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황산 칼슘, 이수화물

황산 칼슘, 이수화물
황산 칼슘, 이수화물 구조식 이미지
카스 번호:
10101-41-4
한글명:
황산 칼슘, 이수화물
동의어(한글):
황산칼슘,이수화물;황산,칼슘염(1:1),이염화물;황산칼슘이수화물;황산칼슘,이수화물
상품명:
Calcium sulfate dihydrate
동의어(영문):
gypse;GYPSUM;annaline;satinite;selenite;alabaster;lightspar;c.i. 77231;TERRA ALBA;SATIN SPAR
CBNumber:
CB5110067
분자식:
CaH4O6S
포뮬러 무게:
172.17
MOL 파일:
10101-41-4.mol

황산 칼슘, 이수화물 속성

녹는점
128°C -1.5H₂O
끓는 점
163°C -2H₂O
밀도
2.32
인화점
163°C -2H₂O
저장 조건
Store at RT.
용해도
H2O: 0.01 M at 20 °C, clear, colorless
물리적 상태
powder
색상
White
Specific Gravity
2.32
수소이온지수(pH)
7.0 (50g/l, H2O, 20℃)(slurry)
수용성
2 g/L (20 ºC)
감도
Hygroscopic
Merck
14,1706
Solubility Product Constant (Ksp)
pKsp: 4.5
안정성
Stable. Incompatible with aluminium, strong acids.
CAS 데이터베이스
10101-41-4(CAS DataBase Reference)
NIST
calcium sulfate(10101-41-4)

안전

위험품 표기 Xn
위험 카페고리 넘버 20/21/22-36/37/38
안전지침서 22-24/25-36-26
WGK 독일 1
RTECS 번호 EW4150000
TSCA Yes
HS 번호 28332990
독성 LD50 orally in Rabbit: > 10000 mg/kg

황산 칼슘, 이수화물 MSDS


Calcium sulfate dihydrate

황산 칼슘, 이수화물 C화학적 특성, 용도, 생산

화학적 성질

monoclinic; hardness 1.5–2.0 Mohs; lumps or white powder(s); used in manufacturing portland cement, plaster of paris and artificial marble [KIR78] [MER06] [STR93]

용도

Used in this determination of oxalates

정의

A mineral that consists of calcium sulfate with water molecules attached, or the rock that consists primarily of this mineral.

정의

Gypsum: a monoclinic mineralform of hydrated calcium sulphate,CaSO4.2H2O. It occurs in five varieties:rock gypsum, which is oftenred stained and granular; gypsite, animpure earthy form occurring as asurface deposit; alabaster, a purefine-grained translucent form; satinspar, which is fibrous and silky; andselenite, which occurs as transparentcrystals in muds and clays. It is usedin the building industry and in themanufacture of cement, rubber,paper, and plaster of Paris.

위험도

Nasal symptoms.

농업용

Selenite, which is a salt of selenic acid (H2SeO3), and very similar to sulphite, is made by the oxidation of selenium by nitric acid. The low solubility of ironselenite complexes is responsible for the non-toxic level of selenium in plants growing on acid soils having a very high total selenium content. Plants absorb selenite, but generally to a lesser extent, than selenate, which is another form of selenium.

Safety Profile

Human systemic effects by inhalation: fibrosing alveolitis ('growth of fibrous tissue in the lung), unspecified respiratory system effects, and unspecified effects on the nose. Questionable carcinogen with experimental carcinogenic data. Long considered a nuisance dust (dependmg on silica content). When heated to decomposition it emits toxic fumes of SO,. See also CALCIUM SULFATE, CALCIUM COMPOUNDS, and SULFATES.

Purification Methods

It loses only part of its H2O at 100-150o (see below). It is soluble in H2O and very slowly soluble in glycerol. It is insoluble in most organic solvents.

황산 칼슘, 이수화물 준비 용품 및 원자재

원자재

준비 용품


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