二磺基苯甲酸是几元酸？其溶液有没有危险性

Question

如题所述

Answer 1

晚上好，磺基苯甲酸的主体结构仍然是苯甲酸，它的分子链上只有一个羧基是一元羧酸。但是，由于接枝了一个无机磺酸基上去还可以电离出另一个H+，所以加起来是二元酸请酌情参考。磺酸基是有机酸支链上的一个特例。
晚上好，磺基苯甲酸的主体结构仍然是苯甲酸，它的分子链上只有一个羧基是一元羧酸。但是，由于接枝了一个无机磺酸基上去还可以电离出另一个H+，所以加起来是二元酸请酌情参考。磺酸基是有机酸支链上的一个特例。
有机酸看有几个酸根，有几个就是几元酸，比如草酸（乙二酸）二元酸，磺基苯甲酸，一个磺酸基，一个羧基，也是二元酸。无机酸，看水中电离的情况，如果是自身电离，那么有几个羟基就是几元酸，比如碳酸二元酸有两个羟基。HOCOOH，硝酸HONO2一个羟基，次磷酸H3PO2的结构式【O=P=H2】OH，一个羟基一元酸。亚磷酸H3PO3二元酸，结构式【O=P-H】（OH）2，两个羟基二元酸。

如果再说在水中电离结构发生变化，则要看怎么电离，具体问题具体分析：比如硼酸H3BO3，结构式B（OH）3，但是电离实际发生反应B（OH）3十H2O=H+十B（OH）4-是一元酸。

中学部分，基本上学的是最高价氧化物，看几个氢原子就几元酸。比如H3PO4三元酸。

Answer 2

中文名称: 2-磺基苯甲酸 
英文名称:2-Sulfobenzoic acid
CAS No.:632-25-7
分子式: C7H6O5S 
分子量:202.18454
如需查看该化合物的属性,结构等信息 请点击：632-25-7

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2-磺基苯甲酸 MSDS

基础信息

Name:    2-Sulfobenzoic acid Material Safety Data Sheet    

Synonym:    

CAS:    632-25-7    

Section 1 - Chemical Product ? MSDS Name:2-Sulfobenzoic acid Material Safety Data Sheet 
Synonym: 


Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS


CAS#    Chemical Name    content    EINECS#    

632-25-7    2-Sulfobenzoic acid    211-176-5    

Hazard Symbols: C 
Risk Phrases: 22 34 


Section 3 - HAZARDS IDENTIFICATION
? EMERGENCY OVERVIEW
Harmful if swallowed. Causes burns.Hygroscopic (absorbs moisture from the air).
Potential Health Effects
Eye:
Causes eye burns.
Skin:
Causes skin burns.
Ingestion:
Harmful if swallowed. Causes gastrointestinal tract burns.
Inhalation:
Causes chemical burns to the respiratory tract.
Chronic:
Not available.


Section 4 - FIRST AID MEASURES
? Eyes: Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.
Skin:
Get medical aid immediately. Immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Ingestion:
Do not induce vomiting. Get medical aid immediately.
Inhalation:
Get medical aid immediately. Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
Notes to Physician:
Treat symptomatically and supportively.


Section 5 - FIRE FIGHTING MEASURES
? General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear.
Extinguishing Media:
Use foam, dry chemical, or carbon dioxide.


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.


Section 7 - HANDLING and STORAGE
? Handling:
Do not breathe dust, vapor, mist, or gas. Do not get in eyes, on skin, or on clothing. Use only in a chemical fume hood.
Storage:
Store in a cool, dry place. Store in a tightly closed container.
Corrosives area.


Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
? Engineering Controls:
Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 632-25-7: Personal Protective Equipment Eyes: Not available.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
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: 142 deg C
Autoignition Temperature: Not available.
Flash Point: Not available.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water:
Specific Gravity/Density:
Molecular Formula: C7H6O5S
Molecular Weight: 202.19


Section 10 - STABILITY AND REACTIVITY
? Chemical Stability:
Not available.
Conditions to Avoid:
Incompatible materials.
Incompatibilities with Other Materials:
Strong oxidizing agents, strong bases.
Hazardous Decomposition Products:
Carbon monoxide, oxides of sulfur, carbon dioxide.
Hazardous Polymerization: Has not been reported 


Section 11 - TOXICOLOGICAL INFORMATION
? RTECS#:
CAS# 632-25-7 unlisted.
LD50/LC50:
Not available.
Carcinogenicity:
2-Sulfobenzoic acid - Not listed by ACGIH, IARC, or NTP.


Section 12 - ECOLOGICAL INFORMATION
? 


Section 13 - DISPOSAL CONSIDERATIONS
? Dispose of in a manner consistent with federal, state, and local regulations.


Section 14 - TRANSPORT INFORMATION
? 
IATA
Shipping Name: CORROSIVE SOLID, ACIDIC, ORGANIC, N.O.S.*
Hazard Class: 8
UN Number: 3261
Packing Group: II
IMO
Shipping Name: CORROSIVE SOLID, ACIDIC, ORGANIC, N.O.S.
Hazard Class: 8
UN Number: 3261
Packing Group: II
RID/ADR
Shipping Name: CORROSIVE SOLID, ACIDIC, ORGANIC, N.O.S.
Hazard Class: 8
UN Number: 3261
Packing group: II


Section 15 - REGULATORY INFORMATION
? 
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: C

Answer 3

磺基苯甲酸的主体结构仍然是苯甲酸，它的分子链上只有一个羧基是一元羧酸。但是，由于接枝了一个无机磺酸基上去还可以电离出另一个H+，所以加起来是二元酸请酌情参考。磺酸基是有机酸支链上的一个特例。
晚上好，磺基苯甲酸的主体结构仍然是苯甲酸，它的分子链上只有一个羧基是一元羧酸。但是，由于接枝了一个无机磺酸基上去还可以电离出另一个H+，所以加起来是二元酸请酌情参考。磺酸基是有机酸支链上的一个特例。磺基苯甲酸的主体结构仍然是苯甲酸，它的分子链上只有一个羧基是一元羧酸。但是，由于接枝了一个无机磺酸基上去还可以电离出另一个H+，所以加起来是二元酸请酌情参考。磺酸基是有机酸支链上的一个特例。
磺基苯甲酸（C7H6SO5）是一种有机酸，它属于几元酸？