Professional molten salt-grade potassium nitrate is the core medium for solar thermal power generation and industrial energy storage

Molten salt-grade potassium nitrate is a core component of high-performance heat transfer and storage media that is indispensable in solar thermal power generation and large-scale industrial energy storage systems. Compared with ordinary industrial-grade potassium nitrate, it has extremely strict requirements for purity, especially the content of impurities such as chloride ions.Selecting high-purity molten salt-grade potassium nitrate is the cornerstone for ensuring the safe, efficient and stable operation of your energy storage system.

What is molten salt-grade potassium nitrate?

Molten salt grade potassium nitrate is a high-purity potassium nitrate product, with the chemical formula KNO₃. It is specifically used for preparing multi-component mixed molten salts, which remain in a molten liquid state at high temperatures and can achieve high-temperature and high-efficiency heat energy transfer and storage under normal pressure

Why is purity so crucial?

Extremely low impurity content is the key. For instance, excessive chloride ions can severely corrode equipment and pipelines, shortening the system’s lifespan. Therefore, molten salt-grade potassium nitrate is subject to stricter enterprise standards or national standards to ensure its suitability for demanding energy storage environments.

Our core product advantages

The only EU REACH certification in entire China

The EU REACH certification is regarded as one of the strictest and most complex chemical management systems in the world. Obtaining this certification means:

• Compliance and safety: The ingredients of our products have undergone comprehensive assessment and registration, fully meeting the high standards of the European Union for human health and environmental safety.
• Unobstructed market access: Glass products made from our raw materials have a greater advantage in terms of chemical compliance when exported to the EU and many other international markets that recognize this standard, thus clearing significant trade barriers.
• The ultimate endorsement of quality，Choosing us means that the starting point of your supply chain is equipped with international-level quality and safety genes.

Outstanding ultra-high purity

The main content (KNO₃) is ≥ 99.9%, ensuring thermal and chemical stability

The content of key impurities is extremely low

Chloride ion (Cl⁻) < 40 ppm (better than the national standard requirements).The contents of carbonates, sulfates and various metal ions are all controlled at the ppm level to minimize the risk of corrosion and decomposition.

Outstanding craftsmanship and quality assurance

We adopt a one-step advanced production process to control impurities from the source.

A quality management system covering the entire process from “raw material procurement – production – inspection – sales” has been established, ensuring stable and reliable product quality

Parameter (Molten salt grade）

Application field

Solar Thermal power generation (CSP)

Molten salt-grade potassium nitrate is the core of the heat storage system in a solar thermal power station. It successfully solves the intermittent problem of renewable energy by absorbing and storing solar energy during the day and continuously releasing thermal energy at night or on cloudy days to generate electricity

Industrial energy storage and waste heat recovery

• It is used in scenarios such as peak shaving of thermal power and compressed air energy storage to enhance the stability of the power grid
• It is used as a high-temperature heat transfer medium in the chemical industry (such as melamine and alumina production) to recover industrial waste heat and improve energy utilization efficiency

High-end industrial manufacturing

• As a glass clarifying agent, it is used in the production of high-end glass products such as automotive lamp glass, optical glass and picture tube glass shells
• It is used in the metal heat treatment industry as a component of quenching salt baths

Packaging, Storage and Safety Instructions

• Packaging: 25 kilograms per bag
• Storage: Keep in a cool, dry and well-ventilated warehouse. Keep away from fire sources, heat sources and reducing substances.
• Safe Operation: During the operation of the molten salt system, the medium must be kept clean. It is strictly forbidden to come into contact with water, organic matter and reducing substances to avoid triggering violent chemical reactions.
• Strictly control the heating rate to avoid sudden cooling and heating of the system.

Why choose us?

• Quality benchmark: The key indicators of our products exceed national standards, providing stable supply directly for large-scale solar thermal projects.
• Technical Expertise: With years of in-depth industry experience, we possess strong R&D capabilities and mature production techniques.
• Stable supply: With two major production bases in the east and west, we have sufficient production capacity to ensure a continuous and stable global supply.
• Professional support: We offer comprehensive technical services ranging from molten salt selection, formula guidance to system operation suggestions.