trimethylthioacetic S-acid

Modify Date: 2024-01-11 17:17:15

trimethylthioacetic S-acid Structure
trimethylthioacetic S-acid structure
Common Name trimethylthioacetic S-acid
CAS Number 55561-02-9 Molecular Weight 118.19700
Density 0.966 g/cm3 Boiling Point 126ºC at 760mmHg
Molecular Formula C5H10OS Melting Point N/A
MSDS N/A Flash Point 23.9ºC

 Names

Name 2,2-dimethylpropanethioic S-acid
Synonym More Synonyms

 Chemical & Physical Properties

Density 0.966 g/cm3
Boiling Point 126ºC at 760mmHg
Molecular Formula C5H10OS
Molecular Weight 118.19700
Flash Point 23.9ºC
Exact Mass 118.04500
PSA 55.87000
LogP 1.48890
Index of Refraction 1.453

 MSDS

Name: Thiopivalic acid 97% Material Safety Data Sheet
Synonym: Trimethylthiolacetic aci
CAS: 55561-02-9
Section 1 - Chemical Product MSDS Name:Thiopivalic acid 97% Material Safety Data Sheet
Synonym:Trimethylthiolacetic aci

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content EINECS#
55561-02-9 Thiopivalic acid, 97% 259-708-5
Hazard Symbols: C
Risk Phrases: 10 35

Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
Flammable. Causes severe burns.Stench.
Potential Health Effects
Eye:
Contact with eyes may cause severe irritation, and possible eye burns.
Skin:
May cause severe irritation and possible burns.
Ingestion:
Not available.
Inhalation:
May cause severe irritation of the respiratory tract with sore throat, coughing, shortness of breath and delayed lung edema. 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.
Skin:
Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Ingestion:
Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
Inhalation:
Remove from exposure and move to fresh air immediately.
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.
Extinguishing Media:
Not available.

Section 6 - ACCIDENTAL RELEASE MEASURES
General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Absorb spill with inert material (e.g. vermiculite, sand or earth), then place in suitable container.

Section 7 - HANDLING and STORAGE
Handling:
Not available.
Storage:
Flammables-area.

Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
Engineering Controls:
Use adequate general or local exhaust ventilation to keep airborne concentrations below the permissible exposure limits.
Exposure Limits CAS# 55561-02-9: Personal Protective Equipment Eyes: Wear safety glasses and chemical goggles if splashing is possible.
Skin:
Wear appropriate protective gloves and clothing to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to minimize contact with skin.
Respirators:
Wear a NIOSH/MSHA or European Standard EN 149 approved full-facepiece airline respirator in the positive pressure mode with emergency escape provisions.

Section 9 - PHYSICAL AND CHEMICAL PROPERTIES

Physical State: Liquid
Color: colorless
Odor: None reported.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: 125.0 - 127.0 deg C @ 760.00m
Freezing/Melting Point: 0 deg C
Autoignition Temperature: Not available.
Flash Point: 23 deg C ( 73.40 deg F)
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water:
Specific Gravity/Density: .9300g/cm3
Molecular Formula: C5H10OS
Molecular Weight: 118.19

Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Not available.
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# 55561-02-9 unlisted.
LD50/LC50:
Not available.
Carcinogenicity:
Thiopivalic acid, 97% - 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 LIQUID, FLAMMABLE, N.O.S.*
Hazard Class: 8 (3)
UN Number: 2920
Packing Group: II
IMO
Shipping Name: CORROSIVE LIQUID, FLAMMABLE, N.O.S.
Hazard Class: 8 (3)
UN Number: 2920
Packing Group: II
RID/ADR
Shipping Name: CORROSIVE LIQUID, FLAMMABLE, N.O.S.
Hazard Class: 8
UN Number: 2920
Packing group: II

Section 15 - REGULATORY INFORMATION

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: C
Risk Phrases:
R 10 Flammable.
R 35 Causes severe burns.
Safety Phrases:
S 16 Keep away from sources of ignition - No
smoking.
S 24/25 Avoid contact with skin and eyes.
WGK (Water Danger/Protection)
CAS# 55561-02-9: No information available.
Canada
None of the chemicals in this product are listed on the DSL/NDSL list.
CAS# 55561-02-9 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 55561-02-9 is not listed on the TSCA inventory.
It is for research and development use only.


SECTION 16 - ADDITIONAL INFORMATION
N/A

 Safety Information

RIDADR UN 2920
Packaging Group II
Hazard Class 8

 Synthetic Route

~84%

trimethylthioacetic S-acid Structure

trimethylthioac...

CAS#:55561-02-9

Literature: Nomura, Ryoki; Miyazaki, Shin-Ichiro; Nakano, Takahiro; Matsuda, Haruo Chemische Berichte, 1990 , vol. 123, # 10 p. 2081 - 2082

~72%

trimethylthioacetic S-acid Structure

trimethylthioac...

CAS#:55561-02-9

Literature: Toriyama, Masaharu; Kamijo, Haruo; Motohashi, Shigeyasu; Takido, Toshio; Itabashi, Kunio Phosphorus, Sulfur and Silicon and the Related Elements, 2003 , vol. 178, # 8 p. 1661 - 1665

~67%

trimethylthioacetic S-acid Structure

trimethylthioac...

CAS#:55561-02-9

Literature: Mueller, Jan; Brunnbauer, Markus; Schmidt, Michael; Zimmermann, Anja; Terfort, Andreas Synthesis, 2005 , # 6 art. no. T10004SS, p. 998 - 1004

 Synonyms

thiolpivalic acid
2-methyl-2-methylthiopropionic acid
Thiopivalic acid
thiolpivaloic acid
S-thiopivalic acid
tert-butyl thioacid
Trimethylthioacetic S-acid
EINECS 259-708-5
Propanethioic acid,2,2-dimethyl
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