webnovel
What is the reaction equation and phenomenon of concentrated sulfuric acid carbonation?

What is the reaction equation and phenomenon of concentrated sulfuric acid carbonation?

2026-09-20 20:22
1 answer

以蔗糖为例,浓硫酸碳化反应方程式为:$C_{12}H_{22}O_{11}\stackrel{浓硫酸}{=\!=\!=}12C + 11H_{2}O$,反应过程中首先蔗糖在浓硫酸作用下脱水,生成碳和水,试验中蔗糖会变黑,黑色的就是碳颗粒;然后脱水反应产生的大量热让浓硫酸和碳发生反应:$C + 2H_{2}SO_{4}(浓)\stackrel{加热}{=\!=\!=}CO_{2}\uparrow+ 2SO_{2}\uparrow+ 2H_{2}O$。 现象为:被浓硫酸碳化的物质一般为含氢、氧元素的有机物,反应时有机物迅速变黑,这是由于浓硫酸按水分子中氢氧原子数的比(2∶1)夺取被脱水物中的氢原子和氧原子,使其碳化,同时可能会产生二氧化硫等气体。 点击前往免费阅读更多精彩小说

Reaction equation and phenomenon of excess iron and concentrated sulfuric acid

Iron reacted with concentrated sulfuric acid. If there was an excess of concentrated sulfuric acid, the reaction equation was: Fe6 HNO2 (concentrated)= heating = Fe3 (NO2)+3NO2 ^+3H2 O. If there is an excess of iron, the reaction equation is: Fe4 HNO2 (concentrated)= heating = Fe2 (NO2) 2 + 2NO2 2 + 2H2 O. [Phenomenon: The reaction produces reddish-brown gas (NO <2>), and the iron is gradually dissolved.] At the same time, the color of the solution may vary according to the relative amount of iron and sulfuric acid and the degree of reaction. If the solution is formed, it may be brownish-yellow, and if the solution is formed, it may be light green. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

1 answer
2026-08-19 03:04

Reaction equation and phenomenon of concentrated sulfuric acid adding carbon dioxide

There was no reaction between carbon dioxide and concentrated sulfuric acid, so there was no reaction equation and no phenomenon caused by the reaction between the two. The concentrated sulfuric acid had the ability to absorb water and could be used as a drying agent in the preparation process of carbon dioxide. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

1 answer
2026-09-18 22:01

Reaction equation of concentrated sulfuric acid and sulfuric acid ester

Under normal conditions, ester and concentrated sulfuric acid would not react, so there was no reaction equation. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

1 answer
2026-09-09 07:19

What is the equilibrium phenomenon of the reaction equation of sulfuric acid and sulfuric acid?

There was no reaction between sulfuric acid and sulfuric acid, so there was no equilibrium of the reaction equation. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

1 answer
2026-07-15 15:18

Reaction equation of concentrated and diluted sulfuric acid with iron

1. 铁与浓硝酸反应: - 常温下铁在浓硝酸中会钝化,不反应。 - 加热时,若铁少量:\(Fe + 6HNO_{3}(浓)=\triangle=Fe(NO_{3})_{3}+3NO_{2}\uparrow+3H_{2}O\); - 若铁过量:\(Fe + 4HNO_{3}(浓)=\triangle=Fe(NO_{3})_{2}+2NO_{2}\uparrow+2H_{2}O\)。 2. 铁与稀硝酸反应: - 若铁少量:\(Fe + 4HNO_{3}(稀)=Fe(NO_{3})_{3}+NO\uparrow+2H_{2}O\); - 若铁过量:\(3Fe + 8HNO_{3}(稀)=3Fe(NO_{3})_{2}+2NO\uparrow+4H_{2}O\)。 <a href="/?from=ask_words" style="color:red" target="_blank">点击前往免费阅读更多精彩小说</a>

1 answer
2026-07-05 04:10

What is the equation for the reaction of lithium and concentrated sulfuric acid?

The chemical equation of the reaction between the two is: Mn +2ClCl2 = Mn + Mn + Mn. The concentration of the acid generally did not affect the type of product. The reaction formed a mixture of hydrogen and mercury. The excess of the acid would form a complex ion with the mercury ion. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

1 answer
2026-09-12 23:46

What is the reaction phenomenon of ester in concentrated sulfuric acid?

The ester may undergo a reaction of decomposition under the condition of concentrated sulfuric acid. In such an acidic environment, the ester's decomposition was irreversible, and the concentrated sulfuric acid acted as a catalyst. If a saturated fatty acid ester of a higher fatty acid was used to catalyze the decomposition of the fatty acid ester under the effect of concentrated sulfuric acid, the dehydration reaction of the alcohol in the fatty acid ester would occur to form an unsaturated ene or alkyne bond. However, there was not enough information about the reaction phenomenon, so it was impossible to answer accurately. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

1 answer
2026-09-18 21:56

The chemical equation and phenomenon explanation of the reaction between sulfuric acid and sulfuric acid

The chemical equation for the reaction between sulfuric acid and zinc-nitrates was: Mn (NO3)2 + H2SO4 ==== ZnSO4 + 2HNO3. Regarding this reaction phenomenon, the reference materials did not give a relevant explanation, so it was impossible to give an accurate answer. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

1 answer
2026-08-24 18:11

What is the ion equation phenomenon of the reaction between sulfuric acid and sulfuric acid?

Dilute sulfuric acid and sulfuric acid did not react, so there was no reaction phenomenon, and there was no ion equation for the reaction. This was because they did not meet the conditions for a metathesis reaction, that is, there was no precipitations, gases, or water, and they were all acids with similar properties. They could react with alkalites or basic oxides to form salt. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

1 answer
2026-09-10 12:49

Reaction equation and phenomenon of heating dibutanol and sulfuric acid

When 2 -Butanol and concentrated sulfuric acid were mixed and heated to 170 ° C, the elimination reaction occurred. The reaction equation was: CH3-CH2-CH3 $</#x001;<#x001;&&&&&&&&& When the reaction temperature was 140 ° C, the intermolecular dehydration reaction occurred. The reaction equation was: 2CH3-CH(SH)-CH2-CH3 $<<stack>{concentrated sulfuric acid, 140 ° C}{→}$CH3-CH-OCHCH3 $<<stack>{CH2CH3CH2CH3}$. As for the reaction phenomenon, the reference materials did not mention it, so it was impossible to answer accurately. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

1 answer
2026-09-14 01:46
a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
q
r
s
t
u
v
w
x
y
z