NextSDS Logo
Safety Data Sheet EN

2-Methyl-2-propanethiol

CAS 75-66-1
EC 200-890-2

Scan your chemical compliance

Free 10-second scan. Upload a document and check compliance instantly.

Scan Now
01

Identification

Product identifiers, regulatory numbers, and supplier information

Product Information

Product Name
2-Methyl-2-propanethiol
Product Code
109207
Chemical Name
tert-Butyl mercaptan

Regulatory Identifiers

CAS Number
75-66-1 Check regulations →
EC Number
200-890-2 Check regulations →

Identified Uses

Laboratory chemicals, Synthesis of substances

Manufacturers & Suppliers

S

Sigma-Aldrich

manufacturer

3050 Spruce Street SAINT LOUIS MO 63103 USA

+1 800-325-5832

Emergency Contacts

CHEMTREC

+1-703-527-3887

02

Hazard Identification

GHS classification, signal word, pictograms, and hazard statements

Classified danger

Hazard Classifications

Flam. Liq. Cat. 2 H225
Skin Sens. Cat. 1 H317
Aquatic Acute Cat. 2 H401
Aquatic Chronic Cat. 2 H411

GHS Pictograms

GHS02 - Flammable

GHS02

GHS07 - Health hazard

GHS07

GHS09 - Environmental hazard

GHS09

Hazard Statements

H225 Highly flammable liquid and vapour.
H317 May cause an allergic skin reaction.
H411 Toxic to aquatic life with long lasting effects.

Precautionary Statements

P210 Keep away from heat/sparks/open flames/hot surfaces. No smoking.
P233 Keep container tightly closed.
P240 Ground/bond container and receiving equipment.
P241 Use explosion-proof electrical/ ventilating/ lighting/ equipment.
P242 Use only non-sparking tools.
P243 Take precautionary measures against static discharge.
P261 Avoid breathing dust/ fume/ gas/ mist/ vapours/ spray.
P272 Contaminated work clothing should not be allowed out of the workplace.
P273 Avoid release to the environment.
P280 Wear protective gloves/ eye protection/ face protection.
P303+P361+P353 IF ON SKIN (or hair): Remove/ Take off immediately all contaminated clothing. Rinse skin with water/ shower.
P333+P313 If skin irritation or rash occurs: Get medical advice/ attention.
P363 Wash contaminated clothing before reuse.
P370+P378 In case of fire: Use dry sand, dry chemical or alcohol-resistant foam for extinction.
P391 Collect spillage.
P403+P235 Store in a well-ventilated place. Keep cool.
P501 Dispose of contents/ container to an approved waste disposal plant.

Manage your Safety Data Sheets

Organize and access chemical safety data with ease

Manage SDS
03

Composition / Information on Ingredients

Chemical components, concentration ranges, and hazardous substance identification

Chemical Name CAS Number Concentration Hazardous
tert-Butyl mercaptan EC: 200-890-2 75-66-1 90 - 100% Yes
04

First Aid Measures

Emergency procedures for chemical exposure incidents

Inhalation

If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician.

Skin contact

Wash off with soap and plenty of water. Consult a physician.

Eye contact

Flush eyes with water as a precaution.

Ingestion

Do NOT induce vomiting. Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician.

05

Firefighting Measures

Extinguishing media, specific hazards, and firefighter protection

The data for this section has not been processed yet.

06

Accidental Release Measures

Spill cleanup procedures, containment, and environmental protection

The data for this section has not been processed yet.

Related Products

Similar products with comparable safety profiles

07

Handling and Storage

Safe handling precautions, storage conditions, and workplace requirements

The data for this section has not been processed yet.

08

Exposure Controls / PPE

Occupational exposure limits, engineering controls, and protective equipment

Engineering

Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday.

