Tag Heptane

What are uses of n-Heptane? Where to buy n-Heptane?
n-Heptane extraction solvent.; It is mainly used as a standard for the determination of octane number. It can also be used as anesthetics, solvents and raw materials for organic synthesis; Used as analytical reagent and solvent; Used as analytical reagent, knock test standard of gasoline engine, reference substance and solvent for chromatographic analysis. The product can stimulate the respiratory tract and has anesthetic effect at high concentration. Flammable, the limit concentration of explosive mixture formed in the air is 1.0-6.0% (volume).; Biochemical research, protein sequence analysis. Determine ozone and triglyceride. Pesticide residue analysis. Spectral and fluorescence analysis. Standard fuel for determining the antiknock performance of gasoline.; n-Heptane CAS No. 142-82-5 can be used in biochemical research and protein sequence analysis. Determine ozone and triglyceride. Pesticide residue analysis. Spectral and fluorescence analysis. Standard fuel for determining the antiknock performance of gasoline. Heptane is used in labs as a reagent, a solvent, and for organic synthesis. Industrially, Heptane is used to manufacture various types of ink including printer ink, and stamp pad ink. Heptane is also used to produce cements, compounders, and hospital anesthetics.
If you would like to purchase n-Heptane, please send your inquiries via email to: info@junyuanpetroleumgroup.com or visit www.junyuanpetroleumgroup.com.

Friday, 22-JAN-22: There was no change in prices of Pentane, Hexane and Heptane series products today.

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N-HEPTANE

CAS No. 142-82-5

Definition

Heptane is an alkane hydrocarbon with the chemical formula CH3(CH2)8CH3. Heptane has 9 isomers, or 11 if enantiomers are counted. (Wikipedia)

Important Natural Compounds, Substances of Biological Interest, Food Toxin, Household Toxin, Industrial/Workplace Toxin, Natural Toxin, Plant Toxin

Description

N-Heptane is found in cardamom. Heptane is an alkane hydrocarbon with the chemical formula CH3(CH2)8CH3. Heptane has 9 isomers, or 11 if enantiomers are counted. (Wikipedia) N-Heptane belongs to the family of Acyclic Alkanes. These are acyclic hydrocarbons consisting only of n carbon atoms and m hydrogen atoms where m=2*n + 2.

Application: n-Heptane is a straight-chain alkane consisting of seven carbons that is widely used as a completely non-polar solvent. n-Heptane is sometimes chosen as a less toxic option to the traditional hexane in appropriate processes. In liquid form, n-Heptane is very easy to transport and store.

Compatibility: Heptane is incompatible with strong oxidizing agents. It should not be stored near ignition sources and avoid excessive heat and confined spaces. Please see SDS for full safety and compatibility information.

Packaging Options: Typically available in drums, Isotanks, and bulk. Contact us or ask your representative for further information.

Heptane Chemical Properties,Uses,Production

Chemical Properties

n-Heptane is a flammable liquid, present in crude oil and widely used in the auto- mobile industry. For example, as a solvent, as a gasoline knock testing standard, as automotive starter fl uid, and paraffi nic naphtha. n-Heptane causes adverse health effects in occupational workers, such as CNS depression, skin irritation, and pain. Other compounds such as n-octane (CH 3 (CH 2 ) 6 CH 3 ), n-nonane (CH 3 (CH 2 ) 7 CH 3 ), and n-decane (CH 3 (CH 2 ) 8 CH 3 ) have different industrial applications. Occupational workers exposed to these compounds also show adverse health effects. In principle, manage- ment of these aliphatic compounds requires proper handling and disposal to avoid health problems and to maintain chemical safety standards for safety to workers and the living environment.

Chemical Properties

n-Heptane is a clear liquid which is highly flammable and volatile with a mild, gasoline-like odor. The odor threshold is 40 547 ppm; also reported @ 230 ppm.

Physical properties

Clear, colorless, very flammable liquid with a faint, pleasant odor resembling hexane or octane. Based on a triangle bag odor method, an odor threshold concentration of 670 ppb_v was reported by Nagata and Takeuchi (1990).

Uses

Suitable for HPLC, spectrophotometry, environmental testing

Uses

As standard in testing knock of gasoline engines.

Uses

heptane is a solvent and viscosity-decreasing agent.

Definition

A colorless liquid alkane obtained from petroleum refining. It is used as a solvent.

Definition

heptane: A liquid straight-chainalkane obtained from petroleum,C₇H₁₆; r.d. 0.684; m.p. -90.6°C; b.p.98.4°C. In standardizing octanenumbers, heptane is given a valuezero.

Production Methods

Heptane is produced in refining processes. Highly purified heptane is produced by adsorption of commercial heptane on molecular sieves.

Synthesis Reference(s)

Tetrahedron Letters, 3, p. 43, 1962 DOI:10.1007/BF01499754

General Description

Clear colorless liquids with a petroleum-like odor. Flash point 25°F. Less dense than water and insoluble in water. Vapors heavier than air.

