Yttrium｜Huagongshe

Huagongshe화공사 화학 정보 인쇄 보고서 · 연구 참고용

HCID 23993생성일: 2026년 10월 27일

Yttrium

https://huagongshe.com/ko/chemical/23993

Yttrium 분자 구조식

식별자 및 물리적 특성

CAS No.	13598-57-7
분자식	Y
평균 분자량	88.9058 g/mol
단동위원소 질량	88.9058483 g/mol
SMILES	[Y]
InChIKey	VWQVUPCCIRVNHF-UHFFFAOYSA-N
PubChem CID	23993
ChEMBL	CHEMBL4650626
ChEBI	CHEBI:49978
EC No.	231-174-8
DTXSID	DTXSID0049816

화학 및 물리적 성질

극성 표면적	0
수소 결합 공여자 수	0
수소 결합 수용자 수	0
회전 가능 결합 수	0
무거운 원자 수	1
형식 전하	0
복잡도	0
물질 분류	Metals -> Rare Earth Metals
SpringerMaterials Properties	electron density of states
냄새	Odorless
밀도	4.47 (NIOSH, 2024) - Denser than waterwill sink4.47 g/cu cm4.47 @25 °C
Color/Form	Iron-gray, lustrous powderdarkens on exposure to lightHexagonal, silvery-metallic colored element...gray-black when finely divided. Brittle...harder than zinc.
용해도	Soluble in hot H2O (NIOSH, 2024)Decomposes in waterSoluble in dilute acids and potassium hydroxide solutionSoluble in hot H2O
끓는 점	5301 °F at 760 mmHg (NIOSH, 2024)3345 °C3345 °C @760 [mm Hg]
녹는점	2732 °F (NIOSH, 2024)1522 °C1526 °C
증기압	0 mmHg (approx) (NIOSH, 2024)6.66X10-11 Pa at 1000 K2.96x10-7 Pa at 1200 K1.17x10-4 Pa at 1400 K1.02x10-2 Pa at 1600 K0.316 Pa at 1800 K4.27 Pa at 2000 K35.9 Pa at 2200 K
Physical Description	Soft silvery-white metal in bulk. Dark-gray to black odorless powder. Mp: 1509 °Cbp 2927 °C. Density: 4.47 g cm-3 at 20 °C. May irritate the respiratory tract if inhaled as a powder. May irritate the digestive tract if swallowed. Vapors may cause dizziness or suffocation.Dark-gray to black, odorless solid[CAMEO] Some compounds, e.g., nitrates, are soluble in water[ACGIH]Dark-gray to black, odorless powder. Soft silvery-white metal in bulk.Dark-gray to black, odorless solid.
Other Experimental Properties	Natural yttrium contains but one isotope, yttrium-89. Forty-three other unstable isotopes and isomers have been characterized.Oxidizes on heating in air or oxygendecomposes on cold water slowly, in boiling water rapidly.Known only in the tripositive stateHeat of fusion = 11.43 kJ/molHeat of sublimation = 424.7 kJ/mol at 25 °CStandard enthalpy of formation at 298.15 K, 0.0 kJ/mol (crystal)entropy at 298.15 K, 44.4 J/mol-K (crystal)Heat capacity, 26.5 J/mol-K (crystal)Standard enthalpy of formation at 298.15 K, 421.3 kJ/mol (gas phase)Gibbs free energy of formation, 381.1 kJ/mol (gas phase)entropy at 298.15 K, 179.5 J/mol-K (gas phase)Heat capacity 25.9 J/mol-K (gas phase).

