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Pentaethylenehexamine (abbreviated PEHA) is an organic amine. It is composed of five ethylene groups-CH 2 CH 2 - joined together in a chain by four secondary amine groups (-NH-) and terminated on each end by primary amine groups (-NH 2). Pentaethylenehexamine is a hexadentate ligand, owing to the Lewis basicity of the six amine groups. [3]
Chemical formula. C 8 H 23 N 5: Molar mass: 189.307 g·mol −1 Hazards ... Pentaethylenehexamine Triethylenetetramine: Except where otherwise noted, ...
Molecular weight (M.W.) (for molecular compounds) and formula weight (F.W.) (for non-molecular compounds), are older terms for what is now more correctly called the relative molar mass (M r). [8] This is a dimensionless quantity (i.e., a pure number, without units) equal to the molar mass divided by the molar mass constant .
Number average molar mass (M n), also loosely referred to as number average molecular weight (NAMW). Mass average molar mass (M w), where w stands for weight; also commonly referred to as weight average or weight average molecular weight (WAMW). Z-average molar mass (M z), where z stands for centrifugation (from German Zentrifuge).
Atomic number Element Molar mass Formal standard atomic weight s.a.w., formal short Note Z calculated; g·mol −1 A r, standard [2] A r, abridged and conventional [2]; C 9 H 8 O 4: 180.159 g·mol −1
Mass fraction can also be expressed, with a denominator of 100, as percentage by mass (in commercial contexts often called percentage by weight, abbreviated wt.% or % w/w; see mass versus weight). It is one way of expressing the composition of a mixture in a dimensionless size ; mole fraction (percentage by moles , mol%) and volume fraction ...
It is the number of Nitrogens x 56.1 (Mwt of KOH) x 1000 (convert to milligrams) divided by molecular mass of the amine functional compound. So using Tetraethylenepentamine (TEPA) as an example: Mwt = 189, number of nitrogen atoms = 5 So 5 x 1000 x 56.1/189 = 1484. So the Amine Value of TEPA = 1484
The molecular formula C 2 H 6 O 2 (molar mass: 62.07 g/mol, exact mass: 62.03678 u) may refer to: Ethylene glycol (ethane-1,2-diol) Ethyl hydroperoxide; Methoxymethanol;