Hands

Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique (without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. Full contact Material: Fluorinated rubber Minimum layer thickness: 0.7 mm Break through time: 480 min Material tested: Vitoject® (KCL 890 / Aldrich Z677698, Size M) Splash contact Material: Fluorinated rubber Minimum layer thickness: 0.7 mm Break through time: 480 min Material tested: Vitoject® (KCL 890 / Aldrich Z677698, Size M) data source: KCL GmbH, D-36124 Eichenzell, phone +49 (0)6659 87300, e-mail sales@kcl.de, test method: EN374 If used in solution, or mixed with other substances, and under conditions which differ from EN 374, contact the supplier of the CE approved gloves. This recommendation is advisory only and must be evaluated by an industrial hygienist and safety officer familiar with the specific situation of anticipated use by our customers. It should not be construed as offering an approval for any specific use scenario.

Eyes

Face shield and safety glasses Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).

Respiratory

Where risk assessment shows air-purifying respirators are appropriate use a full-face respirator with multi-purpose combination (US) or type AXBEK (EN 14387) respirator cartridges as a backup to engineering controls. If the respirator is the sole means of protection, use a full-face supplied air respirator. Use respirators and components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU).

Environmental

Prevent further leakage or spillage if safe to do so. Do not let product enter drains. Discharge into the environment must be avoided.

09

Physical and Chemical Properties

Appearance, physical state, melting point, boiling point, and material characteristics

Partition Coefficient
log Pow: 1.786
Upper Explosive Limit
No data available
Odor Threshold
No data available
Evaporation Rate
No data available
Voc Content
---
Ph
5.8
Dynamic Viscosity
No data available
Flammability
No data available
Vapor Pressure
404.6 hPa
Softening Point
---
Auto Ignition Temperature
255 °℃
Solubility In Fat
---
Properties Status
---
Flash Point
-25 ℃
Explosive Limits
---
Physical State Data
liquid
Colour
colourless
Density
---
Metal Corrosion
---
Colour Intensity
---
Form
---
Solubility
1.4 g/l at 20 °℃ - soluble
Odor
unpleasant
Physical State
liquid
Solidification Point
---
Relative Density
0.8 g/cm3
Melting Point
-0.5 ℃
Cloud Point
---
Vapor Density
3.11
Appearance
clear, liquid
Solubility In Water
1.4 g/l at 20 °℃
Decomposition Temperature
No data available
Bulk Density
---
Kinematic Viscosity
---
Molecular Weight
---
Freezing Point
---
Relative Evaporation Rate
---
Boiling Point
62 - 65 ℃
Lower Explosive Limit
No data available
State Under Standard Conditions
---
Crystallisation Point
---
10

Stability and Reactivity

Chemical stability, hazardous reactions, and incompatible materials

The data for this section has not been processed yet.

12

Ecological Information

Environmental toxicity, biodegradation, and bioaccumulation data

The data for this section has not been processed yet.

13

Disposal Considerations

Waste treatment methods, disposal recommendations, and waste codes

The data for this section has not been processed yet.

14

Transport Information

UN numbers, shipping names, transport classes, and regulatory requirements

UN Number
2347
Shipping Name
Butyl mercaptans
Transport Class
3
Packing Group
II
15

Regulatory Information

Chemical regulations, safety assessments, and compliance status

The data for this section has not been processed yet.

?

Frequently Asked Questions

Common questions about safety, handling, and properties

What is the hazard signal word for 2-Methyl-2-propanethiol?

The signal word is danger.

What is the physical form of 2-Methyl-2-propanethiol?

2-Methyl-2-propanethiol is a liquid appearing as clear, liquid with colourless color. It has unpleasant odor.

What is the solubility of 2-Methyl-2-propanethiol?

1.4 g/l at 20 °℃ - soluble

What is 2-Methyl-2-propanethiol used for?

Laboratory chemicals, Synthesis of substances

What are the hazard statements for 2-Methyl-2-propanethiol?

This substance has 3 hazard statements:

  • H225: Highly flammable liquid and vapour.
  • H317: May cause an allergic skin reaction.
  • H411: Toxic to aquatic life with long lasting effects.

What is the melting point of 2-Methyl-2-propanethiol?

The melting point is -0.5 ℃ and the boiling point is 62 - 65 ℃.

Compliance Scanner

Scan your compliance