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三氧化硫

CAS 7446-11-9O3SMW 80.07

三氧化硫(CAS 7446-11-9):分子式 O3S、分子量 80.07;类别 无机化学品。

产品描述

三氧化硫(CAS 7446-11-9)是一种无机化学品原料。其分子式 O3S 由 3 个氧、1 个硫 组成。 分子量约为 80.07。公开物性数据显示其熔点约 62.2 °C、沸点约 44.8 °C、LogP 约 -0.5。作为化工品采购代理与分销渠道,我们可在国内及跨境渠道为三氧化硫寻源比价,并安排小批量试样与批次采购;下单前提供完整 COA、质检报告与合规文件,验收以批次 COA 为准。

规格参数

CAS号7446-11-9
分子式O3S
分子量80.07
熔点62.2 °C
沸点44.8 °C
LogP-0.5
应用领域sulfonating agent in the production of detergents and an intermediate in the production of sulfuric acid and explosives、Intermediate in sulfuric acid manufacture、in sulfonations for formation of addition cmpd with amines、in the manufacture of explosives、Sulfonation of organic compounds、especially nonionic detergents
类别无机化学品

用途与场景

登记用途:sulfonating agent in the production of detergents and an intermediate in the production of sulfuric acid and explosives、Intermediate in sulfuric acid manufacture、in sulfonations for formation of addition cmpd with amines、in the manufacture of explosives、Sulfonation of organic compounds、especially nonionic detergents。

采购档案

这个产品是什么

三氧化硫 是一种无机化合物,登记 CAS 号为 7446-11-9,分子式 O3S(分子量 80.07),归属于无机化学品大类化工原料。

识别信息

登记 CAS 号:7446-11-9

其分子式 O3S 由 3 个氧、1 个硫 组成。

别名/同义词:三氧化硫 · Sulfur trioxide

所属分类:无机化学品

常见问题

三氧化硫 的 CAS 号是多少?

三氧化硫 的 CAS 登记号为 7446-11-9。

三氧化硫 的分子式与分子量是多少?

分子式 O3S,分子量 80.07。

三氧化硫 还有哪些别名?

别名/同义词:三氧化硫、Sulfur trioxide。

三氧化硫 的登记用途是什么?

登记用途:sulfonating agent in the production of detergents and an intermediate in the production of sulfuric acid and explosives、Intermediate in sulfuric acid manufacture、in sulfonations for formation of addition cmpd with amines、in the manufacture of explosives、Sulfonation of organic compounds、especially nonionic detergents。

三氧化硫 属于哪个分类?

所属分类:无机化学品。

如何在 591daili.cn 采购 三氧化硫?

请在联系页面提交产品名称、CAS 号与数量,我们作为采购代理在国内及跨境渠道为您寻源比价,安排试样与批次采购,下单前提供 COA 与合规文件。

包装与单证

包装按订单确认,从实验室小包装到吨袋大货,随订单安排而非在页面上写死。每批随货附 COA 分析证书,可另提供 MSDS;若终端用途带有法规限度(食品接触、药品或化妆品),请在询价时说明执行标准,等级按该标准确定。

PubChem 公开数据

三氧化硫(CAS 7446-11-9)的公开数据库记录,列此仅供独立核对。

危险化学品分类与危害说明

GHS notification summary14.9% (75 / 503)
Reported hazard statementsH314 (85.1%), H318 (49.3%), H330 (16.1%), H335 (79.9%), H351 (11.3%), H411 (11.3%)

This chemical does not meet GHS hazard criteria for 14.9% (75 of 503) of reports.

H314 (85.1%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]

法规与备案状态

GHS notification summary14.9% (75 / 503)

物理形态与操作说明

  • Colorless to white solid that fumes in air at room temperature; [HSDB] Exists in 3 modifications; The alpha and beta forms are solids; mp = 62.3 and 32.5 deg C, respectively; The gamma form is a solid or liquid with a mp of 16.8 deg C; [Merck Index]
  • HYGROSCOPIC LIQUID OR SOLID IN VARIOUS FORMS. .
  • White needles
  • Asbestos-like needles
  • Pure sulfur trioxide is a colorless liquid that fumes in air at room temperature and pressure.
  • 113 °F at 760 mmHg all forms (EPA, 1998)

公开数据库收录的理化数据

沸点44.8 °C
熔点62.2 °C
熔点17 °C
Vapor 密度2.76 (Air = 1)
蒸气压263.0 [mmHg]
Heat of Vaporization43.14 kJ/mol at 25 °C

这个物质在各数据库里的编号

CAS Registry Number7446-11-9
PubChem CID24682
分子式O3S
IUPAC 名称sulfur trioxide
UNII(FDA)HH2O7V4LYD

数据库记载的用途

  • Used as a sulfonating agent in the production of detergents and an intermediate in the production of sulfuric acid and explosives; [HSDB]
  • Intermediate in sulfuric acid manufacture; in sulfonations for formation of addition cmpd with amines; in the manufacture of explosives
  • Sulfonation of organic compounds, especially nonionic detergents, solar energy collectors.
  • Production of detergents, as a raw material for chlorosulfuric acid and 65% oleum. Has been added to cooled combustion gases at many coal burning power plants to improve dust removal in electrostatic precipitators.
  • Sulfur trioxide is used as such for preparing sulfonated oils, and alkyl arenesulfonate detergents.
  • ... Used as a powerful, but generally indiscriminate oxidizing agent, however, it will selectively oxidize pentachlorotoluene and similar compounds to the alcohol.

它在各数据库里的别名

SULFUR TRIOXIDE; 7446-11-9; Sulphur trioxide; Sulfur oxide (SO3); HH2O7V4LYD; DTXSID1029673; CHEBI:29384; Sulfan; Sulfuric oxide; RefChem:6276; Sulfur trioxide, stabilized; DTXCID409673; 231-197-3; Sulfuric anhydride; Sulfite radical anion; Sulfur trioxide, contains stabilizer, >=99%

计算机算出的分子描述符

分子量80.07
XLogP3-0.5
氢键供体数0
氢键受体数3
可旋转键数0
精确质量79.95681503
单同位素质量79.95681503
拓扑极性表面积52.2
重原子数4
形式电荷0

数据库摘要

Sulfur trioxide · CAS 7446-11-9 · O3S. UNII HH2O7V4LYD. 沸点: 44.8 °C; 熔点: 62.2 °C; 熔点: 17 °C.

数据来源:PubChem / Wikidata;与随货 COA 不一致时以 COA 为准。

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