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Elementary Substances

Elementary Substances is a pure substance composed of the same element, so the mixture does not belong to elementary substances. When an element exists in elementary substances, it is called the free state of the element. It is composed of atoms of an element, which exists stably in free form, such as oxygen, chlorine, iron and so on. Elementary Substances and element are two different concepts. An element is a general term for atoms with the same number of nuclear charges (protons). An element may have several kinds of elementary substances, for example, oxygen element has four kinds of elementary substances: oxygen, ozone, tetraoxygen and red oxygen. Although either of these substances is elementary substances, because they are pure substances made up of the same elements, oxygen and ozone together are not pure substances, they are a mixture of the same elements. Elementary Substances is divided into monatomic molecules, diatomic molecules and polyatomic molecules. Elementary Substances is composed of one element, copper and iron are elementary substances, but calcium carbonate (CaCO3) is not, because calcium carbonate is composed of C, Ca, O three elements, so it is not elementary substances, it is a compound, the compound is also pure. And the same element can be combined in different ways (that is, allotrope). Such as C, it can be composed of graphite, diamond and so on. if they are mixed together, it cannot be said to be pure, it can only be a mixture of the same element.

Boron; 7440-42-8 structural formula
  • Boron is a trivalent, nonmetallic element that occurs abundantly in the evaporite ores, borax and ulexite. Boron is never found as a free element on Earth. Boron as a crystalline is a very hard, black material with a high melting point, and exists in many polymorphs. Boron has several forms, the mos..
  • CAS No: 7440-42-8
  • Molecular Weight: 10.81
  • Molecular Formula:B
  • Density:2.34 g/mL at 25 °C(lit.)
  • Boiling Point:3650℃
Encyclopedia Safety and Handling MSDS Synthesis Route 259 Suppliers Request For Quotation
Boron carbide; 12069-32-8 structural formula
Boron carbide
  • DryPowder; DryPowder, PelletsLargeCrystals; OtherSolid
  • CAS No: 12069-32-8
  • Molecular Weight: 55.25
  • Molecular Formula:CB4
  • Density:2.51 g/mL at 25 °C(lit.)
  • Boiling Point:3500°C
  • Flash Point:°C
Encyclopedia Safety and Handling MSDS NMR Spectrum 134 Suppliers Request For Quotation
Ruthenium; 7440-18-8 structural formula
  • Ruthenium is a chemical element with symbol Ru and atomic number 44. Ruthenium is a rare transition metal belonging to the platinum group of the periodic table. Solid Ruthenium atom is an iron group element atom and a platinum group metal atom.|A hard, brittle, grayish-white rare earth metal with a..
  • CAS No: 7440-18-8
  • Molecular Weight: 101.07
  • Molecular Formula:Ru
  • Density:1.025 g/mL at 25 °C
  • Boiling Point:3900 °C(lit.)
  • Flash Point:134.3°C
Encyclopedia Safety and Handling MSDS Synthesis Route 169 Suppliers Request For Quotation
Nickel(II) oxide; 1313-99-1 structural formula
Nickel(II) oxide
  • CAS No: 1313-99-1
  • Molecular Weight: 74.69
  • Molecular Formula:NiO
  • Density:6.67 g/mL at 25 °C(lit.)
  • Boiling Point:°Cat760mmHg
  • Flash Point:°C
Encyclopedia Safety and Handling MSDS Synthesis Route 224 Suppliers Request For Quotation
Fiber Glass Wool; 65997-17-3 structural formula
Fiber Glass Wool
  • generally sold as a wool-like material Fibrous glass is the name for a manufactured fiber in which the fiber-forming substance is glass. Glasses are a class of materials made from silicon dioxide with oxi des of various metals and other elements, which solidify from the molten state without crystall..
  • CAS No: 65997-17-3
  • Molecular Weight: 158.038
  • Molecular Formula:CaNaO4P
  • Density:1.1 g/mL at 25 °C(lit.)
  • Boiling Point:1000 °C
  • Flash Point:°C
Encyclopedia Safety and Handling 80 Suppliers Request For Quotation
Indium; 7440-74-6 structural formula
  • Indium is a rare, lustrous silver-white metal with atomic number 49 and In as its atomic symbol. It is widely distributed in the Earth’s crust in minute quantities (0.1 ppm) and is also found in the hydrosphere. Indium belongs to group IIIA in the periodic table. It was found and spectroscopically ..
