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Physical & Chemical properties

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Physical and chemical properties

Reaction mass of O-isopropyl ethylthiocarbamate (85 -98%) and n-butanol (1% -10 %) and propan-2-ol (1%- 5%)


1.Appearance

Reaction mass of O-isopropyl ethylthiocarbamate and n-butanol and propan-2-ol is colourless to straw oily liquid with characteristic odour, modetely soluble in water, very soluble in alcohol, ethyl ether, benzene and petroleum ether etc

 2.Odour

Characteristic

 

3.Melting point

Using the EPI Suite Mpbwin (v.1.43) QSAR model, a Melting Point of   -46.48 deg C (Weighted Value) was established.

4.Boiling point

Using the EPI Suite Mpbwin (v.1.43) QSAR model, a Boiling Point of 187.17 deg C (estimated) was established.

 5.Specific gravity

The relative density of Reaction mass of O-isopropyl ethylthiocarbamate (98%) and n-butanol (1%) and propan-2-ol (1%) is 0.99-1.004 measured at at 20 degree celcius .

 6.Vapour pressure

A QSAR method predicts the vapour pressure of this substance to be 90.7 Pa at 25C.

 

7.Water solubility

Substance is predicted by QSAR method (EPI Suite v 4.1/WSKOW v1.42 ) to be moderately soluble 114.4 mg/l ( 100-1000 mg/l) with water.

Substance is predicted by QSAR method to be soluble( 1673.6 mg/l) with water .

 

8.Partition co-efficient

A reliable QSAR method predicts a value for the partition co-efficient (logKow) of 3.32 for this substance.

 

9.Hydrolysis as a function of pH

Reaction mass of O-isopropyl ethylthiocarbamate (98%) and n-butanol (1%) and propan-2-ol (1%) (IPETC) was hydrolytically stable (half life > 1 year) specified by the OECD Guidelines.

 10.Adsorption/desorption

The log of the adsorption coefficient (KOC) of Isopropyl Ethyl Thionocarbamate (IPETC ) was estimated to be log KOC = 1.8988 which is equal to a KOC value of 79.22 using the KOCWIN v2.00 QSAR method.

This value indicates that Isopropyl Ethyl Thionocarbamate (IPETC ) will be adsorbed by organic carbon in soil.Isopropyl Ethyl Thionocarbamate (IPETC ) can be classified to be of very high mobility in soil according these results and does not have a high potential for adsorption to soil. Isopropyl Ethyl Thionocarbamate (IPETC ) adsorbs strongly to sulphide minerals but has less affinity for surfaces in general. The KOC value of 79.22 also suggest this conclusion.

 

11.Dissociation constant

 A dissociation constant value of >8.5 was obtained using an accepted calculation method. The result is considered to be reliable.

 

 12.Flammability

Theclassification is made because Reaction mass of O-isopropyl ethylthiocarbamate and n-butanol and propan-2-ol contains propan-2-ol which is flammable.

From the compositional description and the structural formula given, it can be concluded that this substance Reaction mass of O-isopropyl ethylthiocarbamate (98%) and n-butanol (1%) and propan-2-ol (1%) is not pyrophoric (will not ignite or emit flammable gases on contact with air, damp air, or water) nor does it exhibit the property of flammability (will not easily burn when ignited or contribute to the combustion of other materials). There are no functional groups or other structural alerts present that would support any concern that this substance should be classified as dangerous according to the criteria for evaluating flammability, which is furthermore confirmed by long term handling experience.

According “ANNEX VII - STANDARD INFORMATION REQUIREMENTS FOR SUBSTANCES MANUFACTURED OR IMPORTED IN QUANTITIES OF ONE TONNE OR MORE” the study does not need to be conducted if the substance is incapable of reacting exothermically with combustible materials, on the basis of the chemical structure. This product is mostly nonflammable and non-combustible. Its functional groups indicate no Flammability . Flammability is not considered critical.

Materials in this group are generally nonflammable. They may accelerate the combustion of other materials by providing oxygen to the combustion site, that is, by serving as oxidizing agents.

Propan-2-ol (Isopropyl alcohol) is flammable in a range between 2 and 13 % (v/v) in air.Propan-2-ol (Isopropyl alcohol) is both reagents used in the manufacture of Reaction mass of O-isopropyl ethylthiocarbamate and n-butanol and propan-2-ol. Therefore, Propan-2-ol (Isopropyl alcohol) need to be considered in the assessment of Reaction mass of O-isopropyl ethylthiocarbamate and n-butanol  and propan-2-ol . 

Flammable (liquid).

  

13.Decomposition temperature

Not determined

 

14.Decomposition products

Carbon monoxide; cardon dioxide; oxides of nitrogen; oxides of sulphur (includes sulphur di and tri oxides)

 

15.Autoignition temperature

399 oC at for Propan-2-ol

Not applicable to Reaction mass of O-isopropyl ethylthiocarbamate (98%) and n-butanol (1%) and propan-2-ol (1%).Propan-2-ol (1%) (CAS number 67-63-0)Butan-1-ol(CAS number 67-63-0)areone of product of Reaction mass of O-isopropyl ethylthiocarbamate (98%) and n-butanol (1%) and propan-2-ol (1%). Propan-2-ol has an auto flammability temperature of 399 oC at ambient pressure.Butan-1-ol(CAS number 67-63-0) has an auto flammability temperature of 343 oC at ambient pressure.

Due to that Propan-2-ol (1%) (CAS number 67-63-0)and Butan-1-ol (CAS number 67-63-0) are one of product of Reaction mass of O-isopropyl ethylthiocarbamate (98%) and n-butanol (1%).Propan-2-ol (1%) (CAS number 67-63-0) and Butan-1-ol(CAS number 67-63-0) has to be considered.

 

16.Reactivity

Stable

 

17.Incompatible materials

Oxidising materials. The product is corrosive to copper and brass.

   

18.Oxidizing properties

This product no has oxidizing properties.

An oxidizing substance is one that, while in itself not necessarily combustible, may cause or contribute to the combustion of other material.

Oxidising substances generally act by yielding oxygen; however, those that release active halogens can also react as oxidants.

Due to the absence of chemical groups associated with oxidizing properties or other structural alerts this substance is not considered to exhibit oxidizing properties.

 But xanthates are susceptible to oxidation and can reacts with oxidising agents to form dixanthogens.

 

19.Explosivity

This product no has explosive properties.

 From the compositional description and the structural formula given, it can be concluded that this substance Reaction mass of O-isopropyl ethylthiocarbamate (98%) and n-butanol (1%) and propan-2-ol (1%) does not exhibit explosive properties (will not detonate or deflagrate, under conditions of excessive heating with or without confinement, impact, or friction to produce heat and or gas). There are no functional groups or other structural alerts associated with explosive properties or tendencies that would indicate that this substance will manifest explosive properties. Similarly, the calculated Oxygen Balance is less than -200 suggesting that testing need not be conducted and that a negative result can be predicted. Thus, this substance should not be classified as dangerous according to the criteria for explosivity, which is furthermore confirmed by long term handling experience.

20.Viscosity

The viscosity of the test substance was measured using a rotational spindle method at 20 degrees C. The viscosity of the test substance was <2.2 mPa · s .

21.Dissociation constant

A dissociation constant value of >8.5 was obtained using an accepted calculation method.

22.Flash point

A closed cup flash point value of 80ºC is reported in a collection of reliable data which has been subject to peer-review .