Strontiumnitrat

Strontiumnitrat · Strontium nitate · STRONTIUM NITRATE · nitratedestrontium · strontiumdinitrate · StrontiumNitrateEl · StrontiumNitrateAr · Strontiumnitrate,98+%

https://huagongshe.com/de/chemical/24848

Identifikatoren & physikalische Daten

CAS No.	10042-76-9
Summenformel	N2O6Sr
Durchschnittliche Molmasse	211,63 g/mol
Monoisotopische Masse	211,88124782 g/mol
SMILES	O=[N+]([O-])[O-].O=[N+]([O-])[O-].[Sr+2]
InChIKey	DHEQXMRUPNDRPG-UHFFFAOYSA-N
PubChem CID	24848
ChEMBL	CHEMBL2219742
EC No.	233-131-9
DTXSID	DTXSID9064924
Lokaler Name	Strontiumnitrat

Chemische & physikalische Eigenschaften

Polarare Oberfläche (TPSA)	126
H-Brücken-Donoren	0
H-Brücken-Akzeptoren	6
Frei drehbare Bindungen	0
Schwere Atome	9
Formalladung	0
Komplexität	18,8
Stoffklassen	Metals -> Metals, Inorganic Compounds
pH	AQ SOLN IS NEUTRAL5-7 (50g/l, H2O, 20℃)
Dichte	2.98 (USCG, 1999) - Denser than waterwill sink2.99 g/cu-cm2.99 @25 °C
Color/Form	WHITE GRANULES OR POWDERColorless cubic crystals
Löslichkeit	70.9 g/100 ml water at 18 °C, 100 g/100 ml water at 100 °C401 G/L OF WATER @ 0 °C1 KG/L WATER @ 90 °CSlightly sol in alcohol or acetone.0.012 g/100 ml absolute alcohol660g/l660 g/L (20 ºC)
Siedepunkt	1193 °F at 760 mmHg (USCG, 1999)645 °C645 °C @760 [mm Hg]
Decomposition	When heated to decomposition it emits ... fumes of /nitrogen oxides/.
Schmelzpunkt	1058 °F (USCG, 1999)570 °C570 °C (lit.)
Physical Description	Strontium nitrate appears as a white crystalline solid. Noncombustible but accelerates burning of combustible materials. May explode if large quantities are involved in a fire or the combustible material is finely divided. May explode under prolonged exposure to heat or fire. Toxic oxides of nitrogen are produced in fires. Used in pyrotechnics, in medicine, and to make other chemicals.Dry PowderCBILarge CrystalsWhite solid[Merck Index] White odorless crystalline solid[MSDSonline]
Stability/Shelf Life	Anhydrous material is normally stable but starts to decompose @ about 500 °C with evolution of nitrogen oxides.
Other Experimental Properties	AT LOW TEMPERATURES STRONTIUM NITRATE CRYSTALLIZES WITH 4 MOLECULES OF WATER (25.4%)STRONG OXIDIZING AGENTEnthalpy of formation: -229.57 kcal/mole @ 298.15 KGibbs energy of formation: -186.93 kcal/mole @ 298.15 K (Aqueous, 1 mole solute to 1 mole solvent), and entropy of 62.2 cal/deg-molColorless monoclinic crystalsmol wt 283.69density, 2.2mp 100 °C with loss of 4 molecules of water, bp 1100 °C (transition point to strontium oxide)60.43 g sol in 100 ml water at 0 °C, 206.5 g sol in 100 ml water at 100 °C, sol in liq ammoniavery slightly sol in absolute alcohol, acetoneinsoluble in nitric acid. /Strontium nitrate tetrahydrate/Enthalpy of formation: -233.80 kcal/mole @ 298.15 KGibbs energy of formation: -186.46 kcal/mole @ 298.15 Kentropy: 46.50 cal/deg/mole @ 298.15 °Cheat capacity: 35.83 cal/deg/mole @ 298.15 K . /Crystalline/
Brechungsindex	1.586
Lagerbedingungen	Store at +5°C to +30°C.
Aggregatzustand	Solid
Farbe	White
Wichte	2.99
Geruch	Odorless
Flame Color	Red
Spezifische Wärmekapazität	Cp(crystal): 0.71 J/(g·K), at 25℃
Merck	14,8845
Stabilität	Strong oxidizer - contact with combustible material may cause fire. Incompatible with strong reducing agents, combustible material.
Kosmetik-Inhaltsstoffe Funktionen	ORAL CARESKIN CONDITIONING
InChI	1S/2NO3.Sr/c22-1(3)4/q2-1+2
InChIKey	DHEQXMRUPNDRPG-UHFFFAOYSA-N
SMILES	[Sr++].[O-][N+]([O-])=O.[O-][N+]([O-])=O
CAS Datenbank	10042-76-9(CAS DataBase Reference)
EPA chemische Informationen	Strontium nitrate (10042-76-9)

