8052-42-4

Basic information

• Product Name: ASPHALTUM
• Synonyms: ASPHALTUM;Asphalt;Bitumen;GILSONITE;asphalt(cut);asphalt,liquidmedium-curing;asphalt,liquidrapid-curing;asphalt,liquidslow-curing
• CAS NO: 8052-42-4
• Molecular Weight: 0
• EINECS: 232-490-9
• Product Categories: Industrial/Fine Chemicals;UVCBs-organic
• Mol File: 8052-42-4.mol
• Article Data: 0

Chemical Properties

• Melting Point: 54-173 °C
• Boiling Point: >371 °C
• Flash Point: <50°F
• Appearance: Black solid
• Density: 1.15~1.25
• CAS DataBase Reference: ASPHALTUM(CAS DataBase Reference)
• NIST Chemistry Reference: ASPHALTUM(8052-42-4)
• EPA Substance Registry System: ASPHALTUM(8052-42-4)

Safety Data

• RIDADR: 1999
• HazardClass: 3
• PackingGroup: III
• Hazardous Substances Data: 8052-42-4(Hazardous Substances Data)

Usage

Description

ASPHALTUM, also known as asphalt, is a dark liquid mixture of heavy hydrocarbon residues, including saturated and unsaturated hydrocarbons and aromatic hydrocarbons. It is a naturally occurring bitumen and is also produced as a petroleum byproduct. ASPHALTUM is composed of hydrocarbons and heterocyclic compounds containing N2, sulfur, and O2, with components varying in molecular weight from about 400 to 5000. It is thermoplastic and viscoelastic, behaving as a viscous fluid at high temperatures or over long loading times and as an elastic body at low temperatures or short loading times.

Uses

Used in Construction Industry:
ASPHALTUM is used as a cementing and waterproofing agent for road construction, roofing, and coating of construction materials. It is an inexpensive construction material that provides durability and protection.
Used in Paint and Coating Industry:
ASPHALTUM is used as a component in acid, alkali, and waterproof coatings, as well as in black varnishes, lacquers, baking enamels, and japans. It provides a durable and protective finish to various surfaces.
Used in Electrical Industry:
ASPHALTUM is used in wire-insulation compounds, providing insulation and protection to electrical wires and cables.
Used in Flooring Industry:
ASPHALTUM is used in the production of linoleum and floor tiles, offering a durable and waterproof flooring solution.
Used in Paving Industry:
ASPHALTUM is used in paving, providing a strong and durable surface for roads and other outdoor areas.
Used in Insulation Industry:
ASPHALTUM is used as an insulation material, offering thermal and acoustic insulation properties.
Used in Rubber Industry:
ASPHALTUM is used as a diluent in low-grade rubber compounds, improving the flexibility and workability of the rubber.
Used in Petroleum Industry:
ASPHALTUM is a possible source of gasoline, fuel oil, and metallurgical coke, contributing to the production of various petroleum products.
Industrial uses:
ASPHALTUM is used in various industries due to its variable consistency, ranging from a highly viscous fluid to a solid. It is derived from petroleum in commercial quantities by the removal of volatile components.
Chemical Properties:
ASPHALTUM fumes are flammable when hot and may contain hydrogen sulfide and human carcinogens, such as benzo(a)pyrene and dibenz(a,h)anthracene. Fumes are generated during the production or application of asphalt, a dark-brown to black cement-like substance manufactured by the vacuum distillation of crude petroleum oil.

Air & Water Reactions

Insoluble in water.

Reactivity Profile

ASPHALT burns readily when heated or ignited in the presence of air or oxygen. May be incompatible with strong oxidizing agents like nitric acid. Charring may occur followed by ignition. Mostly unreactive in other settings. Not affected by aqueous solutions of acids, alkalis, most oxidizing agents, and most reducing agents.

Hazard

Irritant, skin sensitizer.

Health Hazard

Acute exposure to asphalt fumes causes irritative effects. Certain extracts of asphalt have caused a carcinogenic skin response in experimental animals. The chemical composition of vapors and fumes from asphalt products is variable and depends on the crude petroleum source, type of asphalt, temperature, and extent of mixing.1 Therefore, the adverse effects from asphalt may also vary considerably depending on the source of exposure.

Fire Hazard

Flash point data for ASPHALTUM are not available; however ASPHALTUM is probably combustible.

Flammability and Explosibility

Notclassified

Safety Profile

Suspected carcinogen with experimental carcinogenic and tumorigenic data. A moderate irritant. May contain carcinogenic components. Combustible when exposed to heat or flame. To fight fire, use foam, CO2, or dry chemical.

Potential Exposure

Occupational exposure to asphalt fumes can occur during the transport, storage, production, handling, or use of asphalt. The composition of the asphalt that is produced is dependent on the refining process applied to the crude oil, the source of the crude oil and the penetration grade (viscosity) and other physical characteristics of the asphalt required by the consumer. The process for production of asphalt is essentially a closed-system distillation. Refinery workers are therefore potentially exposed to the fumes during loading of the asphalt for transport from the refinery during routine maintenance, such as leaning of the asphalt storage tanks, or during accidental spills. Most asphalt is used out of doors, in paving and roofing. The workers’ exposure to the fumes is dependent on environmental conditions, work practices, and other factors. These exposures are stated to be generally intermittent and at low concentrations. Workers are potentially exposed also to skin and eye contacts with hot, cut-back, or emulsified asphalts. Spray application of cut-back, or emulsified asphalts may involve respiratory exposure also.

Shipping

UN1999 Tars, liquid including road oils and cutback bitumens, Hazard Class: 3; Labels: 3-Flammable liquid.

Incompatibilities

Asphalt and bitumen dust may form explosive mixture with air. Note: Asphalt becomes molten at about 93 C. Asphalt burns readily when heated or ignited in the presence of air or oxygen. May be incompatible with strong oxidizing agents like nitric acid. Charring may occur followed by ignition. If heated sufficiently or ignited in the presence of air, oxygen or strong oxidizing agents, can burn exothermically. May be ignited by strong oxidizing agents. Mostly unreactive in other settings. Not affected by aqueous solutions of acids, alkalis, most oxidizing agents, and most reducing agents.

Waste Disposal

Dissolve or mix the material with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber. All federal, state, and local environmental regulations must be observed. Asphalt solids may be landfilled.