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发烟硫酸

发烟硫酸用途

1.主要用作磺化剂。与硝酸配合使用，可作硝化脱水剂。

2.用于油脂精炼、石油精炼、塑料等工业。

3.用作磺化剂，还广泛用于制造染料、炸药、硝化纤维以及药物等。

发烟硫酸名称

[ CAS 号 ]:
8014-95-7

[ 中文名 ]:
发烟硫酸

[ 英文名 ]:
sulfuric acid

[中文别名 ]:

焦硫酸

[英文别名 ]:

MFCD00137792
sulfuric acid
EINECS 231-639-5

发烟硫酸物理化学性质

[ 密度 ]:
1.840 g/mL at 25 °C(lit.)

[ 沸点 ]:
~290 °C(lit.)

[ 熔点 ]:
2 °C

[ 分子式 ]:
H₂O₇S₂

[ 分子量 ]:
178.14200

[ 精确质量 ]:
177.92400

[ PSA ]:
166.28000

[ LogP ]:
0.71980

[ 外观性状 ]:
无色,油性,冒烟的液体

[ 蒸汽密度 ]:
<0.3 (25 °C, vs air)

[ 蒸汽压 ]:
1 mm Hg ( 146 °C)

[ 储存条件 ]:
库房通风低温干燥,与H发孔剂、氰化物、可燃、易燃物分开存放

[ 稳定性 ]:
Stable. Incompatible with organic materials, powdered metals, bases, halides. Reacts violently with water. Very hygroscopic.

[ 水溶解性 ]:
H2O: soluble

发烟硫酸MSDS

详细MSDS(安全技术说明书)

发烟硫酸毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :: WS5605000

CHEMICAL NAME :: Sulfuric acid, fuming

CAS REGISTRY NUMBER :: 8014-95-7

LAST UPDATED :: 199510

DATA ITEMS CITED :: 6

MOLECULAR FORMULA :: H2-O4-S.O3-S

MOLECULAR WEIGHT :: 178.14

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LC50 - Lethal concentration, 50 percent kill

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 347 ppm/1H

REFERENCE :: TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 42,417,1977 *** REVIEWS *** IARC Cancer Review:Human Sufficient Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 54,41,1992 IARC Cancer Review:Group 1 IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 54,41,1992 TOXICOLOGY REVIEW ANAEA3 Annals of Allergy. (American College of Allergists, POB 20671, Bloomington, MN 55420) V.1- 1943- Volume(issue)/page/year: 35,165,1975 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH RECOMMENDED EXPOSURE LEVEL (REL) : NIOSH REL TO SULFURIC ACID, fuming-air:10H TWA 1 mg/m3 REFERENCE : NIOSH* National Institute for Occupational Safety and Health, U.S. Dept. of Health, Education, and Welfare, Reports and Memoranda. Volume(issue)/page/year: DHHS #92-100,1992 NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - T1966 No. of Facilities: 200 (estimated) No. of Industries: 9 No. of Occupations: 26 No. of Employees: 8071 (estimated) No. of Female Employees: 1107 (estimated)

发烟硫酸安全信息

[ 符号 ]:

GHS05, GHS06

[ 信号词 ]:
Danger

[ 危害声明 ]:
H314-H330-H335

[ 补充危害声明 ]:
Reacts violently with water.

[ 警示性声明 ]:
P260-P280-P284-P305 + P351 + P338-P310

[ 危害码 (欧洲) ]:
C

[ 风险声明 (欧洲) ]:
R36/38

[ 安全声明 (欧洲) ]:
S26-S30-S45

[ 危险品运输编码 ]:
UN 3264 8/PG 3

[ WGK德国 ]:
1

[ RTECS号 ]:
WS5600000

[ 包装等级 ]:
II

[ 危险类别 ]:
8

[ 海关编码 ]:
2807000090

发烟硫酸制备

1.硫黄法将硫黄经熔融、焚烧产生二氧化硫气体，经废热锅炉、过滤器,再经通入空气氧化转化为三氧化硫,再经冷却、酸吸收,制得硫酸成品。其反应式如下:S2＋2O22SO2
2SO2＋O22SO3
SO3＋H2OH2SO4
使用本方法时,因原料硫黄纯度高、工艺过程简化,不需繁复的净化工段及废水、废渣治理。

2.硫铁矿法将硫铁矿原料处理后,加入沸腾焙烧炉,通入空气进行氧化焙烧,产生的二氧化硫气体经净化后进入转化器转化为三氧化硫,再经酸吸收,制得硫酸成品。其反应式如下:
4FeS2＋11O28SO2＋2Fe2O3
3FeS2＋8O26SO2＋Fe3O4
2SO2＋O22SO3
SO3＋H2OH2SO4

3.冶炼烟气法以冶炼烟气为原料,将其中的二氧化硫通过转化器转化成三氧化硫,再经酸吸收,制得硫酸成品。其反应式如下：
2SO2＋O22SO3
SO3＋H2OH2SO4

4.可由浓硫酸吸收三氧化硫而成。高浓度发烟硫酸需用液体三氧化硫与纯硫酸混合而成。

发烟硫酸海关

[ 海关编码 ]: 2807000090

发烟硫酸文献

Dispersion of single-walled carbon nanotubes in water with polyphosphazene polyelectrolyte. Park HJ, et al.

J. Inorg. Organomet. Polym. Mater. 16(4) , 359-364, (2006)

Sulfonation of poly (propylene) films with fuming sulfuric acid. Kaneko M and Sato H.

Macromol. Chem. Phys. 206(4) , 456-463, (2005)

Bromination of methylpyridines in fuming sulfuric acid. Van der Does L and Hertog HJD.

Rec. Trav. Chim. 84(7) , 951-964, (1965)

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