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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Endpoint summary

Administrative data

Description of key information

Appearance:

On the basis of physical observation ,the chemical Methylammonium chloride was observed to be Light yellow coloured crystalline powder in appearance.

Melting point:

The melting point determination of Methylammonium chloride (CAS No. 593-51-1) was done following OECD Guideline 102 and according to the metal block capillary method. The test was conducted in replicates and mean melting temperature range was determined to be 209.3 °C -215.3°C at 977.8 hPa.

Boiling point:

The boiling point determination of Methylammonium chloride (CAS No. 593-51-1) was done following OECD Guideline 103 and according to the method of Siwoloboff. The boiling point was determined to be greater than 250°C at 978.4 hPa.

Density:

The density of test item Methylammonium chloride (CAS No. 593-51-1)was determined following OECD Guideline 109 and according to the Test methods: Pour density and tapped density of powders” recommended in The International Pharmacopoeia, Fourth Edition, 2014 using bulk density apparatus .The mean pour density and tapped density of test item is was determined to be 0.4886 g/cm3 and 0.5284 g/cm3 at 26.9°C and 979.3 hPa.

Particle Size Distribution:

The particle size distribution of test item Methylammonium chloride (CAS No. 593-51-1 ) was determined by granulometric analysis with rotap sieve shaker. The particle size distribution was determined to be in the range of 150 micron to 106 micron.

Vapor Pressure:

Data from handooks and authoritative databases suggests that the estimated vapour pressure  of Methylamine hydrochloride was 0.00101 mm Hg = 0.134 Pa at 25 degC.

Partition Coefficient:

Data from handbooks and various authoritative databases suggests that the estimated octanol water partition coefficient of Methylamine hydrochloride was –3.820.

This value suggests that methylamine hydrochloride is hydrophilic in nature, which is also supported by its high solubility in water.

Water Solubility:

The experimental water solubility of Methylamine hydrochloride at 20 deg C was 1080mg/l

Data from handbooks and authoritative databases suggests that the estimated water solubility of Methylamine hydrochloride at 25 deg C was 1000000 mg/L.

The experimental and estimated values indicate that Methylamine hydrochloride is highly soluble in water.

Surface tension:

Based on the data from ACD labs, surface tension for test item methylammonium chloride (593 -51 -1) was predicted to be 18.4±3.0 dyne/cm.

Flash point:

The flash point determination of Methylammonium chloride(CAS No. 593-51-1) was done as per the test guideline OECD 103. The method is closed cup method using Pensky Martin’s Flash Point Apparatus. The flashpoint of the test substance was determined to be 209.3 °C at 976.4 hPa. Based on criteria mentioned in CLP regulation the chemical has flash point >than 60 degree C hence the substance was considered to be non-flammable.

Autoflammability:

Methylammonium chloridedid not catch fire on being exposed to air at room temperature of 27°C and atmospheric pressure of 966 hPa. This indicates thatMethylammonium chlorideis not auto-flammable.

Flammability:

Methylammonium chloride does not indicate any ignition when the flame of bunsen burner having temperature of approximately 950°C is brought in contact with it. Thus it can be concluded that Methylammonium chloride is not flammable at high temperature. However since such high temperatures are not found under normal circumstances of transportation and use, thus Methylammonium chloride was considered non-flammable for chemical safety assessment.

Explosivenss:

The study does not need to be conducted because there are no chemical groups present in the molecule which are associated with explosive properties.

Oxidising properties:

The study does not need to be conducted because the organic substance contains oxygen or halogen atoms which are chemically bonded only to carbon or hydrogen and hence, the classification procedure does not need to be applied

pH:

The pH determination of test item Methyl ammonium chloride (CAS No 593-51-1) was done following OECD guideline 122. pH of 1% w/v solution was measured with the help of pH meter and it was observed to be 5.51 at 29 °C. As laboratory report has K1 reliability was considered as a key.

Viscosity:

The study does not need to be conducted because the substance is a solid

Additional information

Appearance:

On the basis of physical observation ,the chemical Methylammonium chloride was observed to be Light yellow coloured crystalline powder in appearance.

Other supporting studies from various reliable sources such as authoritative database and handbooks also suggests that the chemical Methylammonium chloride was observed to be white coloured Hygroscopic crystals in appearance.

