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Property	Units	Value
Molecular Weight		90.96
Bubble Point (1 atm)	°C	-39.6
Dew Point (1 atm)	°C	-32.8
Bubble Point Pressure (25°C)	bara	10.15
Melting Point	°C	-111
Estimated Critical Temperature	°C	89
Estimated Critical Pressure	bara	44.6
Estimated Critical Density	kg/m3	490
Latent Heat of Vaporisation at nBpt	kJ/kg	245.8
Saturated Vapour Density at nBpt	kg/m3	3.52
Coeff. Vol. Therm. Exp (LIQ,0-20°C)	K-1	0.0031

EQUATION OF STATE (MARTIN-HOU)
 
where :

T_r= T/T_c , P_r = P/P_c, V_r = V/V_c= V.RHO_c
X = 3.636938
B = 0
K = 55.6370770247563
T_c,P_c,RHO_c = 362.15(K), 44.6(bara), 490.00(kg/m3)

A₁,B₁,C₁ = -11.669383791732, 7.0212041755075, -14.999262541542
A₂,B₂,C₂ = 6.4189070904041, -4.0755524668421, 59.214853506754
A₃,B₃,C₃ = 74.569071589881, -61.054777474666, -4226.3911942345
A₄,B₄,C₄ = -344.53295598940, 288.37902875608, 16113.353297211

APPLICABLE RANGE:- 0-30 BARA, 0-100K SUPERHEAT
SATURATION ENVELOPE - BUBBLE POINT TEMPERATURES

Bubble Point Temperature (Tb) = A + BX + CX2 + DX3

Tb	=	Bubble point temperature in K
X	=	Ln(P)
P	=	pressure in bara
A	=	233.2948
B	=	21.48092
C	=	1.964468
D	=	0.3645091

SATURATION ENVELOPE - DEW POINT TEMPERATURES

Dew Point Temperature (Td) = A + BX + CX2 + DX3

Td	=	Dew point temperature in K
X	=	Ln(P)
P	=	pressure in bara
A	=	240.0896
B	=	20.91159
C	=	2.178347
D	=	0.2700534

EXTENDED ANTOINE EQUATION - EVAPORATOR

                 B				  Ln(P) = A + ----------- + DTme + ELn(Tme)
              C + Tme	  

This calculation assumes that the evaporator inlet condition is 0.25 liquid mass fraction, 0.75 vapour mass fraction.

P	=	Condensor pressure in bara
Tme	=	Evaporator mid point Temperature K
A	=	128.7501
B	=	-5654.523
C	=	0
D	=	0.03433552
E	=	-20.67557

EXTENDED ANTOINE EQUATION - CONDENSOR

                B				  Ln(P) = A + ----------- + DTmc + ELn(Tmc)                C + Tmc	  

Condenser mid point temperature is the arithmetic mean of the dew and bubble point temperatures.

P	=	Condensor pressure in bara
Tmc	=	Condensor mid point Temperature K
A	=	120.9555
B	=	-5432.29
C	=	0
D	=	0.03203818
E	=	-19.31465

LATENT HEAT VAPORISATION

DHvap	=	A + Bx + Cx2 + Dx3 + Ex4
where x	=	(1-(Tm/Tc))(1/3)

A	=	245.0870	Tm = Mid point Temperature K
B	=	-1746.162	Tc = Crit. Temperature K
C	=	6277.278	Tc = 362.15 K
D	=	-8069.922	DHvap kJ/kg
E	=	3798.246

Mid point temperature is the arithmetic mean of the dew and bubble point temperatures

IDEAL GAS HEAT CAPACITY

Cp(ideal) = A + BT + CT2 + D/T + E/T2

A	=	0.3460138	T = Temperature K
B	=	1.834465E-03
C	=	-1.104499E-06	Cp(ideal) kJ/kg.K
D	=	1.515241E-09
E	=	-941.2880

SATURATED LIQUID ENTHALPY

H liq	=	A + Bx + Cx2 + Dx3 + Ex4
where x	=	(1-(Tb/Tc))(1/3)

