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焦亚硫酸钠

焦亚硫酸钠用途

焦亚硫酸钠可用作辅料,如抗菌剂、防腐剂、抗氧化剂等。药用辅料,或称药用辅料,是指除药物成分外,在制药过程中使用的其他化学物质。药用辅料一般是指药物制剂中的非活性成分,可以提高药物制剂的稳定性、溶解性和加工性。药用赋形剂还影响共同给药药物的吸收、分布、代谢和消除(ADME)过程[1]。
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焦亚硫酸钠名称

[ CAS 号 ]:
7681-57-4

[ 中文名 ]:
焦亚硫酸钠

[ 英文名 ]:
Sodium metabisulfite

[中文别名 ]:

[英文别名 ]:

焦亚硫酸钠生物活性

[ 描述 ]:

焦亚硫酸钠可用作辅料,如抗菌剂、防腐剂、抗氧化剂等。药用辅料,或称药用辅料,是指除药物成分外,在制药过程中使用的其他化学物质。药用辅料一般是指药物制剂中的非活性成分,可以提高药物制剂的稳定性、溶解性和加工性。药用赋形剂还影响共同给药药物的吸收、分布、代谢和消除(ADME)过程[1]。

[ 相关类别 ]:

研究领域 >> 其他
信号通路 >> 其他 >> 其他

[参考文献]

[1]. Elder DP, et al. Pharmaceutical excipients - quality, regulatory and biopharmaceutical considerations. Eur J Pharm Sci. 2016 May 25;87:88-99.  

焦亚硫酸钠物理化学性质

[ 密度 ]:
1.48

[ 熔点 ]:
150 °C

[ 分子式 ]:
Na2O5S2

[ 分子量 ]:
190.11

[ 精确质量 ]:
189.898254

[ PSA ]:
124.92000

[ LogP ]:
0.27220

[ 外观性状 ]:
白色结晶粉末

[ 储存条件 ]:
库房低温,通风,干燥

[ 稳定性 ]:
Stable. Incompatible with strong oxidizing agents, strong acids. Contact with strong acids releases a poisonous gas. May be moisture and air sensitive.

[ 水溶解性 ]:
540 g/L (20 ºC)

焦亚硫酸钠MSDS

焦亚硫酸钠毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :
UX8225000
CHEMICAL NAME :
Pyrosulfurous acid, disodium salt
CAS REGISTRY NUMBER :
7681-57-4
LAST UPDATED :
199712
DATA ITEMS CITED :
30
MOLECULAR FORMULA :
O5-S2.2Na
MOLECULAR WEIGHT :
190.10
WISWESSER LINE NOTATION :
NA2 S2-O3-Q2

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
115 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Parenteral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
910 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - rabbit
DOSE/DURATION :
192 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
75 mg/kg/15D-C
TOXIC EFFECTS :
Kidney, Ureter, Bladder - other changes Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - phosphatases Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - dehydrogenases
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Mammal - pig
DOSE/DURATION :
562 gm/kg/48W-C
TOXIC EFFECTS :
Liver - changes in liver weight Kidney, Ureter, Bladder - changes in bladder weight Nutritional and Gross Metabolic - weight loss or decreased weight gain
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
20 gm/kg
SEX/DURATION :
multigenerations
TOXIC EFFECTS :
Reproductive - Effects on Newborn - stillbirth
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
40 gm/kg
SEX/DURATION :
multigenerations
TOXIC EFFECTS :
Reproductive - Effects on Newborn - weaning or lactation index (e.g., # alive at weaning per # alive at day 4)

MUTATION DATA

TYPE OF TEST :
Sister chromatid exchange
TEST SYSTEM :
Rodent - hamster Ovary
REFERENCE :
ENMUDM Environmental Mutagenesis. (New York, NY) V.1-9, 1979-87. For publisher information, see EMMUEG. Volume(issue)/page/year: 7,1,1985 *** REVIEWS *** ACGIH TLV-Not classifiable as a human carcinogen DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: TLV/BEI,1997 ACGIH TLV-TWA 5 mg/m3 DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: TLV/BEI,1997 IARC Cancer Review:Human Inadequate 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: 54,131,1992 IARC Cancer Review:Animal Inadequate 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: 54,131,1992 IARC Cancer Review:Group 3 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: 54,131,1992 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-AUSTRALIA:TWA 5 mg/m3 JAN 1993 OEL-BELGIUM:TWA 5 mg/m3 JAN 1993 OEL-DENMARK:TWA 5 mg/m3 JAN 1993 OEL-FRANCE:TWA 5 mg/m3 JAN 1993 OEL-THE NETHERLANDS:TWA 5 mg/m3 JAN 1993 OEL-SWITZERLAND:TWA 5 mg/m3 JAN 1993 OEL-UNITED KINGDOM:TWA 5 mg/m3 JAN 1993 OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGIH TLV *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH RECOMMENDED EXPOSURE LEVEL (REL) : NIOSH REL TO SODIUM METABISULFITE-air:10H TWA 5 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 - X4004 No. of Facilities: 8367 (estimated) No. of Industries: 73 No. of Occupations: 68 No. of Employees: 88236 (estimated) No. of Female Employees: 28696 (estimated)
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焦亚硫酸钠安全信息

