Phosphorus trioxide

Phosphorus trioxide · phosphorous anhydride · Diphosphorus trioxide · Phosphorus trioxide ISO 9001：2015 REACH

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식별자 및 물리적 특성

CAS No.	1314-24-5
분자식	P2.O3
평균 분자량	109.946 g/mol
단동위원소 질량	109.93226712 g/mol
SMILES	O=POP=O
InChIKey	XDJWZONZDVNKDU-UHFFFAOYSA-N
PubChem CID	14810
DTXSID	DTXSID00895014

화학 및 물리적 성질

XLogP	-1
극성 표면적	43.4
수소 결합 공여자 수	0
수소 결합 수용자 수	3
회전 가능 결합 수	0
무거운 원자 수	5
형식 전하	0
복잡도	34.2
물질 분류	Corrosives
밀도	2.135 @ 21°Cd421 2.135
끓는 점	173.1 °C @760 [mm Hg]bp 173.1° in nitrogen atm
녹는점	23.8 °C23.8°
Physical Description	Phosphorus trioxide appears as white crystalline solid or a liquid (melting point 24 °C). Density 2.14 g / cm3. Toxic and corrosive. May severely irritate skin and eyes. Used to make other chemicals.
용해도	reacts with H2O
물리적 상태	무색의 단사정계 결정 또는 액체
색상	colorless monoclinic crystals, crystalline or liquid
용해도	차가운 H2O에서 천천히 H3PO3를 형성합니다. 뜨거운 H2O에서 격렬하게 반응하여 빨간색 P, PH3 및 H3PO4를 형성합니다. [MER06]
EPA	Phosphorus trioxide (1314-24-5)

화학적 성질

transparent crystal(s); monoclinic or colorless liquid; disproportionates to red P and P2O4if heated above 210°C [MER06]

안전 및 규제

누출 비상 조치
규제 정보	The 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.)
운송 라벨(DOT)	Corrosive
화재 위험	Excerpt from ERG Guide 157 [Substances - Toxic and/or Corrosive (Non-Combustible / Water-Sensitive)]:· Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.
건강 유해성	Excerpt from ERG Guide 157 [Substances - Toxic and/or Corrosive (Non-Combustible / Water-Sensitive)]:· TOXIC and/or CORROSIVEinhalation, ingestion or contact (skin, eyes) with vapors, dusts or substance may cause severe injury, burns or death.
운송 번호 및 가이드(DOT)	2578 157
반응성 그룹	Acids, Strong Non-oxidizing
Reactivity Alerts	Water-Reactive
Reactivity Profile	PHOSPHORUS TRIOXIDE reacts exothermically with bases. Melted phosphorus trioxide readily ignites in air. Instantly ignites with a flame of almost blinding brilliance when thrown into oxygen at 50-60 °C [J. Am. Chem. Soc. 125:347. 1924]. Incompatible with ammonia, disulfur dichloride, halogens, oxygen, phosphorus pentachloride, sulfur, sulfuric acid, water [Bretherick, 5th ed., 1995, p. 1778].
DOT Hazard Classification	Phosphorus trioxideUN2578Class 8 Corrosive material (49 eCFR § 173.136)PG III: the degree of danger presented by the material is minor
Air and Water Reactions	Fumes in air. Reacts slowly with cold water to give phosphorous acid. Reacts vigorously with hot water to generate red phosphorus, phosphine (highly toxic and flammable) and phosphoric acid [Merck 11th ed. 1989].
Hazard Classes and Categories	Corrosives
소화	Excerpt from ERG Guide 157 [Substances - Toxic and/or Corrosive (Non-Combustible / Water-Sensitive)]:

용도

일반 설명

White crystalline solid or a liquid (melting point 24°C). Density 2.14 g / cm3. Toxic and corrosive. May severely irritate skin and eyes. Used to make other chemicals.