안전 및 규제

GHS 분류	This chemical does not meet GHS hazard criteria for 56.8% (180 of 317) of all reports.DangerH228 (31.2%): Flammable solid [Danger Flammable solids]P210, P222, P231, P233, P240, P241, P261, P264, P270, P271, P273, P280, P301+P317, P302+P335+P334, P302+P352, P304+P340, P317, P321, P330, P362+P364, P370+P378, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 317 reports by companies from 9 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.Warning
규제 정보	Status: Active Update: 12-12-2022 https://echa.europa.eu/registration-dossier/-/registered-dossier/22904Yttrium, powder: Does not have an individual approval but may be used under an appropriate group standard
운송 라벨(DOT)	Flammable Solid
화재 위험	Excerpt from ERG Guide 133 [Flammable Solids]:
건강 유해성	Excerpt from NIOSH Pocket Guide for Yttrium:
유해성 요약	TLV Basis: pulmonary fibrosis in rats after single intratracheal administration of a very large doseIn animal studies, it is moderately toxic by the intraperitoneal routeA dose of 50 mg/kg caused hepatic necrosis. Workers producing yttrium europium vanadate phosphor and inhaling an average of 1.4 mg/m3 complained of irritation of the skin, eyes and respiratory tractThis effect was attributed to vanadium. [ACGIH] See the radionuclide, Yttrium-90. See RARE EARTH METALS and linked occupational diseases.
반응성 그룹	Metals, Elemental and Powder, Active
Reactivity Alerts	Strong Reducing Agent
Reactivity Profile	YTTRIUM in bulk is stable in air due to the formation of oxide films. Powder or dust is light-sensitive and air-sensitive and flammable in the air and (Hazardous Chemicals Desk Reference, p. 861 (1987)). Reacts with water to form gaseous hydrogen (H2). Reacts with strong oxidizing agents, strong acids, strong bases, and halogens. The products of these reactions are irritating and toxic.
Flammable Limits	Noncombustible Solid in bulk form.

Personal Protective Equipment (PPE)

Excerpt from NIOSH Pocket Guide for Yttrium:Respirator Recommendations: Up to 5 mg/cu m: (APF = 5) Any quarter-mask respirator.Respirator Recommendations: Up to 10 mg/cu m: (Assigned Protection Factor = 10) Any particulate respirator equipped with an N95, R95, or P95 filter (including N95, R95, and P95 filtering facepieces) except quarter-mask respirators. The following filters may also be used: N99, R99, P99, N100, R100, P100. (Assigned Protection Factor = 10) Any supplied-air respirator.Respirator Recommendations: Up to 25 mg/cu m: (Assigned Protection Factor = 25) Any supplied-air respirator operated in a continuous-flow mode. (Assigned Protection Factor = 25) Any powered air-purifying respirator with a high-efficiency particulate filter.Respirator Recommendations: Up to 50 mg/cu m: (Assigned Protection Factor = 50) Any air-purifying, full-facepiece respirator with an N100, R100, or P100 filter. (Assigned Protection Factor = 50) Any supplied-air respirator that has a tight-fitting facepiece and is operated in a continuous-flow mode. (Assigned Protection Factor = 50) Any powered, air-purifying respirator with a tight-fitting facepiece and a high-efficiency particulate filter. (Assigned Protection Factor = 50) Any self-contained breathing apparatus with a full facepiece. (Assigned Protection Factor = 50) Any supplied-air respirator with a full facepiece.For more Personal Protective Equipment (PPE) (Complete) data for YTTRIUM, ELEMENTAL (7 total), please visit the HSDB record page.

Antidote and Emergency Treatment

Basic treatment: Establish a patent airway. Suction if necessary. Watch for signs of respiratory insufficiency and assist ventilations if needed. Administer oxygen by nonrebreather mask at 10 to 15 L/min. Monitor for pulmonary edema and treat if necessary ... . Monitor for shock and treat if necessary ... . Anticipate seizures and treat if necessary ... . For eye contamination, flush eyes immediately with water. Irrigate each eye continuously with normal saline during transport ... . Do not use emetics. For ingestion, rinse mouth and administer 5 mL/kg up to 200 mL of water for dilution if the patient can swallow, has a strong gag reflex, and does not drool ... . Cover skin burns with dry sterile dressings after decontamination ... . /Poison A and B/Advanced treatment: Consider orotracheal or nasotracheal intubation for airway control in the patient who is unconscious, has severe pulmonary edema, or is in respiratory arrest. Positive pressure ventilation techniques with a bag valve mask device may be beneficial. Consider drug therapy for pulmonary edema ... . Monitor cardiac rhythm and treat arrhythmias as necessary ... . Start an IV with D5W TKO /"To keep open", minimal flow rate/. Use lactated Ringer's if signs of hypovolemia are present. Watch for signs of fluid overload. For hypotension with signs of hypovolemia, administer fluid cautiously. Watch for signs of fluid overload ... . Treat seizures with diazepam (Valium) ... . Use proparacaine hydrochloride to assist eye irrigation ... . /Poison A and B/