n-Heptane solvent
- ZhongShi
- Liaoning, China
- 7~10 days
- 20,000 tons / year
1. 1-Heptane solvent content can attain up to ≥98.5%–99.5%, varying based on whether the grade is industrial or laboratory.
2. n-Heptane solvent is characterized by the lowest RON (Research Octane Number), which is zero. It pairs with isooctane (RON=100) to make the standard reference system for fuels. It' s being extensively applied in the fuel testing industry.
3. N-Heptane 99% purity residue non-volatile is below 0.005% without significant residue.
The sources of the heptane batches heptane 142 and heptane 82 can hardly be known from the market information which is very complex. Purity standards and moisture controls by products from various suppliers have a big impact because it's unstable leading to bad repeatability of fuels calibration or other experiments, influencing the uniformity of testing results.
In order to guarantee a consistent and high quality product of the batches of normal heptane, a triple quality control system is followed, “factory inspection + warehousing re-inspection + CNAS laboratory sampling inspection”, along with supplying complete set of COA and MSDS documents will be our solution so that each production run meets purity standards and remains consistent in quality.
Common attributes:
Molecular Formula | C7H16 |
Molecular Weight | 100.20 g/mol |
CAS Number | 142-82-5 |
UN Number | UN 1206 |
Appearance | Colorless,transparent liquid |
Odor | Odor similar to gasoline |
Hazard Class | Flammable liquid (Class IB) |
Physicochemical properties
Density (20°C) | 0.679 – 0.684 g/cm³ (typical value approx. 0.683) |
Boiling Point | 97 – 98 ℃ |
Melting Point | -90 to -91℃ |
Flash Point (Closed Cup) | approx. -4℃ |
Autoignition Temperature | approx. 215℃ |
Vapor Pressure (20°C) | ~40 mmHg |
Vapor Density (Air=1) | 3.4 – 3.5 |
Water Solubility | virtually insoluble (<0.01 g/L) |
Solubility | soluble in organic solvents such as ether and chloroform |
Quality Indicators
Industrial-grade standard | Experimental-grade standard | |
n-Heptane content | ≥98.5% | ≥99.0% – 99.5% |
Other C7 isomers | ≤1.0–1.5% | ≤0.5% |
Non-volatile residue | ≤0.001–0.005% | ≤0.001% |
Moisture (Karl Fischer) | ≤0.01% | ≤0.005% |
Acidity (as H+) | Qualified | Qualified |
Appearance | Clear and transparent,free of suspended matter | Clear and transparent |
Safe Transportation:
n-Heptane is a Class 3 flammable liquid with a low flash point and high volatility. When it comes to this kind of dangerous chemical, we strictly follow the country's rules on handling dangerous chemicals and also comply with UN 1206 international transportation regulations. We carry out integrated safe transportation procedures to guarantee the safety and traceability of the chemical when it is being stored and transported. Every item is packaged evenly in hermetically sealed galvanized iron drums or drums made of steel for corrosive materials which are in line with UN certified standards. The capacity, in terms of weight of the drum, is 137 kg for each drum. Before leaving the warehouse each package is subject to tightness tests and inspection on looks to make sure there would be no loss of integrity, no leakage or damage to the package itself. In addition, we place hazard labels, UN numbers, product names, safety warning signs, etc. on each individual package to make sure that they meet the identification requirements for hazardous chemical transportation both domestically and internationally.
Export Management
Regarding document management, we provide complete compliance documentation for each batch of n-Heptane, including MSDS (Material Safety Data Sheet), COA (Confirmation of Account) quality inspection report, and UN Dangerous Goods Transport Declaration documents, ensuring compliance with domestic hazardous chemicals regulations and international transport requirements (such as IMDG Maritime Dangerous Goods Code), guaranteeing smooth customs clearance for export.
