Precautions
Lanthanum
- History and Discovery. Lanthanum was discovered in the 19th century, this came precisely in 1838 by a Swedish chemist known as Carl Mustav Gosander at the Karolinska Institute in Stockholm.
- Lanthanum
- Occurrence. Lanthanum is not a rare metal. ...
- Physical Characteristics. ...
- Chemical Characteristics. ...
- Significance and Uses. ...
- Health Effects. ...
- Isotopes of Lanthanum. ...
What is the most common use for lanthanum?
The transition of a substance directly from the solid to the gas phase without passing through a liquid phase. Density is the mass of a substance that would fill 1 cm 3 at room temperature.
What is the normal phase of lanthanum?
what does lanthanum smell like; lanthanum in Examples From Wordnik. Using material mined in past years, Molycorp produces rare-earth elements such as lanthanum, which is used in oil refining, and cerium, used in glass polishing and automotive catalytic converters. A metal oxide complex called lanthanum strontium manganite is ferromagnetic in ...
What does lanthanum smell like?
What are the four new elements?
- Nihonium and symbol Nh, for the element 113,
- Moscovium and symbol Mc, for the element 115,
- Tennessine and symbol Ts, for the element 117, and.
- Oganesson and symbol Og, for the element 118.
What does the name lanthanum mean?
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What are the main uses for lanthanum?
Uses of LanthanumThe chemical Lanthanum is found in modern television sets, the energy saving lamps, fluorescent tubes, etc.It is used in the field of optics as lenses and radiation absorbing glasses.It is known to increase the resistivity and malleability of steel.More items...
How are lanthanides used in everyday life?
Lanthanide Uses Lanthanides are used in lamps, lasers, magnets, phosphors, motion picture projectors, and X-ray intensifying screens. A pyrophoric mixed rare-earth alloy called Mischmetall (50% Ce, 25% La, 25% other light lanthanides) or misch metal is combined with iron to make flints for cigarette lighters.
What are two uses of lanthanides?
The uses of lanthanides are:The alloys of lanthanides are used in the instrumental steels, stainless steels, heat resistance, and so on.Due to the extraordinary reducing property of lanthanides, they are used in metallothermic reactions.Thoria and ceria are mostly used in gas lamp materials.More items...
What is lanthanum found in?
1839Lanthanum / Discovered
How are lanthanides used in petroleum refining?
They have also been used to remove oxygen and sulfur impurities from systems. As catalysts (substances that speed up chemical reactions), the lanthanides are widely used in the oil refining industry since they speed up the conversion of crude petroleum into widely used consumer products such as gasoline.
What are lanthanides and actinides used for?
Lanthanides are used in optical devices (night vision goggles), petroleum refining, and alloys. Actinides are found primarily in applications where their radioactivity can be used to power devices such as cardiac pacemakers.
What are lanthanides and give two examples?
Lanthanides have an atomic number of 57-71. Two examples of lanthanide elements are Erbium or Er and Cerium or Ce. Lanthanides are used as catalysts in the production of petroleum and many synthetic products. These compounds are also used in lamps, lasers, magnets, phosphors, motion picture projectors etc.
What are the main sources of lanthanides?
Major sources of lanthanides are Monazite sand-composed of phosphates of thorium, cerium, neodymium and lanthanum; the phosphate portion of monazite contains small traces of other lanthanide ions and the only lanthanide that does not occur naturally is promethium, which is made artificially by nuclear reaction.
What are properties of lanthanides?
Properties of Lanthanide SeriesThey have a lustre and are silvery in appearance.They are soft metals and can even be cut with a knife.The elements have different reaction tendencies depending on basicity. ... Lanthanides can corrode or become brittle if they are contaminated with other metals or non-metals.More items...
Why is lanthanum used in batteries?
Lanthanum (La) is the most widely used REE in the manufacture of NiMH batteries due to its high hydrogen storage capacity, with concentrations ranging between 18 and 28 wt% depending on the anode chemistry (AB5 vs AB2 type).
What is the price of lanthanum?
The cost for lanthanum carbonate oral tablet, chewable 500 mg is around $336 for a supply of 90, depending on the pharmacy you visit....Oral Tablet, Chewable.QuantityPer unitPrice90 (9 x 10 each)$8.18$736.07
How much does lanthanum cost?
(Generic Fosrenol) The approximate retail price of Lanthanum Carbonate is usually around $1,190.99 per 10, 10 Tablets Chewable Tablet Chewable. Use a SingleCare Lanthanum Carbonate coupon to reduce the cost of Lanthanum Carbonate down to $257.25.
Overview
Lanthanum is used to lower high blood phosphate levels in people who are on dialysis due to severe kidney disease.
May Treat: Renal osteodystrophy with hyperphosphatemia
Brand Names: Fosrenol
Drug Class: Phosphate Binders
Availability: Prescription Required
Pregnancy: Consult a doctor before using
Lactation: Consult a doctor before using
- Before use, important to read the Medication Guide
- Take with meal(s) for better drug activity.
- Call Doctor right away if you get constipated
- Before use, important to read the Medication Guide
- Take with meal(s) for better drug activity.
- Call Doctor right away if you get constipated
- Tell Dr if you get severe nausea/vomiting/diarrhea
- Inform MD or pharmacist of medications you use.
- Lab tests may be ordered to monitor therapy
- For powder in packet products : Open & sprinkle contents on soft food and swallow. Do not store prepared mixture for later use.
- For tablet, chewable products : Chew medicine completely before swallowing.
Characteristics
Compounds
History
Occurrence and production
Lanthanum is a chemical element with the symbol La and atomic number 57. It is a soft, ductile, silvery-white metal that tarnishes slowly when exposed to air. It is the eponym of the lanthanide series, a group of 15 similar elements between lanthanum and lutetium in the periodic table, of which lanthanum is the first and the prototype. Lanthanum is traditionally counted among the rare earth elements. …
Applications
Lanthanum is the first element and prototype of the lanthanide series. In the periodic table, it appears to the right of the alkaline earth metal barium and to the left of the lanthanide cerium. Its placement has been disputed, but most who study the matter along with a 2021 IUPAC provisional report consider lanthanum to be best placed as the first of the f-block elements. The 57 electr…
Biological role
Lanthanum oxide is a white solid that can be prepared by direct reaction of its constituent elements. Due to the large size of the La ion, La2O3 adopts a hexagonal 7-coordinate structure that changes to the 6-coordinate structure of scandium oxide (Sc2O3) and yttrium oxide (Y2O3) at high temperature. When it reacts with water, lanthanum hydroxide is formed: a lot of heat is evolved in the reaction and a hissing sound is heard. Lanthanum hydroxide will react with atmos…
Precautions
In 1751, the Swedish mineralogist Axel Fredrik Cronstedt discovered a heavy mineral from the mine at Bastnäs, later named cerite. Thirty years later, the fifteen-year-old Wilhelm Hisinger, from the family owning the mine, sent a sample of it to Carl Scheele, who did not find any new elements within. In 1803, after Hisinger had become an ironmaster, he returned to the mineral with Jöns …