methylhydrazine

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Properties of substance:

methylhydrazine

Group of substances:

organic

Physical appearance:

liquid

Empirical formula (Hill's system for organic substances):

CH₆N₂

Structural formula as text:

CH3NHNH2

Molar/atomic mass: 46.07

Melting point (°C):

-52

Boiling point (°C):

87.5

CAS №: 60-34-4

Density:

0.871 (20°C, g/cm³)

Dissociation:

pK_BH⁺ (1) = 7.85 (25°C, water)

Standard molar enthalpy (heat) of formation Δ_fH⁰ (298.15 K, kJ/mol):

54.2 (l)

Standard molar Gibbs energy of formation Δ_fG⁰ (298.15 K, kJ/mol):

180 (l)

Standard molar entropy S⁰ (298.15 K, J/(mol·K)):

165.9 (l)

Molar heat capacity at constant pressure C_p (298.15 K, J/(mol·K)):

134.9 (l)

Standard molar enthalpy (heat) of formation Δ_fH⁰ (298.15 K, kJ/mol):

94.7 (g)

Standard molar Gibbs energy of formation Δ_fG⁰ (298.15 K, kJ/mol):

187 (g)

Standard molar entropy S⁰ (298.15 K, J/(mol·K)):

278.8 (g)

Molar heat capacity at constant pressure C_p (298.15 K, J/(mol·K)):

71.1 (g)

Enthalpy (heat) of fusion Δ_fusH (kJ/mol)

10.41 (s) [Ref.]

LD₅₀ (mg/kg):

12 (rabbits, intravenous)
95 (rabbits, onto the skin)
33 (rats, oral)
17 (rats, intravenous)
35 (rats, subcutaneous)
183 (rats, onto the skin)
21 (rats, intraperitoneal)
48 (guinea pig, onto the skin)
33 (mice, oral)
25 (mice, subcutaneous)
15 (mice, intraperitoneal)
12 (dogs, intravenous)
22 (hamster, oral)
239 (hamster, onto the skin)
21 (hamster, intraperitoneal)

Critical temperature (°C):

294

References:

CRC Handbook of Chemistry and Physics. - 90ed. - CRC Press, 2010. - pp. 5-20
Dictionary of organic compounds. - Vol. 2, Eccaine - Myrtillin chloride. - London, 1946. - pp. 735
Military medical science letters - 2012. - Vol. 81, No. 2. - pp. 64-65
The Merck Index 11th ed., Merck & Company, 1989. - pp. 957
Вредные вещества в промышленности: Справочник для химиков, инженеров и врачей. - 7-е изд., Т.3. - Л.: Химия, 1976. - pp. 95-97 [Russian]
Иоффе Б.В., Кузнецов Б.А., Потехин А.А. Химия органических производных гидразина. - Л.: Химия, 1979. - pp. 50 [Russian]
Химмотология ракетных и реактивных топлив. - Под ред. Браткова А.А. - М.: Химия, 1987. - pp. 99-105 [Russian]

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© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru

Properties of substance:

methylhydrazine

Group of substances:

Physical appearance:

Empirical formula (Hill's system for organic substances):

Structural formula as text:

Molar/atomic mass: 46.07

Melting point (°C):

Boiling point (°C):

CAS №: 60-34-4

Density:

Dissociation:

Standard molar enthalpy (heat) of formation ΔfH0 (298.15 K, kJ/mol):

Standard molar Gibbs energy of formation ΔfG0 (298.15 K, kJ/mol):

Standard molar entropy S0 (298.15 K, J/(mol·K)):

Molar heat capacity at constant pressure Cp (298.15 K, J/(mol·K)):

Standard molar enthalpy (heat) of formation ΔfH0 (298.15 K, kJ/mol):

Standard molar Gibbs energy of formation ΔfG0 (298.15 K, kJ/mol):

Standard molar entropy S0 (298.15 K, J/(mol·K)):

Molar heat capacity at constant pressure Cp (298.15 K, J/(mol·K)):

Enthalpy (heat) of fusion ΔfusH (kJ/mol)

LD50 (mg/kg):

Critical temperature (°C):

References:

Standard molar enthalpy (heat) of formation Δ_fH⁰ (298.15 K, kJ/mol):

Standard molar Gibbs energy of formation Δ_fG⁰ (298.15 K, kJ/mol):

Standard molar entropy S⁰ (298.15 K, J/(mol·K)):

Molar heat capacity at constant pressure C_p (298.15 K, J/(mol·K)):

Standard molar enthalpy (heat) of formation Δ_fH⁰ (298.15 K, kJ/mol):

Standard molar Gibbs energy of formation Δ_fG⁰ (298.15 K, kJ/mol):

Standard molar entropy S⁰ (298.15 K, J/(mol·K)):

Molar heat capacity at constant pressure C_p (298.15 K, J/(mol·K)):

Enthalpy (heat) of fusion Δ_fusH (kJ/mol)

LD₅₀ (mg/kg):