파리의석고(Ca(SO4).1/2H2O)

파리의석고(Ca(SO4).1/2H2O) · Fgr · Densite · p58-Fgr · FLJ43153 · MGC75096 · Crystacal · Ai3-01697

https://huagongshe.com/ko/chemical/3033839

식별자 및 물리적 특성

CAS No.	10034-76-1
분자식	(CaSO4)2.H2O
평균 분자량	290.3 g/mol
단동위원소 질량	289.8392056 g/mol
SMILES	O.O=S(=O)([O-])[O-].O=S(=O)([O-])[O-].[Ca+2].[Ca+2]
InChIKey	ZOMBKNNSYQHRCA-UHFFFAOYSA-J
PubChem CID	3033839
ChEBI	CHEBI:32584
EC No.	600-067-1
DTXSID	DTXSID90894798
현지명	파리의석고(Ca(SO4).1/2H2O)

화학 및 물리적 성질

극성 표면적	178
수소 결합 공여자 수	1
수소 결합 수용자 수	9
회전 가능 결합 수	0
무거운 원자 수	13
형식 전하	0
복잡도	62.2
물질 분류	Mineral Dusts -> Other Mineral Dusts
밀도	2.5 (NIOSH, 2024) - Denser than waterwill sinkDensity (for the alpha hemihydrate): 2.76 g/cm³1.55 g/cm3
용해도	0.3 % at 77 °F (NIOSH, 2024)Solubility in water, g/100ml at 25 °C: 0.30(77 °F): 0.3%
녹는점	325 °F (Loses H2O) (NIOSH, 2024)163 °C325 °F (loses H₂O)325 °F (Loses H2O)
증기압	0 mmHg (approx) (NIOSH, 2024)
Physical Description	Plaster of paris appears as white or yellowish, finely divided, odorless powder consisting mostly or entirely of calcium sulfate hemihydrate, CaSO4*1/2H2O. Forms a paste when it is mixed with water that soon hardens into a solid. Used in making casts, molds, and sculpture. Generally non-toxic.Large CrystalsDry PowderWhite or yellowish, finely divided, odorless powder[NIOSH]FINE HYGROSCOPIC WHITE POWDER.White or yellowish, finely divided, odorless powder.
저장 조건	-20°C
EPA	Plaster of Paris (Ca(SO4).1/2H2O) (26499-65-0)

안전 및 규제

GHS 분류	This chemical does not meet GHS hazard criteria for 100% (75 of 75) of all reports.Not ClassifiedAggregated GHS information provided per 75 reports by companies from 2 notifications to the ECHA C&L Inventory.This chemical does not meet GHS hazard criteria for 100% (39 of 39) of all reports.Aggregated GHS information provided per 39 reports by companies from 2 notifications to the ECHA C&L Inventory.
규제 정보	Chemical: Sulfuric acid, calcium salt (1:1), hemihydrateSulfuric acid, calcium salt, hydrate (2:2:1) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Sulfuric acid, calcium salt, hydrate (2:2:1) 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)Plaster of Paris (Ca(SO4).1/2H2O) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Plaster of Paris (Ca(SO4).1/2H2O) 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)Calcium sulfate hemihydrate: Does not have an individual approval but may be used under an appropriate group standardPlaster of Paris (Ca(SO4).1/2H2O): Does not have an individual approval but may be used as a component in a product covered by a group standard. It is not approved for use as a chemical in its own right.
기타 안전 정보	IMAP assessments - Sulfuric acid, calcium salt (1:1), hemihydrate: Human health tier I assessment
화재 위험	Not combustible.
건강 유해성	Excerpt from NIOSH Pocket Guide for Plaster of Paris:
유해성 요약	Plaster of Paris, manufactured from gypsum (hydrated calcium sulfate), is regulated by OSHA as a nuisance dust.
반응성 그룹	Non-Redox-Active Inorganic Compounds
Reactivity Profile	PLASTER OF PARIS is non-flammable and non-combustible. Has generally low chemical reactivity but can act as an oxidizing agent under extreme conditions. Decomposes at high temperature to generate toxic oxides of sulfur. Reacts exothermically but slowly with moisture in the air or water to form gypsum CaSO4.2H2O.

용도

일반 설명

White or yellowish, finely divided, odorless powder consisting mostly or entirely of calcium sulfate hemihydrate, CaSO4·1/2H2O. Forms a paste when Plaster of Paris (Ca(SO4).1/2H2O) is mixed with water that soon hardens into a solid. Used in making casts, molds, and sculpture. Generally non-toxic.