均三甲苯磺酸 | 3453-83-6

• 物质功能分类: 有机原料 - 烃类化合物及其衍生物 - 烃类磺化物
• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: 均三甲苯磺酸
• 中文别名: 1,3,5-三甲基-2-苯磺酰氯；2,4,6-三甲苯基磺酸二水合物；2,4,6-三甲基苯磺酸；2-甲基磺酰氯；均三甲苯硫酸二水合物；2,4,6-三甲苯基磺酸
• 英文名称: mesitylene sulfonic acid
• 英文别名: 2,4,6-trimethyl-benzenesulfonic acid；2,4,6-Trimethylbenzenesulfonic acid
• CAS: 3453-83-6
• 化学式: C₉H₁₂O₃S
• mdl: MFCD00007482
• 分子量: 200.258
• InChiKey: LXFQSRIDYRFTJW-UHFFFAOYSA-N

物化性质

• 熔点：
  55-57 °C(lit.)
• 密度：
  1.243±0.06 g/cm3(Predicted)
• 闪点：
  >230 °F
• 稳定性/保质期：

  在常温常压下，该物质保持稳定。

计算性质

• 辛醇/水分配系数(LogP)：
  1.8
• 重原子数：
  13
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.333
• 拓扑面积：
  62.8
• 氢给体数：
  1
• 氢受体数：
  3

安全信息

• 危险等级：
  8
• 危险品标志：
  C
• 安全说明：
  S22,S26,S27,S36/37/39,S45
• 危险类别码：
  R34
• WGK Germany：
  3
• 危险品运输编号：
  UN 3261 8/PG 2
• RTECS号：
  DB8930000
• 海关编码：
  2904100000
• 包装等级：
  III
• 危险类别：
  8
• 储存条件：
  常温下应存放在避光、通风且干燥的地方，并密封保存。

SDS

Name:	2-Mesitylenesulfonic acid dihydrate 97% Material Safety Data Sheet
Synonym:	2,4,6-Trimethylbenzenesulfonic acid dihydrat
CAS:	3453-83-6

Section 1 - Chemical Product MSDS Name:2-Mesitylenesulfonic acid dihydrate 97% Material Safety Data Sheet
Synonym:2,4,6-Trimethylbenzenesulfonic acid dihydrat

---

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS

CAS#	Chemical Name	content	EINECS#
3453-83-6	2-Mesitylenesulfonic acid dihydrate	97	222-379-3

Hazard Symbols: C
Risk Phrases: 34

---

Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
Causes burns.Light sensitive.Corrosive.
Potential Health Effects
Eye:
Causes eye burns. May cause chemical conjunctivitis and corneal damage.
Skin:
Causes skin burns.
Ingestion:
May cause severe and permanent damage to the digestive tract. Causes gastrointestinal tract burns. May cause perforation of the digestive tract.
Inhalation:
Causes chemical burns to the respiratory tract. Aspiration may lead to pulmonary edema.
Chronic:
Effects may be delayed.

---

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. Do NOT allow victim to rub eyes or keep eyes closed.
Extensive irrigation with water is required (at least 30 minutes).
Skin:
Get medical aid immediately. Immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse. Destroy contaminated shoes.
Ingestion:
Do not induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
Inhalation:
Get medical aid immediately. Remove from exposure and move to fresh air immediately. Do not use mouth-to-mouth resuscitation if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device.
Notes to Physician:

---

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. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion.
Extinguishing Media:
In case of fire, use water, dry chemical, chemical foam, or alcohol-resistant foam.

---

Section 6 - ACCIDENTAL RELEASE MEASURES
General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Wash area with soap and water. Clean up spills immediately, observing precautions in the Protective Equipment section. Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Provide ventilation.

---

Section 7 - HANDLING and STORAGE
Handling:
Remove contaminated clothing and wash before reuse. Keep container tightly closed. Do not get on skin or in eyes. Do not ingest or inhale. Use with adequate ventilation. Store protected from light.
Use only in a chemical fume hood. Discard contaminated shoes.
Storage:
Keep refrigerated. (Store below 4C/39F.) Keep containers tightly closed. Store protected from light.

---

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# 3453-83-6: 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 protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to minimize contact with skin.
Respirators:
A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant respirator use.

---

Section 9 - PHYSICAL AND CHEMICAL PROPERTIES

Physical State: Powder
Color: white
Odor: None reported.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: 76.00 - 78.00 deg C
Autoignition Temperature: Not applicable.
Flash Point: Not applicable.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature: Not available.
Solubility in water: Not available.
Specific Gravity/Density: Not available.
Molecular Formula: C9H12O3S.2H2O
Molecular Weight: 236.29

---

Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Stable under normal temperatures and pressures. May discolor on exposure to light. Light sensitive.
Conditions to Avoid:
Incompatible materials, light, excess heat.
Incompatibilities with Other Materials:
Strong bases, strong oxidizing agents, direct light.
Hazardous Decomposition Products:
Carbon monoxide, oxides of sulfur, carbon dioxide.
Hazardous Polymerization: Has not been reported.

---

Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 3453-83-6 unlisted.
LD50/LC50:
Not available.
Carcinogenicity:
2-Mesitylenesulfonic acid dihydrate - Not listed by ACGIH, IARC, or NTP.

---

Section 12 - ECOLOGICAL INFORMATION
Other No information available.

---

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

---

Section 14 - TRANSPORT INFORMATION

IATA
Shipping Name: ARYLSULPHONIC ACIDS, SOLID
Hazard Class: 8
UN Number: 2585
Packing Group: III
IMO
Shipping Name: ARYLSULPHONIC ACIDS, SOLID
Hazard Class: 8
UN Number: 2585
Packing Group: III
RID/ADR
Shipping Name: ARYLSULPHONIC ACIDS, SOLID
Hazard Class: 8
UN Number: 2585
Packing group: III

---

Section 15 - REGULATORY INFORMATION

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: C
Risk Phrases:
R 34 Causes burns.
Safety Phrases:
S 28 After contact with skin, wash immediately
with...
WGK (Water Danger/Protection)
CAS# 3453-83-6: No information available.
Canada
None of the chemicals in this product are listed on the DSL/NDSL list.
CAS# 3453-83-6 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 3453-83-6 is not listed on the TSCA inventory.
It is for research and development use only.

---

SECTION 16 - ADDITIONAL INFORMATION
N/A

制备方法与用途

用途

2-甲基磺酰氯是一种重要的有机化合物，主要用于生产甲基磺酸和多种医药及农药中间体。

合成方法

目前，生产2-甲基磺酰氯常用的方法是采用二甲基二硫的氯气湿法氧化工艺。该工艺具有生产条件温和、投资较小、工艺简单以及产品质量高等优点。

反应信息

• 作为反应物：
  描述：

  均三甲苯磺酸 在 氢氧化钾 作用下， 生成 2,4,6-三甲酚
  参考文献：
  名称：

  Biedermann; Ledoux, Chemische Berichte, 1875, vol. 8, p. 250

  摘要：

  DOI：
• 作为产物：
  描述：