[ 符号 ]:

GHS05, GHS07

[ 信号词 ]:
Danger

[ 危害声明 ]:
H302-H318

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

[ 警示性声明 ]:
P280-P301 + P312 + P330-P305 + P351 + P338 + P310

[ 个人防护装备 ]:
dust mask type N95 (US);Eyeshields;Gloves

[ 危害码 (欧洲) ]:
Xn:Harmful

[ 风险声明 (欧洲) ]:
R22;R31;R41

[ 安全声明 (欧洲) ]:
S26-S39-S46

[ 危险品运输编码 ]:
3260

[ WGK德国 ]:
1

[ RTECS号 ]:
UX8225000

[ 包装等级 ]:
III

[ 海关编码 ]:
2832100000

焦亚硫酸钠制备

1.将碎硫磺送入燃烧炉,并通人为理论量2倍左右的压缩空气,在600~800℃下自燃。经冷却除尘和水洗后送入多级反应器,与碳酸钠溶液进行逆向吸收;吸收液温度控制在45℃左右,多级反应流出的晶浆经离心分离,160℃以下干燥即为成品。反应方程式如下:


2.在亚硫酸氢钠溶液中加入一定量的纯碱,生成亚硫酸钠的悬浮液。通入二氧化硫,生成焦亚硫酸钠结晶,经离心分离,干燥制得。或者用碳酸钠溶液吸收二氧化硫气生成亚硫酸氢钠溶液,当反应终点时,从亚硫酸氢钠饱和液中析出,经离心脱水,干燥制得。

3.在普通玻璃干燥塔的下部装上玻璃棉,然后装满NaHCO3与碎玻璃片的混合物,在负压下从塔的下部通入SO2气体,直到不再有二氧化碳逸出为止。反应中生成的水集中于塔的底部,所得的盐实际上是干的。筛出碎玻璃片,放入密闭瓶中。然后将此无水盐在大瓷坩埚中于500~600℃下灼烧2~3h,灼烧进行到制剂样品的水溶液与AgNO3反应生成的沉淀为纯白色(不是淡黄色)为止。

4.在保持温度为30℃左右的条件下,向30%的碳酸钠溶液中通入SO2气体,直到有强烈的SO2气味为止。将此溶液放入以浓硫酸作干燥剂的干燥器中,保持温度在25℃以上,静置至结晶析出。抽滤并用乙醇洗涤结晶,并在氮气或氢气流中干燥,隔绝空气保存。
5.采用吸收法。以食品级纯碱溶液吸收二氧化硫生成焦硫酸钠,经精制除杂、过滤、干燥,制得食用级焦亚硫酸钠。其反应式如下。

6.将洗净的二氧化硫气体通入含量约为15%的碳酸氢钠溶液中进行反应,直至二氧化碳气体不再逸出:

加入等体积的乙醇,析出结晶:

抽滤,干燥,即得分析纯品。

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焦亚硫酸钠海关

[ 海关编码 ]: 2832100000

焦亚硫酸钠文献

The CRE1 cytokinin pathway is differentially recruited depending on Medicago truncatula root environments and negatively regulates resistance to a pathogen.

PLoS ONE 10(1) , e0116819, (2015)

Cytokinins are phytohormones that regulate many developmental and environmental responses. The Medicago truncatula cytokinin receptor MtCRE1 (Cytokinin Response 1) is required for the nitrogen-fixing ...

Development of papain containing pellets produced by extrusion-spheronization: an operational stage approach.

Drug Dev. Ind. Pharm. 41(3) , 430-5, (2015)

The performance of the standardized extrusion-spheronization technique, operational conditions, formulation parameters and storage of the final product over the bioactivity of papain containing pellet...

Quorum Sensing Peptides Selectively Penetrate the Blood-Brain Barrier.

PLoS ONE 10 , e0142071, (2015)

Bacteria communicate with each other by the use of signaling molecules, a process called 'quorum sensing'. One group of quorum sensing molecules includes the oligopeptides, which are mainly produced b...


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