150224-24-1

Basic information

• Product Name: 1,2,3,5,8-pentachloronaphthalene
• Synonyms: 1,2,3,5,8-Pentachloronaphthalene; Naphthalene, 1,2,3,5,8-pentachloro; naphthalene, 1,2,3,5,8-pentachloro-
• CAS NO: 150224-24-1
• Molecular Formula: C₁₀H₃Cl₅
• Molecular Weight: 300.3958
• Mol File: 150224-24-1.mol
• Article Data: 2

Chemical Properties

• Boiling Point: 374°C at 760 mmHg
• Flash Point: 186.8°C
• Density: 1.638g/cm³
• Vapor Pressure: 1.85E-05mmHg at 25°C
• Refractive Index: 1.671
• CAS DataBase Reference: 1,2,3,5,8-pentachloronaphthalene(CAS DataBase Reference)
• NIST Chemistry Reference: 1,2,3,5,8-pentachloronaphthalene(150224-24-1)
• EPA Substance Registry System: 1,2,3,5,8-pentachloronaphthalene(150224-24-1)

Safety Data

• Hazardous Substances Data: 150224-24-1(Hazardous Substances Data)

Usage

Molecular structure

Naphthalene molecule with five chlorine atoms attached.

Chemical classification

Polychlorinated organic compound.

Toxicity

Highly toxic.

Persistence

Persistent in the environment.

Natural occurrence

Not naturally occurring.

Synthesis

Synthesized for industrial applications.

Environmental classification

Persistent organic pollutant (POP).

Environmental contamination

Commonly found as a contaminant in the environment due to industrial processes and waste disposal.

Bioaccumulation

Known to bioaccumulate in the food chain.

Health effects

Linked to adverse health effects in humans and wildlife, including carcinogenicity and developmental toxicity.

Regulation

Efforts are being made to regulate and reduce the production and release of 1,2,3,5,8-pentachloronaphthalene into the environment.

Upstream product

• 191-07-1 Coronene 
• 190-26-1 ovalene 
• 227-09-8 1,2:8,9-dibenzopentacene 
• 191-24-2 Benzo[ghi]perylene 
• 198-55-0 PERYLENE 

Downstream Products

• 55720-43-9 1,4,6,7-tetrachloronaphthalene 

Relevant articles and documents

Emission factors and importance of PCDD/Fs, PCBs, PCNs, PAHs and PM 10 from the domestic burning of coal and wood in the U.K.

This paper presents emission factors (EFs) derived for a range of persistent organic pollutants (POPs) when coal and wood were subject to controlled burning experiments, designed to simulate domestic burning for space heating. A wide range of POPs were emitted, with emissions from coal being higher than those from wood. Highest EFs were obtained for particulate matter, PM10, (～ 10 g/kg fuel) and polycyclic aromatic hydrocarbons (～ 100 mg/ kg fuel for ΣPAHs). For chlorinated compounds, EFs were highest for polychlorinated biphenyls (PCBs), with polychlorinated naphthalenes (PCNs), dibenzo-p-dioxins (PCDDs) and dibenzofurans (PCDFs) being less abundant. EFs were on the order of 1000 ng/kg fuel for ΣPCBs, 100s ng/ kg fuel for ΣPCNs and 100 ng/kg fuel for ΣPCDD/Fs. The study confirmed that mono- to trichlorinated dibenzofurans, Cl1,2,3DFs, were strong indicators of low temperature combustion processes, such as the domestic burning of coal and wood. It is concluded that numerous PCB and PCN congeners are routinely formed during the combustion of solid fuels. However, their combined emissions from the domestic burning of coal and wood would contribute only a few percent to annual U.K. emission estimates. Emissions of PAHs and PM 10 were major contributors to U.K. national emission inventories. Major emissions were found from the domestic burning for Cl1,2,3DFs, while the contribution of PCDD/F-ΣTEQ to total U.K. emissions was minor.