EX3
Harmless
Posts: 12
Registered: 5-6-2003
Member Is Offline
Mood: No Mood
|
|
SnCl2 or SnCl4
Sn + 2HCl --> SnCl2 + 2H
or
Sn + 4HCl --> SnCl4 + 4H
is that correct?
|
|
|
madscientist
National Hazard
Posts: 962
Registered: 19-5-2002
Location: American Midwest
Member Is Offline
Mood: pyrophoric
|
|
Tin will dissolve in aqueous hydrochloric acid to form stannous chloride dihydrate:
Sn + HCl + 2H<sub>2</sub>O ----> SnCl<sub>2</sub>*2H<sub>2</sub>O
I weep at the sight of flaming acetic anhydride.
|
|
|
PHILOU Zrealone
International Hazard
Posts: 2893
Registered: 20-5-2002
Location: Brussel
Member Is Offline
Mood: Bis-diazo-dinitro-hydroquinonic
|
|
SnCl4 will only form when Sn is exposed hot to dry Cl2!
Sn + 2 Cl2 --> SnCl4
And maybe if SnO2 is treated with concentrated or dry HCl.
SnO2 + 4HCl --> SnCl4 + 2H2O
PH Z (PHILOU Zrealone)
"Physic is all what never works; Chemistry is all what stinks and explodes!"-"Life that deadly disease, sexually transmitted."(W.Allen)
|
|
|
a_bab
Hazard to Others
Posts: 458
Registered: 15-9-2002
Member Is Offline
Mood: Angry !!!!!111111...2?!
|
|
AND SnCl4 is a fuming liquid.
|
|
|
EX3
Harmless
Posts: 12
Registered: 5-6-2003
Member Is Offline
Mood: No Mood
|
|
10x
and i wont mode from this CTeAP
|
|
|
DDTea
National Hazard
Posts: 940
Registered: 25-2-2003
Location: Freedomland
Member Is Offline
Mood: Degenerate
|
|
While the above reaction seems to make sense, reacting Sn with HCl, I will explain why it does not work - and it is for a very simple reason  .
The reaction you speak of is a single replacement reaction, which follows the form A + BC --> AC + B. For the reaction to be performed, A must be
more reactive than B. In this case, Sn is less reactive than H, therefore the reaction does not proceed as expected.
|
|
|
Theoretic
National Hazard
Posts: 776
Registered: 17-6-2003
Location: London, the Land of Sun, Summer and Snow
Member Is Offline
Mood: eating the souls of dust mites
|
|
Sn IS more reactive than H2, its oxidation potential is -0.136 V, which is why it can dissolve in acid.
|
|
|
![[*]](images/xpblue/default_icon.gif){kind=icon}
