七水合亚硫酸钠

  • 基本信息
  • 制备方法及用途
  • 物化性质
  • 安全信息
  • 毒理性
  • MSDS
  • 结构与计算化学
  • 表征图谱

七水合亚硫酸钠 基本信息

中文名称:
七水合亚硫酸钠 
中文别名:
亚硫酸钠 七水;
结晶亚硫酸钠 
英文名称:
Sulfurous acid,disodium salt, heptahydrate (9CI)
英文别名:
disodium,sulfite,heptahydrate;
Sulfurous acid,sodium salt,heptahydrate;
Sodium sulfite heptahydrate (2:1:7);
UNII-4YS288TJUI;
Sodium sulfite heptahydrate;
disodium sulfite heptahydrate;
Dinatrium-sulfit-7-wasser 
CAS No.:
10102-15-5
分 子 式:

H2O3S.7H2O.2Na

分 子 量:
252.1497
精确分子量:
252.01000
PSA:
147.01000
EINECS:
231-548-0
InChI:
InChI=1/Na.H2O3S.7H2O/c;1-4(2)3;;;;;;;/h;(H2,1,2,3);7*1H2/q+1;;;;;;;;/p-2
危险品标志:

 

风险术语:

 

安全术语:

 

分子结构式:
SDS:
查看

七水合亚硫酸钠 制备方法及用途

制备方法

将160gNa2CO3·10H2O溶于320mL水中,溶液过滤后平均分成两份。其中一份在水浴上加热到40℃,并在负压下通SO2达到饱和,即成为亚硫酸氢钠溶液。将另一份碳酸钠溶液加入其中,静置结晶。过滤出结晶并在室温下进行干燥可得七水亚硫酸钠110g。注意在结晶和过滤操作中应尽量避免接触空气。

合成制备方法

将160gNa2CO3·10H2O溶于320mL水中,溶液过滤后平均分成两份。其中一份在水浴上加热到40℃,并在负压下通SO2达到饱和,即成为亚硫酸氢钠溶液。将另一份碳酸钠溶液加入其中,静置结晶。过滤出结晶并在室温下进行干燥可得七水亚硫酸钠110g。注意在结晶和过滤操作中应尽量避免接触空气。

用途简介

用作还原剂、防腐剂、显影保护剂,并用于制硫代硫酸钠等气体分析中吸收氧化氮。点滴分析测定碲和铌。刺钉碘酸盐。

用途

用作还原剂、防腐剂、显影保护剂,并用于制硫代硫酸钠等。气体分析中吸收氧化氮。点滴分析测定碲和铌。刺钉碘酸盐。

七水合亚硫酸钠 物化性质

存储条件/存储方法:

密封阴凉干燥避光保存。

稳定性相关:

具有强还原性,在空气中易风化和氧化而转变为Na2SO4。易溶于水,不溶于乙醇。

其它信息:

1.      性状:无色单斜晶系结晶。有二氧化硫气味。易风化。

2.      密度(g/mL,25℃):未确定

3.      相对蒸汽密度(g/mL,空气=1):1.56

4.      熔点(ºC):未确定

5.      沸点(ºC,常压):未确定

6.      沸点(ºC,5.2kPa):未确定

7.      折射率:未确定

8.      闪点(ºC):未确定

9.      比旋光度(º):未确定

10.   自燃点或引燃温度(ºC):未确定

11.   蒸气压(kPa,20ºC):未确定

12.   饱和蒸气压(kPa,60ºC):未确定

13.   燃烧热(KJ/mol):未确定

14.   临界温度(ºC):未确定

15.   临界压力(KPa):未确定

16.   油水(辛醇/水)分配系数的对数值:未确定

17.   爆炸上限(%,V/V):未确定

18.   爆炸下限(%,V/V):未确定

19.   溶解性:溶于水,甘油,微溶于乙醇。

七水合亚硫酸钠 安全信息

包装等级:
III
风险类别:
6.1
危险类别码:
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed . R36/37/38:Irritating to eyes, respiratory system and skin .
安全说明:
S26-S36/37/39

七水合亚硫酸钠 毒理性

CHEMICAL IDENTIFICATION

RTECS NUMBER :
WE2200000
CAS REGISTRY NUMBER :
10102-15-5
LAST UPDATED :
199109
DATA ITEMS CITED :
3
MOLECULAR FORMULA :
O3-S.2Na.7H2-O
MOLECULAR WEIGHT :
367.13
WISWESSER LINE NOTATION :
NA2 S-O3 &QH 7

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Human - man
DOSE/DURATION :
743 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
ABMHAM Archives Belges de Medecine Sociale, Hygiene, Medecine du Trevail et Medecine Legale. (Quartier Esplanade no.6, 1010 Brussels, Belgium) V.4- 1946- Volume(issue)/page/year: 13,281,1955
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
277 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
COREAF Comptes Rendus Hebdomadaires des Seances, Academie des Sciences. (Paris, France) V.1-261, 1835-1965. For publisher information, see CRASEV. Volume(issue)/page/year: 257,791,1963 ** REPRODUCTIVE DATA **
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
1755 mg/kg
SEX/DURATION :
female 8-20 day(s) after conception
TOXIC EFFECTS :
Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus)
REFERENCE :
DCTODJ Drug and Chemical Toxicology. (Marcel Dekker, 270 Madison Ave., New York, NY 10016) V.1- 1977/78- Volume(issue)/page/year: 12,123,1989
毒理学数据:

1、急性毒性:人注射口LDLo:743 gm/kg。

小鼠腹腔LD50:277 mg/kg;

繁殖数据

大鼠经口LD50:1755 mg/kg;

生态数据:

通常对水体是稍微有害的,不要将未稀释或大量产品接触地下水,水道或污水系统,未经政府许可勿将材料排入周围环境。

七水合亚硫酸钠 MSDS

Name: Sodium Sulfite Hydrated Material Safety Data Sheet
Synonym: Sulfurous acid, disodium sal
CAS: 10102-15-5
Section 1 - Chemical Product   MSDS Name:Sodium Sulfite Hydrated Material Safety Data Sheet
Synonym:Sulfurous acid, disodium sal

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content EINECS#
10102-15-5 Sodium Sulfite Hydrated unlisted
Hazard Symbols: None Listed.
Risk Phrases: None Listed.

