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| 融点 | 860 °C | | 比重(密度) | 2.22 | | 貯蔵温度 | Store at +15°C to +25°C. | | 溶解性 | H2O: 1 M at 20 °C, clear, colorless | | 外見 | Granular | | 比重 | 2.06 (20℃) | | 色 | White | | PH | 4.5-6.0 (50g/l, H2O, 20℃) | | 臭い (Odor) | Odorless | | 酸塩基指示薬変色域(pH) | 5 - 7 at 128 g/l at 25 °C | | 水溶解度 | Soluble in water. Soluble in water. Insoluble in ethanol, acetone and pyridine. | | 極大吸収波長 (λmax) | λ: 260 nm Amax: ≤0.3
λ: 280 nm Amax: ≤0.1 | | Merck | 14,5541 | | 安定性： | Stable. | | InChIKey | RKGLUDFWIKNKMX-UHFFFAOYSA-L | | CAS データベース | 10102-25-7(CAS DataBase Reference) |
| 主な危険性 | Xn | | Rフレーズ | 22-36/37/38 | | Sフレーズ | 26-37/39 | | WGK Germany | 1 | | RTECS 番号 | OJ6419000 | | TSCA | Yes | | HSコード | 28332990 | | 毒性 | LD50 orally in Rabbit: 613 mg/kg |
| | 硫酸リチウム·水和物 Usage And Synthesis |
| 外観 | 白色, 結晶～結晶性粉末 | | 溶解性 | 水に溶けやすく、エタノールにほとんど溶けない。 | | 用途 | 陶磁器、医薬原料 | | 用途 | 高純度金属化合物。酵素精製、結晶化。 | | 使用上の注意 | 純度は金属ベースで差数法によって算出したもので、重量又は容量分析等の化学的方法によるものではありません。使用目的により、正確な含量が必要な場合は、それらの方法によって測定する必要があります。 | | 化学的特性 | Colorless monoclinic or hexagonal crystals; transforms to cubic form at 500°C; refractive index 1.465; density 2.221 g/cm3; sublimes at 845°C; soluble in water, solubility decreases with an increase in temperature (26.1 and 23.2 g at 0 and 100°C, respectively); insoluble in absolute ethanol and acetone.
The monohydrate constitutes colorless monoclinic crystals; refractive index 1.465; density 2.06 g/cm3; loses water of crystallization at 130°C; soluble in water, (more soluble than the anhydrous salt (34.9 and 29.2 g/100g at 25 and 100°C), respectively; insoluble in acetone and pyridine. | | 使用 | Lithium sulfate monohydrate is used in making a special type of high strength glass. It also is used in medicine as an antidepressant,used in preparation of lithium standard solutions. | | 使用 | Lithium sulfate monohydrate is used in solar panels and potential for a new class of battery. It is also used to treat bipolar disorder and in ultrasound-type non-destructive testing. It is also used as an additive for portland cement to speed up the curing. It is also involved as a catalyst in the elimination reaction for the conversion of n-butyl bromide to 1-butene. | | 使用 | Lithium sulfate monohydrate may be used in the preparation of Cu(II) doped lithium sulfate monohydrate (LSMH) crystal. | | 製造方法 | Lithium sulfate is prepared by neutralization of lithium hydroxide or lithium carbonate with sulfuric acid followed by crystallization:
2LiOH + H2SO4 → Li2SO4 + H2O
Li2CO3 + H2SO4 → Li2SO4 + CO2 + H2O
The product obtained from crystallization in a concentrated solution is the monohydrate, Li2SO4•H2O. Anhydrous salt is obtained by heating the monohydrate in a vacuum. |
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