2,3-Dimethyl-2,3-diphenylbutane

Modify Date: 2024-01-04 18:08:45

2,3-Dimethyl-2,3-diphenylbutane Structure
2,3-Dimethyl-2,3-diphenylbutane structure
Common Name 2,3-Dimethyl-2,3-diphenylbutane
CAS Number 1889-67-4 Molecular Weight 238.36700
Density 0.95 g/cm3 Boiling Point 306.1ºC at 760 mmHg
Molecular Formula C18H22 Melting Point 90-110 °C
MSDS N/A Flash Point 142.7ºC

 Use of 2,3-Dimethyl-2,3-diphenylbutane


2,3-Dimethyl-2,3-diphenylbutane is one of the decomposition of Dicumylperoxide (DCP). Diallyl orthophthalate (DAOP) is a reactive plasticizer initiated by 2,3-dimethyl-2,3-diphenylbutane for improving polyphenylene oxide (PPO) processing[1][2].

 Names

Name (2,3-dimethyl-3-phenylbutan-2-yl)benzene
Synonym More Synonyms

 2,3-Dimethyl-2,3-diphenylbutane Biological Activity

Description 2,3-Dimethyl-2,3-diphenylbutane is one of the decomposition of Dicumylperoxide (DCP). Diallyl orthophthalate (DAOP) is a reactive plasticizer initiated by 2,3-dimethyl-2,3-diphenylbutane for improving polyphenylene oxide (PPO) processing[1][2].
Related Catalog
References

[1]. Di Somma I, et al. Kinetic and chemical characterization of thermal decomposition of dicumylperoxide in cumene. J Hazard Mater. 2011;187(1-3):157-163.

[2]. Wang H, et al. Improved Processing and Properties for Polyphenylene Oxide Modified by Diallyl Orthophthalate Prepolymer. Polymers (Basel). 2019;11(12):2016. Published 2019 Dec 5.

 Chemical & Physical Properties

Density 0.95 g/cm3
Boiling Point 306.1ºC at 760 mmHg
Melting Point 90-110 °C
Molecular Formula C18H22
Molecular Weight 238.36700
Flash Point 142.7ºC
Exact Mass 238.17200
LogP 4.94200
Vapour Pressure 0.00143mmHg at 25°C
Index of Refraction 1.5531 (23ºC)
Storage condition Refrigerator (+4°C)

 MSDS

Name: 2 3-Dimethyl-2 3-diphenylbutane Material Safety Data Sheet
Synonym: None Known
CAS: 1889-67-4
Section 1 - Chemical Product MSDS Name:2 3-Dimethyl-2 3-diphenylbutane Material Safety Data Sheet
Synonym:None Known

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content EINECS#
1889-67-4 2,3-Dimethyl-2,3-diphenylbutane 95 217-568-2
Hazard Symbols: None Listed.
Risk Phrases: None Listed.

Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
The toxicological properties of this material have not been fully investigated.
Potential Health Effects
Eye:
Non-irritating to the eyes.
Skin:
Non-irritating to the skin. May be harmful if absorbed through the skin.
Ingestion:
May cause irritation of the digestive tract. The toxicological properties of this substance have not been fully investigated. May be harmful if swallowed.
Inhalation:
May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated. May be harmful if inhaled.
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:
In case of contact, flush skin with plenty of water. Remove contaminated clothing and shoes. Get medical aid if irritation develops and persists. Wash clothing before reuse.
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:
If inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
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. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion.
Extinguishing Media:
Use water spray, dry chemical, carbon dioxide, or chemical foam.

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. Clean up spills immediately, observing precautions in the Protective Equipment section. Avoid generating dusty conditions.
Provide ventilation.

Section 7 - HANDLING and STORAGE
Handling:
Wash thoroughly after handling. Use with adequate ventilation.
Minimize dust generation and accumulation. Avoid breathing dust, vapor, mist, or gas. Avoid contact with eyes, skin, and clothing.
Keep container tightly closed. Avoid ingestion and inhalation.
Storage:
Store in a tightly closed container. Store in a dry area. Keep refrigerated. (Store below 4C/39F.)

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# 1889-67-4: 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 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: Flakes
Color: white to yellow
Odor: faint odor
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: 90 - 110 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: Insoluble.
Specific Gravity/Density:
Molecular Formula: C18H22
Molecular Weight: 238.37

Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Not currently available.
Conditions to Avoid:
Dust generation.
Incompatibilities with Other Materials:
Strong oxidizing agents.
Hazardous Decomposition Products:
Carbon monoxide, carbon dioxide.
Hazardous Polymerization: Has not been reported

Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 1889-67-4 unlisted.
LD50/LC50:
Not available.
Carcinogenicity:
2,3-Dimethyl-2,3-diphenylbutane - 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
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:
S 24/25 Avoid contact with skin and eyes.
WGK (Water Danger/Protection)
CAS# 1889-67-4: No information available.
Canada
CAS# 1889-67-4 is listed on Canada's NDSL List.
CAS# 1889-67-4 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 1889-67-4 is listed on the TSCA inventory.


SECTION 16 - ADDITIONAL INFORMATION
N/A

 Safety Information

Hazard Codes T+
Risk Phrases R28:Very Toxic if swallowed.
Safety Phrases 24/25
RIDADR UN 2811 6.1/PG 2
WGK Germany 3
RTECS MV1407370
Packaging Group I; II; III
Hazard Class 6.1
HS Code 2902909090

 Synthetic Route

 Customs

HS Code 2902909090
Summary 2902909090 other aromatic hydrocarbons。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:2.0%。General tariff:30.0%

 Synonyms

2,3-diphenylbutane
Butane,2,3-dimethyl-2,3-diphenyl
(2,3-Dimethylbutane-2,3-diyl)dibenzene
2,3-Dimethyl-2,3-diphenylbutane
EINECS 217-568-2
Dicumene
MFCD00053713
bis-1,1'-(1,2,2,2-tetramethyl-1,2-ethanediyl)-benzene
Benzene,1,1'-(1,1,2,2-tetramethyl-1,2-ethanediyl)bis
2,3-diphenyl-2,3-dimethylbutane
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