Original Factory Certification:
Certificate Numbers: ZM034125Q43615R0L, ZM034125E43616R0L, ZM034125S43617R0L
Certificate Holder: Our Long-Term Production Partner
Declaration: This certificate is held by our long-term production partner. Liaoyang Zhongshi Chemical Co., Ltd., as a supply chain and export service provider, is responsible for product quality verification, logistics coordination, and international trade services to ensure that the supplied products meet the certified production standards.
Upstream Laboratory and Technical Support Capabilities
Zhongshi Chemical relies on a research and testing platform jointly established with its upstream plants, equipped with high-end analytical instruments such as nuclear magnetic resonance (NMR), gas chromatography-mass spectrometry (GC-MS), scanning electron microscope (SEM), X-ray diffractometer (XRD), and supercritical carbon dioxide extraction equipment. The laboratory is also accredited by CNAS at the national level and has standardized testing and analytical facilities. In addition to the above, the laboratory is outfitted with more than 300 catalyst characterization and distillation experimental setups that are capable of validating processes conducting product analyses and applications testing. Through an instrument sharing platform, it can connect with over 3,000 research equipment resources from universities and research institutions, further enhancing its technical support capabilities.
Product Quality and Testing System
To ensure stable product quality, Sinopec Chemical implements a strict quality control system for n-Heptane. Products undergo standard testing before leaving the factory, a second re-inspection upon warehousing, and sampling testing in conjunction with a CNAS-accredited laboratory to ensure key indicators meet customer technical requirements. A complete batch traceability system is established for each batch of products, and COA, MSDS, and technical data files are available to meet the needs of international trade and industrial applications.
Product Supply and Stability Guarantee
Our company leverages a long-term, stable upstream chemical resource system and maintains continuous cooperative relationships with major domestic petrochemical enterprises to ensure a stable and reliable source of n-Heptane. In a parallel effort, we have developed a well-organized inventory management system that ensures reasonable stock levels. With the help of this system, we can easily accommodate unexpected orders without delay, as the demand fluctuation is taken care of, thereby effectively reducing the delivery time and allowing the customer's manufacturing process to continue seamlessly. Compared to regular purchase models based on order, our company has definitely a big lead in terms of stable supply and quick response.
Why Choose Us?
We have focused on n-heptane and related chemical solvent supply chain services for 15 years. We are not just a trading company, but a provider responsible for the entire supply chain management process from refineries to customer production lines, including quality control, logistics, and compliance services. Regarding sourcing, we have long-term partnerships with CNPC, Sinopec, and CNOOC, and are deeply integrated with three ISO-certified production bases, with an annual supply capacity of 20,000 tons. We maintain a 100-ton stockpile and support orders starting from 1 ton. Regular orders can be delivered within 7 days. Regarding quality control, our products originate from factories certified by ISO 9001/14001/45001 (certificate numbers: ZM034125Q43615R0L, ZM034125E43616R0L, ZM034125S43617R0L). Relying on a CNAS-accredited laboratory, we implement dual quality control: "factory inspection + outbound re-inspection," achieving batch consistency of over 99.9%. We provide complete COA, MSDS, and full-process traceability information. Our products have been exported to over 20 countries and support various packaging formats including drums, IBC, and ISO Tanks. Samples can be provided within 24 hours, and delivery is completed within 7 working days. We can also provide complete export documents such as dangerous goods packaging certificates, customs declarations, certificates of origin, and SGS reports in one go to ensure smooth customs clearance.
FAQ
Q1: Can n-Heptane be used for laboratory analysis?
Yes, we can provide industrial-grade or laboratory-grade products, and support COA and MSDS documents.
Q2: Does the product meet the octane rating testing standards?
Yes, n-Heptane is widely used in fuel testing as a standard reference material for RON=0.
Q3: What is the typical delivery time?
Regularly stocked products can be shipped quickly, generally within 1-3 days.
Q4: Do you support export?
Yes, we can provide complete hazardous chemical export documents and compliant packaging.
Q5: What are the packaging specifications?
Standard packaging is a galvanized iron drum, net weight 137kg/drum.
