Solid phase
Official name
Cetrimonium bromide
Secondary names
Hexadecyl(trimethyl)ammonium bromide; Cetyltrimethylammonium bromide
CAS number
57-09-0
Type
Family
molecular solid
Class
mixed molecular solid
Compound type
organic molecular solid
Chemical composition
Formula
$CH_3(CH_2)_{15}N^+(CH_3)_3 \cdot Br^-$
Chemical formula
CH3(CH2)15(N+)(CH3)3.Br-
Elemental formula
C19 H42 Br N
Isotope mixture type
terrestrial abundance
2.0
  Formula Name Family Number min-max Mole fraction Isotope mole fraction State Relevance
$CH_3(CH_2)_{15}N^+(CH_3)_3 \cdot Br^-$ Cetrimonium bromide molecule 1 1.0 1 pure main
Chemical functions
  Function Number
$R-CH_3$ 4
$R-CH_2-R$ 15
$R_4 >\mid N^+$ 1
Chemical bonds
  Bond Number
$>\mid N^+ \cdot Br^-$ 1
$\geq C-H$ 42
$\geq C-C \leq$ 15
$\geq C-N^+\leq$ 4
Class
molecular solids with polar molecules (02)
Type
with polyatomic organic polar molecules (CnHm...) (02.01)
Group
mixed hydrocarbons (02.01.05)
Phase type
crystalline
Molar mass
364.45 $g/mol$
State NTP
solid
Phase transitions
Phase transition type Other phases Temperature - Pressure
solid-liquid liquid 237-243°C (510-516K)
Refringence type
unknown
Pure color
colorless
Color
white
Diaphaneity
translucent
Luster
waxy
Links