1,1,1-TRICHLOROETHANE* - (71-55-6)

introduzione

Nome: 1,1,1-trichloroethane*; methyl chloroform; chlorothene
* IUPAC
Numero CAS: 71-55-6
Formula chimica: C2H3Cl3 or CH3CCl3
Massa molare: 133.40422 g
Percentuale di massa: C 18.006 %; H 2.2666 %; Cl 79.726 % 
isomeri:  1,1,2-trichloroethane

Classificazione

• biologico • alcano

Usi / Funzione

• "In cold type metal cleaning, also in cleaning plastic molds." 1

Proprietà fisiche

Punto di fusione:*
-30.4°C 2 = 242.75 K = -22.72°F
Punto di ebollizione:*
74.0°C 2 = 347.15 K = 165.2°F
Densità (g/cm3):
1.3390 at 20 mm Hg 2
* - 1 atm pressure

solubilità

qualitativo:
leggermente solubile:  2
solubile:  • 2
mescolabile:  2

bonding

doppi legami: 0
tripli legami: 0
Sigma Bonds: 7
pi Bonds: 0
Totale: 7
carboxyl Gruppi: 0
gruppi idrossilici: 0
ibridazione: all carbons are sp3

Termochimica

ΔHf° (ℓ): -42.40 kcal/mol = -177.4 kJ/mol 3
ΔHf° (g): -34.51 kcal/mol = -144.4 kJ/mol 3
ΔHf° (g): -34.01 kcal/mol 4 = -142.30 kJ/mol
S° (ℓ): 54.35 cal/(mol•K) = 227.4 J/(mol•K) 5
S° (g): 77.22 cal/(mol•K) = 323.1 J/(mol•K) 5
S° (g): 76.49 cal/(mol•K) 6 = 320.03 J/(mol•K)
ΔGf° (g): -18.21 kcal/mol 8 = -76.19 kJ/mol

Informazioni sulla sicurezza

NFPA 704 Ratings:
Health: 3 - Short exposure could cause serious temporary or moderate residual injury.
Flammability: 1 - Must be heated before ignition can occur. Flash point over 93°C (200°F).
Reactivity: 1 - Normally stable, but can become unstable at elevated temperatures and pressures.

Per maggiori informazioni

fonti

(1) - The Merck Index: An Encyclopedia of Chemicals, Drugs, and Biologicals, 13th ed.; Budavari, S.; O'Neil, M.J.; Smith, A.; Heckelman, P. E.; Kinneary, J. F., Eds.; Merck & Co.: Whitehouse Station, NJ, 2001; entry 9710.
(2) - Lide, David R. CRC Handbook of Chemistry and Physics, 83rd ed.; CRC Press: Boca Raton, FL, 2002; p 3-157.
(3) - Lide, David R. CRC Handbook of Chemistry and Physics, 83rd ed.; CRC Press: Boca Raton, FL, 2002; p 5-30.
(4) - Dean, John A. Lange's Handbook of Chemistry, 12th ed.; McGraw-Hill Book Company: New York, NY, 1979; p 9:92.
(5) - Lide, David R. CRC Handbook of Chemistry and Physics, 83rd ed.; CRC Press: Boca Raton, FL, 2002; p 5-30.
(6) - Dean, John A. Lange's Handbook of Chemistry, 12th ed.; McGraw-Hill Book Company: New York, NY, 1979; p 9:92.
(7) - Lide, David R. CRC Handbook of Chemistry and Physics, 83rd ed.; CRC Press: Boca Raton, FL, 2002; p 5-30.
(8) - Dean, John A. Lange's Handbook of Chemistry, 12th ed.; McGraw-Hill Book Company: New York, NY, 1979; p 9:92.