  • CAS No: 7440-74-6
  • Molecular Weight: 114.82
  • Molecular Formula:In
  • Density:7.3
  • Boiling Point:2000℃
  • Flash Point:2072°C
Encyclopedia Safety and Handling MSDS 202 Suppliers Request For Quotation
LITHIUM NIOBATE; 12031-63-9 structural formula
  • In microwave technology, it is used for Q-switching, photoelectric modulation, frequency doubling, and optical parametric oscillation; LN crystal doped with a certain amount of iron and other metal impurities can be used as a holographic recording medium material.?It is also used in phase mediators,..
  • CAS No: 12031-63-9
  • Molecular Weight: 147.84558
  • Molecular Formula:LiNbO3
  • Density:4.65
  • Boiling Point:°Cat760mmHg
  • Flash Point:°C
Encyclopedia Safety and Handling MSDS 45 Suppliers Request For Quotation
Nickel; 7440-02-0 structural formula
  • silver white, hard, malleable metal chunks or grey powder RANEY NICKEL is a hard, ductile, magnetic metal with a silver-white color.
  • CAS No: 7440-02-0
  • Molecular Weight: 58.693
  • Molecular Formula:Ni
  • Density:6.97
  • Boiling Point:2831° F (NIOSH, 2016)
Encyclopedia Safety and Handling MSDS Synthesis Route 320 Suppliers Request For Quotation
1-BOC-4-(4-FLUORO-PHENYLAMINO)-PIPERIDINE; 288573-56-8 structural formula
  • CAS No: 288573-56-8
  • Molecular Weight: 294.36
  • Molecular Formula:C16H23FN2O2
  • Density:1.159±0.06 g/cm3(Predicted)
  • Boiling Point:400.4±40.0 °C(Predicted)
Encyclopedia Safety and Handling MSDS Synthesis Route 1367 Suppliers Request For Quotation
Metonitazene; 14680-51-4 structural formula
  • CAS No: 14680-51-4
  • Molecular Weight: 382.46
  • Molecular Formula:C21H26N4O3
  • Density:1.2±0.1 g/cm3 (Predicted)
  • Boiling Point:571.8±45.0 °C at 760 mmHg (Predicted)
  • Flash Point:299.6±28.7 °C (Predicted)
Encyclopedia Safety and Handling 908 Suppliers Request For Quotation
1-Ethyl-3-methylimidazolium hexafluorophosphate; 155371-19-0 structural formula
1-Ethyl-3-methylimidazolium hexafluorophosphate
  • 1-Ethyl-3-methylimidazolium hexafluorophosphate
  • CAS No: 155371-19-0
  • Molecular Weight: 256.12900
  • Molecular Formula:C6H11F6N2P
  • Density:1.48 g/cm3
  • Boiling Point:°Cat760mmHg
  • Flash Point:°C
Encyclopedia Safety and Handling MSDS Synthesis Route 76 Suppliers Request For Quotation
1-ETHYL-3-METHYLIMIDAZOLIUM ETHYL SULFATE; 342573-75-5 structural formula
  • Light yellow liquid Liquid
  • CAS No: 342573-75-5
  • Molecular Weight: 236.29
  • Molecular Formula:C8H16N2O4S
  • Density:1.24
  • Boiling Point:°Cat760mmHg
  • Flash Point:°C
Encyclopedia Safety and Handling MSDS Synthesis Route 33 Suppliers Request For Quotation
3',6'-Dihydroxy-6-isothiocyanatospiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one; 3326-31-6 structural formula
  • 6-Fluorescein isothiocyanate(6-FITC) is a derivative of fluorescein used in wide-ranging applications including flow cytometry.
  • CAS No: 3326-31-6
  • Molecular Weight: 389.38
  • Molecular Formula:C21H11NO5S
  • Density:1.54±0.1 g/cm3(Predicted)
  • Boiling Point:722.7±60.0 °C(Predicted)
  • Flash Point:388.7±32.9 °C
Encyclopedia Safety and Handling MSDS 17 Suppliers Request For Quotation
Silver; 7440-22-4 structural formula
  • The metal silver is described as a white, lustrous solid. In its pure form it has the highest thermal and electrical conductivity and lowest contact resistance of all metals. With the exception of gold, silver is the most malleable metal. Silver (symbol Ag) is one of the basic elements present in th..
