Topic: Restoring a Lead-Acid battery
Replies: 1
Views: 3569

It is risky to do it yourself. Better Google restore forklift battery and then find reputable shop. Scientifically, it is possible to extend life of a battery by a right treatment, so better find professionals and trust them
by expert
Thu Oct 13, 2016 9:16 pm
Forum: Chemistry forum
Topic: How can I balance these two equations?
Replies: 2
Views: 3860

Google each chemical such as potassium chlorate if you don't know
https://en.wikipedia.org/wiki/Potassium_chlorate

and then write chemical reactions, then balance them, then get credit!
by expert
Thu Oct 13, 2016 9:11 pm
Forum: Chemistry forum
Topic: Сan a crushed hackmanite be added to cosmetics?
Replies: 2
Views: 3986

It is known that sodalite like some other minerals is added somethimes to cosmetics for glitter but I don't recommend doing it yourself since many minerals may contain toxic elements such as mercury an led, depends on the source
by expert
Thu Oct 13, 2016 8:44 pm
Forum: Chemistry forum
Topic: Balancing reactions with multiple oxidation state changes?
Replies: 5
Views: 6893

Try to split it into two parallel reactions and then combine them back into one CH4 + O2 = C2H2 + CO + H2 __________________________ CH4 + O2 = CO + H2 CH4 = C2H2 + H2 In reality these are two separate processes, and they can occur in different ratios, depends on conditions: temperature, catalyst, e...
by expert
Thu Oct 13, 2016 8:32 pm
Forum: Chemistry forum
Topic: Help Breaking this down?
Replies: 2
Views: 3646

The calculator somehow doesn't like fractions. I multiplied everything by x100 and calculated the following (K77Al193(Al50Si350O1000)(OH)200) The result Molar mass of (K77Al193(Al50Si350O1000)(OH)200) is 38797.8760 g/mol Actual result divide by 100 = 387.98 g/mol Symbol Element Atomic weight Atoms M...
by expert
Fri Jul 11, 2014 7:01 pm
Forum: Chemistry forum
Topic: can anyone assist me in balancing this equation
Replies: 3
Views: 4884

The problem is that no such a compound: NO3
by expert
Sun Jun 29, 2014 7:07 pm
Forum: Chemistry forum
Topic: Reaction
Replies: 3
Views: 5165

I insist that acetone and acetylene will not react under ordinary conditions. Apparently, the authors of this problem forgot to indicate the conditions. I olnly guess that they meant the reaction in the presence of a base, such as in Favorskii–Babayan synthesis ketones and acetylenic compounds rea...
by expert
Sun Jun 29, 2014 6:27 pm
Forum: Chemistry forum
Topic: qc
Replies: 2
Views: 3945

From Wikipedia : Research Octane Number (RON)[edit]The most common type of octane rating worldwide is the Research Octane Number (RON). RON is determined by running the fuel in a test engine with a variable compression ratio under controlled conditions, and comparing the results with those for mixtu...