Welcome to FengYuan Metallurgical Materials Co., Ltd.

potassium and calcium are two most important high melting point

Potassium Periodic Table of the Elements Facts - …

Potassium Properties: Potassium''s melting point is 63.25°C, boiling point is 760°C, specific gravity is 0.862 (20°C), with a valence of 1. Potassium is one of the most reactive and electropositive of metals. The only metal that is lighter than potassium is lithium. The silvery white metal is soft (easily cut with a …

Sodium - Wikipedia

2019-4-21 · Sodium is a chemical element with syol Na (from Latin natrium) and atomic nuer 11. It is a soft, silvery-white, highly reactive metal. Sodium is an alkali metal, being in group 1 of the periodic table, because it has a single electron in its outer shell, which it readily donates, creating a positively charged ion—the Na+ ion. Its only

Choosing the Right Deicer - OxyChem Calcium Chloride

Calcium Chloride (CaCl 2) – Calcium chloride is the most widely used non-sodium chloride deicer. Its lowest effective temperature, -25°F (-32°C), is below that of other common deicers. Calcium chloride is a hygroscopic material that attracts moisture from its surroundings, speeding the creation of brine to give melting action a fast start.

Feldspar – (Potassium)

2015-2-27 · • Ceramics: In the manufacture of ceramics, feldspar is the second most important ingredient after clay. Feldspar does not have a strict melting point, since it melts gradually over a range of temperatures. This greatly facilitates the melting of quartz and clays and, through appropriate mixing, allows modulations of this important step of

Chemistry_coursebook_1_Ch_1_-9_answers_

2012-5-19 · etc. Sodium hydroxide ? manufacture of soap, extraction of aluminium, etc. 25. ? Sea water is an important source of = Na = Cl – + – Sodium chloride has a high

US7588694B1 - Low-melting point inorganic nitrate …

A low-melting point, heat transfer fluid made of a mixture of four inorganic nitrate salts: 9-18 wt % NaNO 3 , 40-52 wt % KNO 3 , 13-21 wt % LiNO 3 , and 20-27 wt % Ca(NO 3 ) 2 . These compositions can have liquidus temperatures less than 100 C; thermal stability limits greater than 500 C; and viscosity in the range of 5-6 cP at 300 C; and 2-3 cP at 400 C.

Carbide | chemical compound | Britannica

The most important of these compounds is calcium carbide, CaC 2. The primary use for calcium carbide is as a source of acetylene for use in the chemical industry. Calcium carbide is synthesized industrially from calcium oxide (lime), CaO, and carbon in the form of coke at about 2,200 °C (4,000 °F). Pure calcium carbide has a high melting

Does potassium have a low melting point

Most metals do not have a low melting point. Only mercury has a really low melting point. The atomic nuer of potassium is 19 and calcium''s is 20. Potassium''s atomic mass is 39.098 and

Melting point of calcium carbonate

Potassium''s atomic mass is 39.098 and calcium is 40.08. these two elements are very different. Potassium being an Alkaline Metal while calcium is an Alkaline Earth Metal. The melting point for

It''s Elemental - The Element Potassium

Potassium forms an alloy with sodium (NaK) that is used as a heat transfer medium in some types of nuclear reactors. Potassium forms many important compounds. Potassium chloride (KCl) is the most common potassium compound. It is used in fertilizers, as a …

Facts About Calcium - Live Science: The Most …

2016-10-27 · Calcium is nature''s most renowned structural material. Indeed, calcium is a necessary component of all living things and is also abundant in many non-living things, particularly those that help

What does ''high melting point'' mean? - Quora

What does "high melting point" mean? A material that is said to have a high melting point is usually something that can absorb more heat before softening and liquifying that would be expected for the type of material that it is.

Chemical elements listed by melting point - Lenntech

Chemical elements listed by melting point The elements of the periodic table sorted by melting point. click on any element''s name for further chemical properties, environmental data or health effects.. This list contains the 118 elements of chemistry.

US7588694B1 - Low-melting point inorganic nitrate …

A low-melting point, heat transfer fluid made of a mixture of four inorganic nitrate salts: 9-18 wt % NaNO 3 , 40-52 wt % KNO 3 , 13-21 wt % LiNO 3 , and 20-27 wt % Ca(NO 3 ) 2 . These compositions can have liquidus temperatures less than 100 C; thermal stability limits greater than 500 C; and viscosity in the range of 5-6 cP at 300 C; and 2-3 cP at 400 C.