Sicherheit & Vorschriften

GHS-Einstufung	This chemical does not meet GHS hazard criteria for 0.6% (2 of 363) of reports.DangerH271 (66.1%): May cause fire or explosionstrong Oxidizer [Danger Oxidizing liquidsOxidizing solids]P210, P220, P261, P264, P264+P265, P270, P271, P280, P283, P301+P317, P302+P352, P304+P340, P305+P351+P338, P305+P354+P338, P306+P360, P317, P319, P321, P330, P332+P317, P337+P317, P362+P364, P370+P378, P371+P380+P375, P403+P233, P405, P420, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 363 reports by companies from 22 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Regulatorische Informationen	Chemical: Nitric acid, strontium saltNitric acid, strontium salt (2:1) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Nitric acid, strontium salt (2:1) are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)Status: Active Update: 09-12-2022 https://echa.europa.eu/registration-dossier/-/registered-dossier/13508Nitric acid, strontium salt: HSNO Approval: HSR001358 Approved with controlsThe New Jersey Worker and Community Right to Know Act requires public and private employers to provide information about hazardous substances at their workplaces. (N.J.S.A. 34:5A-1 et. seq.)
Weitere Sicherheitsinformationen	IMAP assessments - Nitric acid, strontium salt: Human health tier I assessment
DOT-Kennzeichnung	Oxidizer
Brandgefahren	Special Hazards of Combustion Products: Yields toxic gaseous oxides of nitrogen when involved in fire.CAUTION: Ammonium nitrate products may explode if involved in fire or contaminated with hydrocarbons (fuels), organic matter, other contaminants or when hot molten and contained. Treat as an explosive (GUIDE 112).
Gesundheitsgefahren	Dust is irritating to skin, eyes, and respiratory system. (USCG, 1999)· Inhalation, ingestion or contact (skin, eyes) with vapors or substance may cause severe injury, burns or death.

Anwendungen & Verwendung

Beschreibung

Strontium nitrate has the molecular formula of Sr(NO3)2 and the molecular weight of 211.6327 g/mol. Strontium nitrate is prepared by treating strontium carbonate with nitric acid. The solution is evaporated and crystallized: SrCO3 +HNO3 Sr(NO3)2 + CO2 +H2O Crystallization yields the tetrahydrate, Sr(NO3)2· 4H2O, which, on heating, melts at 31.3 °C in its own waters of hydration and then decomposes >100 °C to form the anhydrous nitrate. The anhydrate melts at 570 °C (It begins to decompose as low as 545 °C), is soluble in water (70.3 gm/100 ml at 20 °C) and is very slightly soluble in ethanol. These colorless crystals, or white powder, have a density of 2.986 g/cm3 and its CAS number is 10042-76-9. It is very soluble in water, as shown in Table 4.11 on the following page. Strontium nitrate apparently forms only the tetrahydrate when a solution is evaporated below 80°C. Otherwise it decomposes at higher solution temperatures to Sr(OH)2 and nitrogen oxides. The nitric acid concentration makes little difference in the hydrate produced, in contrast to other alkaline earths like Ca and Mg.

Verwenden

Strontium nitrate is used in pyrotechnics, for producing marine and railroad signals, and in matches.

Herstellung & Synthese

synthetische

Strontium nitrate is prepared by treating strontium carbonate with nitric acid. The solution is evaporated and crystallized: SrCO3 + HNO3 → Sr(NO3)2 + CO2 + H2O Crystallization yields the tetrahydrate, Sr(NO3)2•4H2O, which on heating dehydrates to form the anhydrous nitrate.