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Merck

425478

Sigma-Aldrich

三氧化硫

contains stabilizer, ≥99%

别名:

硫酸酐

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About This Item

线性分子式:
SO3
CAS号:
分子量:
80.06
EC號碼:
MDL號碼:
分類程式碼代碼:
12352300
PubChem物質ID:
NACRES:
NA.21

蒸汽密度

2.8 (vs air)

品質等級

蒸汽壓力

280 mmHg ( 25 °C)

化驗

≥99%

包含

stabilizer

反應適用性

reagent type: oxidant

bp

44.7 °C (lit.)

mp

16.8 °C (lit.)

密度

1.97 g/mL at 25 °C (lit.)

SMILES 字串

O=S(=O)=O

InChI

1S/O3S/c1-4(2)3

InChI 密鑰

AKEJUJNQAAGONA-UHFFFAOYSA-N

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一般說明

三氧化硫 (SO 3 ) 是硫的氧化物。在含硫燃料燃烧过程中释放。在钒催化剂存在下,二氧化硫氧化生成三氧化硫。对该反应的动力学进行了研究。用密度泛函理论和从头算 方法研究了 SO 3 水解成硫酸的过程。

應用

三氧化硫 (SO 3 ) 可用于甲烷磺化合成甲磺酸 (MSA)。

象形圖

CorrosionExclamation mark

訊號詞

Danger

危險聲明

危險分類

Eye Dam. 1 - Skin Corr. 1A - STOT SE 3

標靶器官

Respiratory system

安全危害

儲存類別代碼

8B - Non-combustible corrosive hazardous materials

水污染物質分類(WGK)

WGK 1

閃點(°F)

Not applicable

閃點(°C)

Not applicable

個人防護裝備

Faceshields, Gloves, Goggles


历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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Hydrolysis of sulfur trioxide to form sulfuric acid in small water clusters.
Larson LJ, et al.
J. Chem. Phys. , 112(20), 8830-8838 (2000)
Cheri L Stowell et al.
Chemistry & biology, 13(8), 891-897 (2006-08-26)
Bisphenol A (BPA) is a widely used plasticizer whose estrogenic properties may impact hormone-responsive disorders and fetal development. In vivo, BPA appears to have greater activity than is suggested by its estrogen receptor (ER) binding affinity. This may be a
Wei Liu et al.
Journal of agricultural and food chemistry, 58(1), 172-179 (2009-12-17)
The sulfation of psyllium was carried out with sulfur trioxide-pyridine in dimethyl formamide. Three sulfated psyllium derivatives, named SP1, SP2, and SP3, were characterized by sulfur content determination, elemental analysis, FT-IR, and surface charge analysis. The sulfated derivatives were also
Oxidation of sulfur dioxide to sulfur trioxide over supported vanadia catalysts.
Dunn JP, et al.
Applied Catalysis. B, Environmental, 19(2), 103-117 (1998)
Ri-sheng Yao et al.
Bioresource technology, 102(10), 6340-6343 (2011-03-12)
In this paper, a sulfur trioxide collaborative dilutes alkali method has been developed to pre-treat rice straw and it has been studied that the pre-treated rice straw structure affected the saccharification of the rice straw hydrolyzed by cellulose enzymatic hydrolysis.

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