A	=	120.5514	Tb = Bubble point temperature K
B	=	1255.179	Tc = Crit. Temperature K
C	=	-4189.576	Tc = 362.15 K
D	=	4964.185
E	=	-2487.876	H liq kJ/kg

LIQUID DENSITY

d liq	=	A + Bx + Cx2 + Dx3 + Ex4
where x	=	(1-(Tb/Tc))(1/3)

A	=	-578.4417	Tb = Bubble Point Temperature K
B	=	7729.087	Tc = Crit. Temperature K
C	=	-15482.275	Tc = 362.15 K
D	=	16344.275
E	=	-6172.510	d liq kg/m3

LIQUID VISCOSITY

Ln µ liq = A + B/Tb + CTb + DTb2

A	=	14.964531	Tb = Bubble point temperature K
B	=	-1211.681	µ liq cP
C	=	-5.851630E-02
D	=	5.401034E-05

LIQUID THERMAL CONDUCTIVITY

K liq

=

A + BTb + CTb2 + DTb3

A	=	0.2247254
B	=	-5.017394E-04	Tb = Bubble point Temperature K
C	=	3.364773E-07
D	=	-6.410256E-10	K liq W/m.K

SURFACE TENSION

ó = A(1-(Tb/Tc))1.26

A	=	60.68853	Tb =Bubble point temperature K
			Tc = Crit. Temperature K
			Tc = 362.15 K
			ó mN/m

SATURATED VAPOUR DENSITY

d vap	=	A + Bx + Cx2 + Dx3 + Ex4
where x	=	(1-(Td/Tc))(1/3)

A	=	155.7792	Td = Dew point temperature K
B	=	1270.640	Tc = Crit. Temperature K
C	=	-6002.290	Tc = 362.15 K
D	=	7814.886	d vap kg/m3
E	=	-3250.160

VAPOUR VISCOSITY (IDEAL VAPOUR)

µ vap = A + BT

A	=	8.30985E-04	T = Temperature K
B	=	3.8343E-05	µ vap cP

VAPOUR VISCOSITY (SAT VAPOUR)

µ vap = A + BTd + CTd2

A	=	0.03245873	Td = Dew Point temperature K
B	=	-1.98915E-04	µ vap cP
C	=	4.413078E-07

VAPOUR THERMAL CONDUCTIVITY (IDEAL VAPOUR)

Kgas = A + BT

A	=	-0.01087128	T = Temperature K
B	=	8.063636E-05	Kgas W/m.K

VAPOUR THERMAL CONDUCTIVITY (SAT VAPOUR)

Kvap= A + BTd + CTd2 + DTd3

A	=	-0.04905397	Td = Dew Point Temperature K
B	=	5.285969E-04	Kvap W/m.K
C	=	-1.761722E-06
D	=	2.350427E-09

SPEED OF SOUND (SAT. VAPOUR)

μ vap = A + BTd + CTd2 + DTd3 + E/Td

A	=	2944.533	Td = Dew Point Temperature K
B	=	-16.91687	μ vap m/s
C	=	0.04748255
D	=	-5.136742E-05
E	=	-179743.05

SATURATION ENVELOPE



LIQUID PROPERTIES


IDEAL GAS PROPERTIES


SATURATED VAPOUR PROPERTIES


The correlations in this data sheet should not be used outside the applicable ranges indicated. Contact Mexichem Fluor for further advice.

Information contained in this publication, or as otherwise supplied to the Users is believed to be accurate and given in good faith, but it is for the User to satisfy itself of the suitability for its own particular purpose. Mexichem Fluor gives no warranty as to the fitness of the Product for any particular purpose and any implied warranty or condition (statutory or otherwise) is excluded except to the extent that such exclusion is prevented by law. Mexichem Fluor accepts no liability for loss or damage (other than that arising from death or personal injury caused by defective product, if proved), resulting from reliance on this information. Any remaining reference to ICI within this document should be assumed to mean Mexichem Fluor. Freedom under Patent, Copyright and Design cannot be assumed. KLEA® and Mexichem Fluor® are trademarks of Mexichem SAB de C.V. Mexichem UK Limited is Registered in England No 07088219. Registered Office, The Heath Business & Technical Park, Runcorn, Cheshire, WA7 4QX.