황산 스트론튬
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황산 스트론튬 속성
- 녹는점
- 1606 °C (lit.)
- 밀도
- 3.96 g/mL at 25 °C (lit.)
- RTECS 번호
- WT1210000
- 저장 조건
- Inert atmosphere,Room Temperature
- 용해도
- 산성 수용액: 난용성(lit.)
- 물리적 상태
- 가루
- 색상
- 하얀색
- 수용성
- 묽은 염산과 질산에 용해됩니다. 물에 약간 용해됨 < 0.01g/L . 에탄올과 알칼리에 불용성.
- Merck
- 14,8848
- Solubility Product Constant (Ksp)
- pKsp: 6.46
- CAS 데이터베이스
- 7759-02-6(CAS DataBase Reference)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
| 안전지침서 | 22-24/25 | ||
|---|---|---|---|
| WGK 독일 | 3 | ||
| TSCA | Yes | ||
| HS 번호 | 28332990 | ||
| 기존화학 물질 | KE-32249 |
황산 스트론튬 C화학적 특성, 용도, 생산
개요
Strontium sulfate has the molecular formula of SrSO4 and the molecular weight of 183.6842 g/mol. It can be prepared by the reaction of sodium sulfate and strontium chloride:Na2SO4+SrCl2?SrSO4+2NaCl
Strontium sulfate occurs in nature as “celestite” and is mined from its natural deposits. Also, the sulfate can be made by reacting strontium oxide, hydroxide, or carbonate with dilute hydrochloric acid:
SrO+H2SO4?SrSO4+H2O
SrCO3+H2SO4?SrSO4+CO2+H2O
No hydrates are known.Its hardness is 3.3 Mohs. It melts at 1608°C. Its solubility in water is 0.015 g/100 ml at 25°C and 0.014 g at 35°C. It is insoluble in ethanol and acetone, but slightly soluble in acids and alkalis. It is soluble in alkali chloride solutions. The heat of formation, △Hf, is –1453 kJ/mol with an entropy value, S0, of 117.0 J/mol K. Its Mohs Hardness is 3.0–3.5. A water solution has a pH of 7.5. Its specific gravity ranges from 3.8 to 4.0 g/cm3.Pure strontium sulfate precipitate consists of single crystals, about some tens of microns long, with distinctly visible growth steps. Crystals grown with polyvinyl sulfonate in stirred solutions show a striking change of habit: they are sponge-like structures, composed of minute crystallites, of size in the nanometer range. Crystallized strontium sulfate is utilized by a small group of protozoa as a main constituent of their skeleton. It is sometimes used to impart iridescence to glass and pottery glazes or used as a fining agent in crystal glass.
There is very little demand for this salt in industry. It is available in limited quantities commercially.
화학적 성질
Milky white powder용도
Strontium Sulfate combined with Bi-2212 creates a superconductor.정의
strontium sulphate: A white solid,SrSO4; r.d. 3.96; m.p. 1605°C. It canbe made by dissolving strontiumoxide, hydroxide, or carbonate in sulphuricacid. It is used as a pigment inpaints and ceramic glazes and to providea red colour in fireworks.황산 스트론튬 준비 용품 및 원자재
원자재
준비 용품
황산 스트론튬 공급 업체
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