The Thermal Stability of Molten Lithium-Sodium …

The Thermal Stability of Molten Lithium-Sodium-Potassium Carbonate and the Influence of Additives on the Melting Point with low melting point and high thermal stability, which could be

Potassium Carbonate as a Salt for Deep Eutectic Solvents

2015-2-14 · point of 18.2 C. In Deep Eutectic Solvents, Glycerol has been successfully used as a hydrogen bond donor with Choline Chloride to form DES by several research groups [15]-[16]. In this study, potassium carbonate and glycerol were used in different molar ratios to make a new DES system. The important physical properties of density, viscosity

Chemical Elements - Melting Point

2012-10-20 · An up-to-date periodic table with detailed but easy to understand information

Calcium - Element information, properties and uses

Melting point: 842°C, 1548°F, 1115 K Hard water is the term used for water with a high proportion of calcium and magnesium (2 plus) ions. The calcium usually enters the water as it flows past either calcium carbonate, from limestone and chalk, or calcium sulfate, from other mineral deposits. Calcium is also very important in helping

What Are the Chemical and Physical Properties of …

Calcium is a metallic element that has the atomic nuer 20. Some of its most important chemical properties are that it has 10 isotopes, an atomic mass of 50.08 grams per mole and a melting point …

Calcium Silie | Encyclopedia

2005-9-29 · Calcium SilieOVERVIEWThe term calcium silie (KAL-see-um SILL-i-kate) applies to a nuer of related compounds consisting of calcium, silicon, and oxygen, all of which tend to occur in a hydrated form. The most common of these forms is calcium metasilie, for which data are given above. Calcium silies with the formulas Ca2SiO4 and Ca3SiO5 are also well known.

10 Potassium Facts (K or Atomic Nuer 19) - …

The most abundant isotope is K-39, which accounts for 93.3% of the element. The atomic weight of potassium is 39.0983. Potassium metal has a density of 0.89 grams per cubic centimeter. The melting point of potassium is 63.4 o C or 336.5 K and its boiling point is 765.6 o C or 1038.7 K. This means potassium is a solid at room temperature.

sodium | Facts, Uses, & Properties | Britannica

Sodium sulfate, Na 2 SO 4, is a white crystalline solid or powder employed in the manufacture of kraft paper, paperboard, glass, and detergents and as a raw material for the production of various chemicals.It is obtained either from deposits of the sodium sulfate minerals mirabilite and thenardite or synthetically by the treatment of sodium chloride with sulfuric acid.

Calcium Silie | Encyclopedia

2005-9-29 · Calcium SilieOVERVIEWThe term calcium silie (KAL-see-um SILL-i-kate) applies to a nuer of related compounds consisting of calcium, silicon, and oxygen, all of which tend to occur in a hydrated form. The most common of these forms is calcium metasilie, for which data are given above. Calcium silies with the formulas Ca2SiO4 and Ca3SiO5 are also well known.

Calcium dichloride | CaCl2 - PubChem

Calcium Chloride is a crystalline, white substance, soluble in water, Calcium Chloride is the chloride salt of calcium, a bivalent metallic element with many crucial biological roles. Calcium is a major constituent of the skeleton but plays many roles as an intracellular and plasma ion as well. In medicine, calcium chloride is also used as a 10% solution in injection, for calcium replenishment.

Chemical elements listed by melting point - Lenntech

Chemical elements listed by melting point The elements of the periodic table sorted by melting point. click on any element''s name for further chemical properties, environmental data or health effects.. This list contains the 118 elements of chemistry.

Choosing the Right Deicer - OxyChem Calcium Chloride

Calcium Chloride (CaCl 2) – Calcium chloride is the most widely used non-sodium chloride deicer. Its lowest effective temperature, -25°F (-32°C), is below that of other common deicers. Calcium chloride is a hygroscopic material that attracts moisture from its surroundings, speeding the creation of brine to give melting action a fast start.

Drying of Solvents and Laboratory Chemicals - …

2  · (Prepared by melting boric acid in an air oven at a high temperature, cooling in a desicor, and powdering.) Mainly used for drying formic acid. Calcium chloride (anhydrous) Cheap. Large capacity for absorption of water, giving the hexahydrate below 30°C, but is fairly slow in action and not very efficient.

Carbide | chemical compound | Britannica

The most important of these compounds is calcium carbide, CaC 2. The primary use for calcium carbide is as a source of acetylene for use in the chemical industry. Calcium carbide is synthesized industrially from calcium oxide (lime), CaO, and carbon in the form of coke at about 2,200 °C (4,000 °F). Pure calcium carbide has a high melting

Related links