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Molten Salt

Molten Salt

Molten Salt manufacturer and supplier in Mumbai, Kandla, Chennai, Kolkata, Visakhapatnam, Barka - Oman, Muscat, Fujairah, Dubai, Sharjah, Abudhabi, Ajman, Oman Muscat Barka, Canada, Nairobi Kenya, Uganda Africa, Bahrain


Salt inhibited with the corrosion inhibitor resulting corrosion protection, as well as efficient heat transfer. Heat Transfer Salt with the increased use of high-temperature operations, the chemical and petroleum process industries need an economical, efficient, heat transfer medium


Why use Heat Transfer molten salts?

Heat Transfer Salt extend the upper range of the temperature limits in which a liquid heat transfer media can be used.

Tag Identification

Temperature Range of Heat Transfer Salt?


Molten Salt  ( The sodium nitrate/potassium nitrate salt ) Can Operate  generally is used from 545 to 1049°F (285 to 565°C)


Benefit of Heat Transfer Salt Generally, nitrate salts provide a balance of wide operating range, thermal stability, corrosion performance and cost.



Advantage of the nitrate salts is corrosion performance . Nitrate salts are compatible with stainless steels up to 1049°F (565°C) and even carbon steel if the operating temperature is kept below 752°F (400°C). This makes them advantageous to use with common materials of construction to keep costs low. It is not advised to use yellow metals such as copper or brass with molten salts because they are not as compatible as steel at higher temperatures.


Now a days Uses of Molten Salts as a Heat Transfer Fluid and Thermal-Storage Medium is common. One of the most commonly used molten salts is a eutectic blend of sodium nitrate and potassium nitrate. 

Heat Transfer salts contains Nitrate  are stable and have low toxicity, but they are oxidizers. In the presence of fire or open flames, they can break down and liberate oxygen, providing a fuel source for the flame. Molten nitrate salts should be kept away from open flame, sparks and other sources of ignition. If proper precautions are taken, the salts should not pose any hazards.


Main Ingredients  :Salt Mixture with Corrosion Inhibitor

Inhibitors and





:6 %

Colour Bright:Yellow

Nitrite Content:7.5 to 8.5%

Chloride Content : 0.10% Max.

pH of solution:9.5 - 10.5


Solubility in water       :SOLUBLE

Melting Point      :Max 150 - 155 °C

Working Temp Range:155 – 540 Deg.C

Density @ 20 Deg.C:1160 Kg/m3

Reverse Alkalinity        :Minimm 15.0 ml

Vapour pressure   :.07 mbar at 20oC

Hear Transfer Salt TR:155

Skin absorption/irritation      :YES

TLV       Country    : 

Pollution category    1994      :III

Heat Transfer Salt kept in between steam and direct-fire heating.  Heat Transfer salt has low melting point  to create a molten salt bath also have high heat transfer rate and its proprietory blend of heat transfer salt is stable at high temperatures, and is non-corrosive to steel.  The salts are used for indirect heating and cooling or as quenching baths in the annealing of iron and steel.

Molten salt is salt that is solid at standard temperature and pressure (STP) but enters the liquid phase due to elevated temperature. A salt that is normally liquid even at STP is usually called a room temperature ionic liquid, although technically molten salts are a class of ionic liquids.


Molten salts have a variety of uses. Molten chloride salt mixtures are commonly used as baths for various alloy heat treatments, such as annealing and martempering of steel. Cyanide and chloride salt mixtures are used for surface modification of alloys such as carburizing and nitrocarburizing of steel.


Cryolite (a fluoride salt) is used as a solvent for aluminium oxide in the production of aluminium in the Hall-Héroult process. Fluoride, chloride, and hydroxide salts can be used as solvents in pyroprocessing of nuclear fuel. Molten salts (fluoride, chloride, and nitrate) can also be used as heat transfer fluids as well as for thermal storage. This thermal storage is commonly used in molten salt power plants.


Molten salts, sometimes referred to as salt melts, are a family of products used for a wide range of applications like high-temperature process heating, heat treating and annealing of steel, and thermal storage in solar thermal power plants. These salts are composed of fluoride, chloride, and nitrate salts.


Molten salt By Product Type


Binary Molten Salt

Ternary Molten Salt


Molten salt Applications Type


Thermal Energy Storage

Chemical Industry

Metallurgical Production




we provide a wide variety of effects on which many other industry sectors rely. Some of the categories of speciality chemicals are adhesives, agrichemicals, cleaning materials, colors, cosmetic additives, construction chemicals, elastomers, flavors, food additives, fragrances, industrial gases, lubricants, paints, polymers, surfactants, and textile auxiliaries. Other industrial sectors such as automotive, aerospace, food, cosmetics, agriculture, manufacturing, and textiles are highly dependent on such products.

Heat Transfer Salt with the increased use of high-temperature operations, the chemical and petroleum process industries need an economical, efficient, heat transfer medium that is between steam and direct-fire heating.  Sodium nitrite can be mixed with nitrate salts to create a molten salt bath.  It has a low melting point, high heat transfer rate, is stable at high temperatures, and is non-corrosive to steel.  The salts are used for indirect heating and cooling or as quenching baths in the annealing of iron and steel.

Heat Transfer Salt Molten salts are also used in applications of solar power plants (CSP), where the salt can store heat obtained from sunlight for long periods of time. Some of these CSP systems flow the salt directly through the receiver tubing, where sunlight hits a parabolic mirror and concentrates the sunlight to a tube in which the salt flows. 


Other systems may use molten salts for preheating natural gas lines or keeping reactors hot by using the molten salt in the jacket around a tank. Salts also have relatively high latent heat capacity — similar to many of the phase-change waxes that are used today — and are sometimes used in phase-change applications. When salts melt, they absorb large amounts of heat, and when they freeze, they release large amounts of heat. By utilizing this phenomenon, it is possible to create advanced thermal storage or temperature-regulating systems, depending on the process.

The molten salts most commonly used in heat transfer applications are the nitrate salts due to their low melting point, high operating temperature, thermophysical properties, low toxicity, low vapor pressure and corrosion performance.


The most common nitrate molten salts generally are a eutectic blend of sodium nitrate and potassium nitrate. Individual salts can be used, but by combining the two different salts together, the melting point is reduced. This allows for lower minimum operating temperatures and thus reduces the chance of freezeup. Sodium nitrate has a melting point of 584°F (307°C), and potassium nitrate has a melting point of 631°F (333°C). By mixing the two together, however, you can create a salt blend with a melting point of 431°F (222°C). This significantly expands the operational flexibility of the salt used in high temperature applications.



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