Nomex

(C₁₄H₁₀N₂O₂)ₙ

IUPAC: Poly(m-phenylene isophthalamide)

CAS: 25035-37-4

Overview

Nomex is a heat-resistant aramid fiber used in firefighter gear, race car driver suits, and electrical insulation. It does not melt or drip when exposed to flame.

Composition

Element Symbol Atoms Atomic Mass
Hydrogen H 10 1.0080
Carbon C 14 12.0110
Nitrogen N 2 14.0070
Oxygen O 2 15.9990

Elemental Composition

H
Hydrogen ×10
4.2%
C
Carbon ×14
70.6%
N
Nitrogen ×2
11.8%
O
Oxygen ×2
13.4%

Uses

  • • Firefighter protective gear
  • • Race car driver suits
  • • Electrical insulation
  • • Aircraft components

Fun Facts

  • ✦ Does not melt, drip, or support combustion in air, carbonizing at 370°C instead

Structure

SMILES

C1=CC(=CC=C1C(=O)O)C(=O)O.C1=CC(=CC=C1N)N

Properties

Type
polymer
State
solid
Molar Mass
238.24 g/mol
Density
1.3800 g/cm³
Solubility
insoluble

Molecular Descriptors

Exact Mass
274.0954
TPSA
127.0 Ų
H-Bond Donors
4
H-Bond Acceptors
6
Rotatable Bonds
2
Heavy Atoms
20
Complexity
224.0

Related Compounds

Cellulose

(C₆H₁₀O₅)ₙ

Epoxy Resin DGEBA

C₂₁H₂₄O₄

Kevlar

(C₁₄H₁₀N₂O₂)ₙ

Nylon-6,6

(C₁₂H₂₂N₂O₂)ₙ

Phenol-Formaldehyde Resin

(C₇H₆O₂)ₙ

Polyacrylonitrile

(C₃H₃N)ₙ

Polycarbonate

(C₁₆H₁₄O₃)ₙ

Polyethylene

(C₂H₄)ₙ

Polyethylene Terephthalate

(C₁₀H₈O₄)ₙ

Polyhydroxybutyrate

(C₄H₆O₂)ₙ

Frequently Asked Questions

What is Nomex?
Nomex ((C₁₄H₁₀N₂O₂)ₙ) is a polymer compound with the IUPAC name Poly(m-phenylene isophthalamide).
What is the molecular weight of Nomex?
Nomex has a molar mass of 238.24 g/mol.
What state is Nomex at room temperature?
Nomex is a solid at room temperature.
Is Nomex organic or inorganic?
Nomex is classified as an inorganic compound.
What elements make up Nomex?
Nomex ((C₁₄H₁₀N₂O₂)ₙ) is composed of Hydrogen (H), Carbon (C), Nitrogen (N), Oxygen (O).