Air & Water Reactions

Highly flammable. Insoluble in water.

Reactivity Profile

HEPTANE is incompatible with the following: Strong oxidizers .

Hazard

Toxic by inhalation. Flammable, dangerous fire risk.

Health Hazard

VAPOR: Not irritating to eyes, nose or throat. If inhaled, will cause coughing or difficult breathing. LIQUID: Irritating to skin and eyes. If swallowed, will cause nausea or vomiting.

Fire Hazard

FLAMMABLE. Flashback along vapor trail may occur. Vapor may explode if ignited in an enclosed area.

Chemical Reactivity

Reactivity with Water No reaction; Reactivity with Common Materials: No reactions; Stability During Transport: Stable; Neutralizing Agents for Acids and Caustics: Not pertinent; Polymerization: Not pertinent; Inhibitor of Polymerization: Not pertinent.

Potential Exposure

n-Heptane is used in graphics, textiles, adhesives, and coatings; as an industrial solvent and in the petroleum refining process; as a standard in testing knock of gasoline engines.

Source

Schauer et al. (1999) reported heptane in a diesel-powered medium-duty truck exhaust at an emission rate of 470 g/km.
Identified as one of 140 volatile constituents in used soybean oils collected from a processing plant that fried various beef, chicken, and veal products (Takeoka et al., 1996).
Schauer et al. (2001) measured organic compound emission rates for volatile organic compounds, gas-phase semi-volatile organic compounds, and particle-phase organic compounds from the residential (fireplace) combustion of pine, oak, and eucalyptus. The gas-phase emission rate of heptane was 28.9 mg/kg of pine burned. Emission rates of heptane were not measured during the combustion of oak and eucalyptus.
California Phase II reformulated gasoline contained heptane at a concentration of 9,700 mg/kg.
Gas-phase tailpipe emission rates from gasoline-powered automobiles with and without catalytic converters were 1.82 and 268 mg/km, respectively (Schauer et al., 2002).

Environmental Fate

Biological. Heptane may biodegrade in two ways. The first is the formation of heptyl hydroperoxide, which decomposes to 1-heptanol followed by oxidation to heptanoic acid. The other pathway involves dehydrogenation to 1-heptene, which may react with water forming 1- heptanol (Dugan, 1972). Microorganisms can oxidize alkanes under aerobic conditions (Singer and Finnerty, 1984). The most common degradative pathway involves the oxidation of the terminal methyl group forming the corresponding alcohol (1-heptanol). The alcohol may undergo a series of dehydrogenation steps forming heptanal followed by oxidation forming heptanoic acid. The acid may then be metabolized by β-oxidation to form the mineralization products, carbon dioxide and water (Singer and Finnerty, 1984). Hou (1982) reported hexanoic acid as a degradation product by the microorganism Pseudomonas aeruginosa.
Photolytic. The following rate constants were reported for the reaction of hexane and OH radicals in the atmosphere: 7.15 x 10^-12 cm³/molecule?sec (Atkinson, 1990). Photooxidation reaction rate constants of 7.19 x 10^-12 and 1.36 x 10^-16 cm³/molecule?sec were reported for the reaction of heptane with OH and NO3, respectively (Sablji? and Güsten, 1990). Based on a photooxidation rate constant 7.15 x 10^-12 cm³/molecule?sec for heptane and OH radicals, the estimated atmospheric lifetime is 19 h in summer sunlight (Altshuller, 1991).
Chemical/Physical. Complete combustion in air yields carbon dioxide and water vapor. Heptane will not hydrolyze because it has no hydrolyzable functional group.

Shipping

UN1206 Heptanes, Hazard Class: 3; Labels: 3-Flammable liquid.

Incompatibilities

May form explosive mixture with air. Strong oxidizers may cause fire and explosions. Attacks some plastics, rubber and coatings. May accumulate static electric charges that can ignite its vapors.

Waste Disposal

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

eneral Information

• Metabolism: Volatile hydrocarbons are absorbed mainly through the lungs, and may also enter the body after ingestion via aspiration. (A600)
• Uses/Sources: Heptanes may be found in gasoline and are widely used as solvents. They are also sold as fuel for outdoor stoves. (L1289)
• Health Effects: Petroleum distillates are aspiration hazards and may cause pulmonary damage, central nervous system depression, and cardiac effects such as cardiac arrhythmias. They may also affect the blood, immune system, liver, and kidney. (A600, L1297)
• Symptoms: Heptane affects the central nervous system and may cause lightheadedness, giddiness, stupor, vertigo, incoordination, loss of appetite, nausea, and unconsciousness. Direct skin contact with heptane may cause pain, burning, and itching. (T29)
• Treatment: Treatment is mainly symptomatic and supportive. Gastric lavage, emesis, and the administration of activated charcoal should be avoided, as vomiting increases the risk of aspiration. (A600)
• Route of Exposure: Oral (T29) ; inhalation (T29) ; dermal (T29)

