三氧化硫

三氧化硫

sulfur trioxide

7446-11-9

O3S

80.06320

83.30000

0.29180

79.95680

2.8 (vs air)

针状或聚合物

库房通风低温干燥,与有机物、还原物、易燃物分开存放

44.8 °C

16.8 °C(lit.)

1.97 g/mL at 25 °C(lit.)

reacts violently

Stable. Incompatible with organic materials, finely powdered metals, bases, water, cyanides and a wide variety of other chemicals. Reacts violently with water, oxygen and other chemicals - read a full data sheet before use.

280 mm Hg ( 25 °C)

GHS05, GHS07

危险

H314; H335

P261; P280; P305 + P351 + P338; P310

与水剧烈反应。

WT4830000

1

8

S53-S17-S26-S36/37/39-S45-S8-S25

I

UN 1829 8/PG 1

C

R14; R34

2933990090

2933990090. 其他仅含氮杂原子的杂环化合物. 增值税率:17.0%. 退税率:13.0%. 监管条件:无. 最惠国关税:6.5%. 普通关税:20.0%

2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

<p>发烟硫酸法</p>

<p>强氧化剂,能被硫、磷、碳还原。较硫酸、发烟硫酸的脱水作用更强。对金属的腐蚀性比硫酸、发烟硫酸为弱</p>