Search

silicon tetrachloride

Input interpretation

silicon tetrachloride
silicon tetrachloride

Chemical names and formulas

formula | SiCl_4 Hill formula | Cl_4Si name | silicon tetrachloride IUPAC name | tetrachlorosilane alternate names | silane, tetrachloro- | silicon chloride | silicon(IV) chloride | tetrachlorosilane mass fractions | Cl (chlorine) 83.5% | Si (silicon) 16.5%
formula | SiCl_4 Hill formula | Cl_4Si name | silicon tetrachloride IUPAC name | tetrachlorosilane alternate names | silane, tetrachloro- | silicon chloride | silicon(IV) chloride | tetrachlorosilane mass fractions | Cl (chlorine) 83.5% | Si (silicon) 16.5%

Lewis structure

Draw the Lewis structure of silicon tetrachloride. Start by drawing the overall structure of the molecule: Count the total valence electrons of the chlorine (n_Cl, val = 7) and silicon (n_Si, val = 4) atoms: 4 n_Cl, val + n_Si, val = 32 Calculate the number of electrons needed to completely fill the valence shells for chlorine (n_Cl, full = 8) and silicon (n_Si, full = 8): 4 n_Cl, full + n_Si, full = 40 Subtracting these two numbers shows that 40 - 32 = 8 bonding electrons are needed. Each bond has two electrons, so the above diagram has all the necessary bonds. There are 4 bonds and hence 8 bonding electrons in the diagram. Lastly, fill in the remaining unbonded electrons on each atom. In total, there remain 32 - 8 = 24 electrons left to draw: Answer: | |
Draw the Lewis structure of silicon tetrachloride. Start by drawing the overall structure of the molecule: Count the total valence electrons of the chlorine (n_Cl, val = 7) and silicon (n_Si, val = 4) atoms: 4 n_Cl, val + n_Si, val = 32 Calculate the number of electrons needed to completely fill the valence shells for chlorine (n_Cl, full = 8) and silicon (n_Si, full = 8): 4 n_Cl, full + n_Si, full = 40 Subtracting these two numbers shows that 40 - 32 = 8 bonding electrons are needed. Each bond has two electrons, so the above diagram has all the necessary bonds. There are 4 bonds and hence 8 bonding electrons in the diagram. Lastly, fill in the remaining unbonded electrons on each atom. In total, there remain 32 - 8 = 24 electrons left to draw: Answer: | |

3D structure

3D structure
3D structure

Basic properties

molar mass | 169.9 g/mol phase | liquid (at STP) melting point | -70 °C boiling point | 57.6 °C density | 1.483 g/cm^3 solubility in water | decomposes
molar mass | 169.9 g/mol phase | liquid (at STP) melting point | -70 °C boiling point | 57.6 °C density | 1.483 g/cm^3 solubility in water | decomposes

Units

Liquid properties (at STP)

density | 1.483 g/cm^3 vapor pressure | 419.9 mmHg dynamic viscosity | 0.0994 Pa s (at 25 °C) surface tension | 0.0196 N/m
density | 1.483 g/cm^3 vapor pressure | 419.9 mmHg dynamic viscosity | 0.0994 Pa s (at 25 °C) surface tension | 0.0196 N/m

Units

Thermodynamic properties

specific heat capacity c_p | gas | 0.5315 J/(g K) | liquid | 0.8553 J/(g K) molar heat capacity c_p | gas | 90.3 J/(mol K) | liquid | 145.3 J/(mol K) specific free energy of formation Δ_fG° | liquid | -3.65 kJ/g molar free energy of formation Δ_fG° | liquid | -620 kJ/mol specific heat of formation Δ_fH° | gas | -3.867 kJ/g molar heat of formation Δ_fH° | gas | -657 kJ/mol specific entropy S° | liquid | 1.413 J/(g K) molar entropy S° | liquid | 240 J/(mol K) molar heat of vaporization | 28.7 kJ/mol | specific heat of vaporization | 0.169 kJ/g | molar heat of fusion | 7.6 kJ/mol | specific heat of fusion | 0.045 kJ/g | thermal conductivity | 0.099 W/(m K) | critical temperature | 517 K | critical pressure | 3.73 MPa | (at STP)
specific heat capacity c_p | gas | 0.5315 J/(g K) | liquid | 0.8553 J/(g K) molar heat capacity c_p | gas | 90.3 J/(mol K) | liquid | 145.3 J/(mol K) specific free energy of formation Δ_fG° | liquid | -3.65 kJ/g molar free energy of formation Δ_fG° | liquid | -620 kJ/mol specific heat of formation Δ_fH° | gas | -3.867 kJ/g molar heat of formation Δ_fH° | gas | -657 kJ/mol specific entropy S° | liquid | 1.413 J/(g K) molar entropy S° | liquid | 240 J/(mol K) molar heat of vaporization | 28.7 kJ/mol | specific heat of vaporization | 0.169 kJ/g | molar heat of fusion | 7.6 kJ/mol | specific heat of fusion | 0.045 kJ/g | thermal conductivity | 0.099 W/(m K) | critical temperature | 517 K | critical pressure | 3.73 MPa | (at STP)

Chemical identifiers

CAS number | 10026-04-7 PubChem CID number | 24816 PubChem SID number | 24852870 SMILES identifier | [Si](Cl)(Cl)(Cl)Cl InChI identifier | InChI=1/Cl4Si/c1-5(2, 3)4 RTECS number | VW0525000 MDL number | MFCD00011229
CAS number | 10026-04-7 PubChem CID number | 24816 PubChem SID number | 24852870 SMILES identifier | [Si](Cl)(Cl)(Cl)Cl InChI identifier | InChI=1/Cl4Si/c1-5(2, 3)4 RTECS number | VW0525000 MDL number | MFCD00011229

NFPA label

NFPA label
NFPA label
NFPA health rating | 3 NFPA fire rating | 0 NFPA reactivity rating | 2 NFPA hazards | water reactive
NFPA health rating | 3 NFPA fire rating | 0 NFPA reactivity rating | 2 NFPA hazards | water reactive

Safety properties

flash point | -18 °C
flash point | -18 °C
DOT hazard class | 8 DOT numbers | 1818
DOT hazard class | 8 DOT numbers | 1818

Toxicity properties

RTECS classes | primary irritant
RTECS classes | primary irritant

Random Queries

IUPAC name of sodium hydride vs sodium amide
alternate names of sodium chlorate vs tellurium tetrafluoride
formula of thiocyanate anion vs nitrate anion
formula of barium sulfate
NFPA reactivity rating of phosphoric acid
name of fluoxetine
name of ketone functional group vs iron(III) cation
Hill formula of pyrite vs neodymium iodide
O2 + NH3 = H2O + NO + N2
alternate names of silver(I) ions