• Carcinogenicity: N-Heptane is found in gasoline, which is possibly carcinogenic to humans (Group 2B). (L135)
• Toxicity: LD50: 222 mg/kg (Intravenous, Mouse) (T14) LC50: 75 g/m3 over 2 hours (Inhalation, Mouse) (T14)

Product Details:

n-Heptane.
Synonyms & Trade Names: Heptane, normal-Heptane
CAS No. 142-82-5
RTECS No. MI7700000.
DOT ID & Guide. 1206 128.
Formula.: CH₃[CH₂]₅CH₃

Application: n-Heptane is a straight-chain alkane consisting of seven carbons that is widely used as a completely non-polar solvent.n-Heptane is sometimes chosen as a less toxic option to the traditional hexane in appropriate processes.In liquid form, n-Heptane is very easy to transport and store.

Compatibility: Heptane is incompatible with strong oxidizing agents.

1) n-Heptane: content > 99%, UN No: 1206, with colorless, tasteless, non-toxic environmental characteristics, product uses: this product is mainly used in pesticide intermediates, pharmaceutical intermediates, fine chemicals, etc., which can replace toluene, improve the purity of intermediate products.
2) n-Heptane: used in chemical reagents.
3) Industrial grade n-Heptane: content > 99%, CN No: 32006, with colorless, tasteless, non-toxic environmental characteristics, product use: This product is mainly used in pesticide intermediates, pharmaceutical intermediates, fine chemicals, etc., can replace toluene, improve the purity of intermediate products.
4) PVC special n-Heptane: content > 99%, used in chlor alkali industry thermal converter (Domestic Users: Inner Mongolia Yili Chemical Industry Co., Ltd., Inner Mongolia Haiji Chlor Alkali Chemical Co., Ltd., Henan Pingmei chlor alkali Co., Ltd., Shandong Binzhou Marine Chemical Co., Ltd.).

Product description
Heptane (n-Heptane), 99+%
CAS: 142-82-5
FORMULA: CH3(CH2)5CH3
For Research & Development Not for drug, human, animal, or food use Specifications:
Content of n-Heptane, w%, ≥99
Distillation range, primary distillation point, dry point (℃), ≥94 ≤99
Density (20 ℃), kg / m3, 650-690
Bromine index, MGBR / 100g, ≤100
Saybolt Colour, ≥+28
Sulfur content, mg/kg, ≤2
Micro aromatic hydrocarbon, ppm, ≤10
Water w/v%, ≤0.1
Nonvolatile content, w/v%, ≤0.005

n-Heptane, 99%
CAS No. 142-82-5

Product Details
Manufacturer : Junyuan Petroleum Group
Package Dimensions : 137kg steel drums, 16mt ISO Tank

Customer questions & answers:
n-Heptane synonyms, n-Heptane pronunciation, definition of n-Heptane. n. Any of several isomeric, volatile, colorless, highly flammable liquid hydrocarbons, C7H16, obtained in the fractional distillation of petroleum.
What is the formula for n-Heptane?
n-Heptane is the straight chain form of the hydrocarbon with the formula C7H16.
What is Heptanes?
Heptanes is a mixture of the isomers of n-heptane. It can include these different forms and the straight chain n-heptane (above). There are different configurations of the C7H16.
What is heptane used for?
Heptane is a water-insoluble hydrocarbon obtained by fractional distillation of petroleum characterized by its petrol-like odor and colorless nature. It is used in the manufacturing of paint and coating additives, adhesives, sealants, chemical intermediates and formulation solvents in industrial and consumer use.
What are the health effects of n-heptane?
The following acute (short-term) health effects may occur immediately or shortly after exposure to n-Heptane: * n-Heptanecan irritate the eyes, nose and throat. * Exposure can cause headache, lightheadedness, dizziness, lack of coordination and loss of consciousness. * Loss of appetite and/or nausea may occur.
What are the properties of heptane?
Structure and Properties of Heptane. Heptane is the name for the straight-chained saturated hydrocarbon with 7 carbon atoms and 16 hydrogen atoms. The 7 carbon atoms are connected in one long chain with no branches. It is said to be fully saturated because it contains no double bonds between carbons.

A solvent is a substance that dissolves a solute, resulting in a solution. A solvent is usually a liquid but can also be a solid, a gas, or a supercritical fluid. The quantity of solute that can dissolve in a specific volume of solvent varies with temperature. Major uses of solvents are in paints, paint removers, inks, dry cleaning. Specific uses for organic solvents are in dry cleaning, as paint thinners, as nail polish removers and glue solvents, in spot removers, in detergents and in perfumes. Water is a solvent for polar molecules and the most common solvent used by living things; all the ions and proteins in a cell are dissolved in water within the cell. Solvents find various applications in chemical, pharmaceutical, oil, and gas industries, including in chemical syntheses and purification processes.

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