SoleChem

Acenaphthene

CAS
83-32-9
EC
201-469-6
Mol. Weight
154.21 g/mol

Description

Acenaphthene (CAS 83-32-9) is a polycyclic aromatic hydrocarbon used as a chemical intermediate and monomer building block across pharmaceutical synthesis and polymer manufacturing.

It serves as a precursor and process chemical where a fused-ring aromatic scaffold is required in the production chain. In pharmaceutical manufacturing, it functions as a synthetic intermediate.

This material is essential in the preparation of active compounds requiring a naphthalene-derived carbon framework. Dye and pigment producers use it as a starting material for synthesizing colorants.

These naphthalimide-based colorants are frequently applied in printing inks and packaging coatings. In polymer chemistry, it acts as a monomer or co-monomer in specialty resin systems.

Controlled aromatic content influences thermal and mechanical performance in these systems. It also supports research-scale synthesis where a defined polycyclic aromatic building block is needed.

Acenaphthene is supplied as a white to pale yellow crystalline solid. Standard commercial grades include technical-grade material for industrial synthesis applications and higher-purity grades.

These grades are available to meet pharmaceutical intermediate requirements. Packaging typically ranges from kilogram-scale laboratory quantities to bulk drum supply for industrial procurement.

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Physical Properties

Melting Point 95 °C
Boiling Point 279 °C @ Press: 760 Torr
Density 1.0242 g/cm³ @ Temp: 90 °C
Flash Point 135 °C
Appearance Acenaphthene is a white combustible, crystalline solid. PAHs are compounds containing multiple benzene rings and are also called polynuclear aromatic hydrocarbons
Color brown-beige
Form crystalline
Water Solubility 0.000347 g/100 mL
Vapor Pressure 10 mm Hg ( 131 °C)
Refractive Index 1.6048
Log P 4.04 at 30℃ and pH5-8

Safety & Handling (Learn More)

Warning GHS07 GHS09 GHS08
Hazard Statements
H315 Causes skin irritation
H319 Causes serious eye irritation
H335 May cause respiratory irritation
H350 May cause cancer
H373 May causes damage to organs through prolonged or repeated exposure
H400 Very toxic to aquatic life
H410 Very toxic to aquatic life with long lasting effects
Precautionary Statements
P203 Obtain, consult and follow expert instructions for use.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash … thoroughly after handling.
P271 Use only outdoors or in a well-ventilated area.
P273 Avoid release to the environment.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P318 IF exposed or concerned, get medical advice.
P319 Get medical advice/attention if you feel unwell.
P321 Specific treatment (see … on this label).
P391 Collect spillage.
P405 Store locked up.
P501 Dispose of contents/container in accordance with local regulations.
P264+P265 Wash … thoroughly after handling.
P302+P352 IF ON SKIN: Wash with plenty of water.
P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P332+P317 Get emergency medical help.
P337+P317 If eye irritation persists: Get medical advice/attention. Get emergency medical help.
P362+P364 Take off contaminated clothing and wash it before reuse.
P403+P233 Store in a well-ventilated place. Keep container tightly closed.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code 29029080
UN Number 3077
ADR Class 9
Packing Group III
Storage Class 11 - Combustible Solids
WGK (Germany) 3

Documentation

Other Names

peri-ethylenenaphthalene|1,2-Dihydroacenaphthylene|1,8-Ethylenenaphthalene|Acenaphthylene, 1,2-dihydro-|1,8-Dihydroacenaphthalene

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