Section 3 - HAZARDS IDENTIFICATION
  EMERGENCY OVERVIEW
Not available.
Potential Health Effects
Eye:
May cause eye irritation.
Skin:
May cause skin irritation.
Ingestion:
May cause gastrointestinal irritation with nausea, vomiting and diarrhea.
Inhalation:
May cause respiratory tract irritation.
Chronic:
No information found.

Section 4 - FIRST AID MEASURES
  Eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Skin:
Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Ingestion:
Call a poison control center. If swallowed, do not induce vomiting unless directed to do so by medical personnel. Never give anything by mouth to an unconscious person. Get medical aid.
Inhalation:
Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician:

Section 5 - FIRE FIGHTING MEASURES
  General Information:
Wear appropriate protective clothing to prevent contact with skin and eyes. Wear a self-contained breathing apparatus (SCBA) to prevent contact with thermal decomposition products.
Extinguishing Media:
Substance is noncombustible; use agent most appropriate to extinguish surrounding fire.

Section 6 - ACCIDENTAL RELEASE MEASURES
  General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Vacuum or sweep up material and place into a suitable disposal container. Avoid generating dusty conditions.

Section 7 - HANDLING and STORAGE
  Handling:
Use with adequate ventilation. Avoid prolonged or repeated contact with skin. Avoid ingestion and inhalation.
Storage:
Store in a cool, dry place. Keep from contact with oxidizing materials. Keep away from strong acids.

Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
  Engineering Controls:
Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 10102-15-5: Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin:
Wear appropriate gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to minimize contact with skin.
Respirators:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.

Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
 
Physical State: Solid
Color: white
Odor: Not available.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: Not available.
Autoignition Temperature: Not available.
Flash Point: Not available.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature: Not available.
Solubility in water: Very soluble in water
Specific Gravity/Density: Not available.
Molecular Formula: Na2SO3.7H2O
Molecular Weight: 252.1316

Section 10 - STABILITY AND REACTIVITY
  Chemical Stability:
Stable.
Conditions to Avoid:
Incompatible materials.
Incompatibilities with Other Materials:
Oxidizing agents and strong acids.
Hazardous Decomposition Products:
Oxides of sulfur.
Hazardous Polymerization: Has not been reported.

Section 11 - TOXICOLOGICAL INFORMATION
  RTECS#:
CAS# 10102-15-5: WE2200000 LD50/LC50:
Not available.
Carcinogenicity:
Sodium Sulfite Hydrated - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.

Section 12 - ECOLOGICAL INFORMATION
  Ecotoxicity:
This chemical is expected to cause little oxygen depletion in aquatic systems. It has a moderate potential to affect aquatic organisms and secondary waste treatment microorganisms. It has a low potential to affect the germination and growth of some plants. Acute aquatic effects: 96-hour LC50; Fathead minnow: GT100 mg/l 96-hour LC50; Water flea: 32 mg/L

Section 13 - DISPOSAL CONSIDERATIONS
  Products which are considered hazardous for supply are classified as Special Waste and the disposal of such chemicals is covered by regulations which may vary according to location. Contact a specialist disposal company or the local waste regulator for advice. Empty containers must be decontaminated before returning for recycling.

Section 14 - TRANSPORT INFORMATION
 
IATA
Not regulated as a hazardous material.
IMO
Not regulated as a hazardous material.
RID/ADR
Not regulated as a hazardous material.

Section 15 - REGULATORY INFORMATION
 
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: Not available.
Risk Phrases:
Safety Phrases:
WGK (Water Danger/Protection)
CAS# 10102-15-5: No information available.
Canada
None of the chemicals in this product are listed on the DSL/NDSL list.
CAS# 10102-15-5 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 10102-15-5 is not on the TSCA Inventory because it is a hydrate.
It is considered to be listed if the CAS number for the anhydrous form
is on the inventory (40CFR720.3(u)(2)).


SECTION 16 - ADDITIONAL INFORMATION
N/A

七水合亚硫酸钠 分子结构与计算化学数据

分子结构数据

1、摩尔折射率:无可用的

2、摩尔体积(cm3/mol):无可用的

3、等张比容(90.2K):无可用的

4、表面张力(dyne/cm):无可用的

5、介电常数:无可用的

6、极化率(10-24cm3):无可用的

7、单一同位素质量:252.010307 Da

8、标称质量:252 Da

9、平均质量:252.1497 Da

计算化学数据

1.疏水参数计算参考值(XlogP):无

2.氢键供体数量:7

3.氢键受体数量:11

4.可旋转化学键数量:0

5.互变异构体数量:无

6.拓扑分子极性表面积89.4

7.重原子数量:13

8.表面电荷:0

9.复杂度:18.8

10.同位素原子数量:0

11.确定原子立构中心数量:0

12.不确定原子立构中心数量:0

13.确定化学键立构中心数量:0

14.不确定化学键立构中心数量:0

15.共价键单元数量:10

七水合亚硫酸钠 表征图谱

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