<生产厂家价格>

吊白块

吊白块用途

本品在印染工业中用作拔白剂，还原剂，漂白剂和生产靛蓝染料，还原染料。亦可用于合成橡胶，制糖及乙烯化合物的聚合反应。

吊白块名称

[ CAS 号 ]:
149-44-0

[ 中文名 ]:
吊白块次硫酸氢钠甲醛

[ 英文名 ]:
Sodium hydroxymethanesulfinate

[中文别名 ]:

[英文别名 ]:

rongalitc
MFCD00150599
FORMOPON
discolite
hydrolit
sodium rongalite
Hydro AWC
Hydroxymethanesulfinic Acid Sodium Salt Dihydrate
FORMOSUL
Formaldehyde Sodium Sulfoxylate Dihydrate

吊白块物理化学性质

[ 沸点 ]:
446.4ºC at 760mmHg

[ 熔点 ]:
64-68ºC

[ 分子式 ]:
CH₃NaO₃S

[ 分子量 ]:
118.08700

[ 闪点 ]:
223.8ºC

[ 精确质量 ]:
117.97000

[ PSA ]:
79.57000

[ 外观性状 ]:
白色至淡黄色粉末

[ 储存条件 ]:
库房低温,通风,干燥,防火,与氧化剂,食品原料分开存放

[ 水溶解性 ]:
H2O: 50 mg/mL, clear, colorless

吊白块MSDS

吊白块毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :: PB0380000

CHEMICAL NAME :: Methanesulfinic acid, hydroxy-, monosodium salt

CAS REGISTRY NUMBER :: 149-44-0

LAST UPDATED :: 199701

DATA ITEMS CITED :: 7

MOLECULAR FORMULA :: C-H4-O3-S.Na

MOLECULAR WEIGHT :: 119.10

WISWESSER LINE NOTATION :: Q1SQO &-NA-

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: >2 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: YKYUA6 Yakkyoku. Pharmacy. (Nanzando, 4-1-11, Yushima, Bunkyo-ku, Tokyo, Japan) V.1- 1950- Volume(issue)/page/year: 31,959,1980

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: >2 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: YKYUA6 Yakkyoku. Pharmacy. (Nanzando, 4-1-11, Yushima, Bunkyo-ku, Tokyo, Japan) V.1- 1950- Volume(issue)/page/year: 31,959,1980

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 4 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: YKYUA6 Yakkyoku. Pharmacy. (Nanzando, 4-1-11, Yushima, Bunkyo-ku, Tokyo, Japan) V.1- 1950- Volume(issue)/page/year: 31,959,1980 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 83726 No. of Facilities: 5560 (estimated) No. of Industries: 46 No. of Occupations: 29 No. of Employees: 21898 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 83726 No. of Facilities: 2998 (estimated) No. of Industries: 10 No. of Occupations: 37 No. of Employees: 239465 (estimated) No. of Female Employees: 187432 (estimated)

吊白块安全信息

[ 符号 ]:

GHS08

[ 信号词 ]:
Warning

[ 危害声明 ]:
H341

[ 补充危害声明 ]:
Contact with acids liberates toxic gas.

[ 警示性声明 ]:
P281

[ 个人防护装备 ]:
Eyeshields;Gloves

[ 危害码 (欧洲) ]:
Xi: Irritant;

[ 风险声明 (欧洲) ]:
R36/37/38

[ 安全声明 (欧洲) ]:
26-36

[ 危险品运输编码 ]:
NONH for all modes of transport

[ WGK德国 ]:
1

[ RTECS号 ]:
PB0380000

[ 海关编码 ]:
2831900000

吊白块合成路线

吊白块上下游产品

吊白块上游产品

吊白块下游产品

吊白块制备

锌粉二氧化硫甲醛法用水和锌粉配成的料浆与二氧化硫气反应，生成低亚硫酸锌，然后逐步加到预先装有甲醛溶液的第二反应器中，在加热搅拌下，逐步加入锌粉于95～105℃进行反应，生成碱式次硫酸氢锌甲醛悬浮液，送入第三反应器，先用水洗涤结晶，然后静置，抽取清液，加入烧碱溶液进行反应，生成次硫酸氢钠甲醛和氢氧化锌悬浮液，经过滤，澄清滤液，浓缩、结晶、粉碎，制得次硫酸氢钠甲醛成品。

吊白块海关

[ 海关编码 ]: 2930909090

[ 中文概述 ]:
2930909090. 其他有机硫化合物. 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:30.0%

[ 申报要素 ]: 品名, 成分含量, 用途

[ Summary ]:
2930909090. other organo-sulphur compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

吊白块文献

Reactive oxygen species in the aerobic decomposition of sodium hydroxymethanesulfinate.

Arch. Biochem. Biophys. 367(2) , 289-96, (1999)

Sodium hydroxymethanesulfinate, (HOCH2SO2Na, HMS) is relatively stable in aqueous alkaline environments, but rapidly decomposes in acidic medium to give a variety of products that include sulfur dioxi...

更多文献

吊白块