N-Cyclohexyl-2-benzothiazolesulfenamide Property

Melting point:

93-100°C

Boiling point:

410.4±28.0 °C(Predicted)

Density 

1.31~1.34g/cm3

vapor pressure 

0Pa at 25℃

refractive index 

1.5700 (estimate)

storage temp. 

Keep in dark place,Sealed in dry,Room Temperature

solubility 

Chloroform (Slightly), DMSO (Slightly), Ethyl Acetatae (Slightly)

form 

Solid

pka

0.59±0.10(Predicted)

color 

Pale Yellow to Light Beige

Water Solubility 

Insoluble

InChIKey

DEQZTKGFXNUBJL-UHFFFAOYSA-N

LogP

5 at 25℃

CAS DataBase Reference

95-33-0(CAS DataBase Reference)

EPA Substance Registry System

N-Cyclohexyl-2-benzothiazolesulfenamide (95-33-0)

Safety

Hazard Codes 

Xi,N

Risk Statements 

36/37/38-50/53-43

Safety Statements 

26-36/37/39-61-60-37-24

RIDADR 

3077

RTECS 

DL6250000

HS Code 

2934.20.8000

HazardClass 

9

PackingGroup 

III

Hazardous Substances Data

95-33-0(Hazardous Substances Data)

Toxicity

LD50 oral in rat: 5300mg/kg

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H317May cause an allergic skin reaction

H319Causes serious eye irritation

H360May damage fertility or the unborn child

H373May cause damage to organs through prolonged or repeated exposure

H410Very toxic to aquatic life with long lasting effects

Precautionary statements

P201Obtain special instructions before use.

P202Do not handle until all safety precautions have been read and understood.

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P272Contaminated work clothing should not be allowed out of the workplace.

P273Avoid release to the environment.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P308+P313IF exposed or concerned: Get medical advice/attention.

P391Collect spillage. Hazardous to the aquatic environment

P405Store locked up.

P501Dispose of contents/container to..…

N-Cyclohexyl-2-benzothiazolesulfenamide Chemical Properties,Usage,Production

Description

N-Cyclohexyl-2-benzothiazolesulfenamide is a rubber accelerator chemical. The most frequent occupational categories are metal industry, homemakers, health services and laboratories, and building industries.

Uses

N-Cyclohexylbenzo[d]thiazole-2-sulfonamide is useful for the production of sulfur-modified chloroprene rubber.

Definition

N-Cyclohexyl-2-benzothiazolesulfenamide (CBS) is one of the important kinds of sulfenamide vulcanization accelerator, have an anti-incipient scorch and the big advantage of curingprocess rate fast two concurrently in natural rubber, butadiene-styrene rubber, butadiene rubber, isoprene rubber, it is particularly suited for the furnace black sizing material that alkalescence is higher, variable colour and pollution are slight, and volume of production and the consumption of the most external CBS account for the 50% of thiazoles sulfuration chemicals total amount. In recent years, along with China's radial development, the demand for accelerator CBS has also presented the longest trend.

Production Methods

The synthetic method of N-Cyclohexyl-2-benzothiazolesulfenamide (CBS) mainly has sodium hypochlorite oxidization, Oxygen Catalytic Oxidation method, electrolytic oxidation, chlorine oxidation process, hydrogen peroxide oxidation method etc. at present, oxidizing process has raw material and is easy to get, the advantages such as equipment requirements is the highest. Product yield is high, and technique is simple and widely used by institute both at home and abroad. This method is to carry out condensation with 2-benzothiazolyl mercaptan (hereinafter referred to as M) in the presence of an oxidizer with cyclohexylamine to generate CBS.

Synthesis Reference(s)

The Journal of Organic Chemistry, 43, p. 3223, 1978 DOI: 10.1021/jo00410a025

Flammability and Explosibility

Not classified

Contact allergens

A rubber accelerator chemical. The most frequent occupational categories are metal industry, homemakers health services and laboratories, and the building industry.

Safety Profile

A poison by intravenous route. Questionable carcinogen with experimental tumorigenic data. An experimental teratogen. Experimental reproductive effects. When heated to decomposition it emits toxic fumes of SOx and NOx.