  • CAS No: 7440-22-4
  • Molecular Weight: 107.8682
  • Molecular Formula:Ag
  • Density:1.135 g/mL at 25 °C
  • Boiling Point:2212℃
  • Flash Point:232 °F
Encyclopedia Safety and Handling MSDS 244 Suppliers Request For Quotation
Benzalacetone; 122-57-6 structural formula
  • It is colorless crystals. It has a coumarin odor. It is soluble in alcohol, ether, benzene and chloroform, slightly soluble in water and petroleum ether. Yellow Solid 4-Phenyl-3-buten-2-one has a sweet, floral, creamy, pungent odor reminiscent of coumarin and rhubarb with a sweet, pungent flavor. It..
  • CAS No: 122-57-6
  • Molecular Weight: 146.19
  • Molecular Formula:C10H10O
  • Density:1.038
  • Boiling Point:260-262 °C(lit.)
  • Flash Point:150 °F
Encyclopedia Safety and Handling MSDS NMR Spectrum Synthesis Route 163 Suppliers Request For Quotation
Mordant Yellow 1; 584-42-9 structural formula
Mordant Yellow 1
  • orange to brown powder
  • CAS No: 584-42-9
  • Molecular Weight: 309.213
  • Molecular Formula:C13H8N3NaO5
  • Density:2.4300
  • Boiling Point:479.1°Cat760mmHg
  • Flash Point:243.5°C
Encyclopedia Safety and Handling MSDS NMR Spectrum 80 Suppliers Request For Quotation
O-(4-Hydroxy-3-iodophenyl)-3,5-diiodo-L-tyrosine; 6893-02-3 structural formula
  • 3,3',5-Triiodo-L-thyronine is a potent agonist of thyroid hormone receptors TRα and TRβ with Kis of 2.3 nM.
  • CAS No: 6893-02-3
  • Molecular Weight: 650.97349
  • Molecular Formula:C15H12I3NO4
  • Density:2.387
  • Boiling Point:602.051°C at 760 mmHg
  • Flash Point:317.909°C
Encyclopedia Safety and Handling MSDS NMR Spectrum Synthesis Route 114 Suppliers Request For Quotation
Brominated polystyrene; 88497-56-7 structural formula
Brominated polystyrene
  • Bromopolystyrene is flame retardant provides outstanding thermal stability and electrical performance. It is particularly suitable for engineering plastic applications such as polyesters (PET, PBT, PCT) and polyamides (nylons). Bromine fuctionalized polystyrene resin serves as starting material for ..
  • CAS No: 88497-56-7
  • Molecular Weight: 213.118
  • Molecular Formula:C10H13Br
  • Density:1.237
  • Boiling Point:238.6°C at 760 mmHg
  • Flash Point:97.6°C
Encyclopedia Safety and Handling MSDS 109 Suppliers Request For Quotation
Tin; 7440-31-5 structural formula
  • Tin is a ductile, malleable, lustrous solid with a gray to almost silver-white color. Tin forms covalent bonds with carbon forming a variety of organometallic or organotin compounds, and the physical and chemical properties differ for various compounds such as Tin II (SnO) and Tin IV (SnO2), organot..
  • CAS No: 7440-31-5
  • Molecular Weight: 118.69
  • Molecular Formula:Sn
  • Density:7.3
  • Boiling Point:2270℃
  • Flash Point:2270°C
Encyclopedia Safety and Handling MSDS 228 Suppliers Request For Quotation
Lead; 7439-92-1 structural formula
  • Occurring naturally in the earth’s crust, lead is a heavy bluish-gray metal that is lustrous when freshly cut. It is rarely found as a pure metal but rather is complexed with other elements to form lead compounds. Found in ore with copper, zinc, and silver, lead is found in mineral form as galena (..
  • CAS No: 7439-92-1
  • Molecular Weight: 207.2
  • Molecular Formula:Pb
  • Density:1.00?g/mL?at 20?°C
  • Boiling Point:621.5° F (NTP, 1992)
Encyclopedia Safety and Handling MSDS Synthesis Route 185 Suppliers Request For Quotation
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