Melting point:

The melting point determination of Methylammonium chloride (CAS No. 593-51-1) was done following OECD Guideline 102 and according to the metal block capillary method. The test was conducted in replicates and mean melting temperature range was determined to be 209.3 °C -215.3°C at 977.8 hPa.

other supporting studies from various reliable sources such as authoritative database and handbok indicates that the melting point of chemical Methylamine hydrochloride was detetrmined to be  to be in the range of 227.5 to 233°C

As the data from lab has K1 reliability and the test was performed using OECD guidelines which has the value of melting point temperature as 209.3 degree C to 215.3 degree C thus considered as key study for the chemical safety assessment.

Boiling point:

The boiling point determination of Methylammonium chloride (CAS No. 593-51-1) was done following OECD Guideline 103 and according to the method of Siwoloboff. The boiling point was determined to be greater than 250°C at 978.4 hPa.

other supporting study from reliable handbooks indicates that the boiling point of chemical Methylammonium chloride was determined to be 227 degree C at 1.5 mm Hg.

As the data from lab has K1 reliability and the test was performed using OECD guidelines which has the value of boiling point temperature as greater than 250 degree C thus considered as key study for the chemical safety assessment.

Density:

The density of test item Methylammonium chloride (CAS No. 593-51-1)was determined following OECD Guideline 109 and according to the Test methods: Pour density and tapped density of powders” recommended in The International Pharmacopoeia, Fourth Edition, 2014 using bulk density apparatus .The mean pour density and tapped density of test item is was determined to be 0.4886 g/cm3 and 0.5284 g/cm3 at 26.9°C and 979.3 hPa.

Based on prediction done using ACD/I-Lab 2.0,the density of chemical Methylammonium chloride was estimated to be 0.637 ± 0.06 g/cm3.

As the data from lab has K1 reliability and the test was performed using OECD guidelines which has the value of density as 0.4886 g/cm3(pour density) and 0.5284 (tapped density), thus considered as key study for the chemical safety assessment.

Particle Size Distribution:

The particle size distribution of test item Methylammonium chloride (CAS No. 593-51-1 ) was determined by granulometric analysis with rotap sieve shaker. The particle size distribution was determined to be in the range of 150 micron to 106 micron.

Partition Coefficient:

Data from handbooks and various authoritative databases suggests that the estimated octanol water partition coefficient of Methylamine hydrochloride was –3.820.

This value suggests that methylamine hydrochloride is hydrophilic in nature, which is also supported by its high solubility in water.

Water Solubility:

The experimental water solubility of Methylamine hydrochloride at 20 deg C was 1080mg/l

Data from handbooks and authoritative databases suggests that the estimated water solubility of Methylamine hydrochloride at 25 deg C was 1000000 mg/L.

The experimental and estimated values indicate that Methylamine hydrochloride is highly soluble in water.

Surface tension:

Based on the data from ACD labs, surface tension for test item methylammonium chloride (593 -51 -1) was predicted to be 18.4±3.0 dyne/cm.

Flash point:

The flash point determination of Methylammonium chloride(CAS No. 593-51-1) was done as per the test guideline OECD 103. The method is closed cup method using Pensky Martin’s Flash Point Apparatus. The flashpoint of the test substance was determined to be 209.3 °C at 976.4 hPa. Based on criteria mentioned in CLP regulation the chemical has flash point >than 60 degree C hence the substance was considered to be non-flammable.

Autoflammability:

Methylammonium chloridedid not catch fire on being exposed to air at room temperature of 27°C and atmospheric pressure of 966 hPa. This indicates thatMethylammonium chlorideis not auto-flammable.

Flammability:

Methylammonium chloride does not indicate any ignition when the flame of bunsen burner having temperature of approximately 950°C is brought in contact with it. Thus it can be concluded that Methylammonium chloride is not flammable at high temperature. However since such high temperatures are not found under normal circumstances of transportation and use, thus Methylammonium chloride was considered non-flammable for chemical safety assessment.

Explosivenss:

The study does not need to be conducted because there are no chemical groups present in the molecule which are associated with explosive properties.

Oxidising properties:

The study does not need to be conducted because the organic substance contains oxygen or halogen atoms which are chemically bonded only to carbon or hydrogen and hence, the classification procedure does not need to be applied

pH:

The pH determination of test item Methyl ammonium chloride (CAS No 593-51-1) was done following OECD guideline 122. pH of 1% w/v solution was measured with the help of pH meter and it was observed to be 5.51 at 29 °C. As laboratory report has K1 reliability was considered as a key.

 In supporting data from gestis database, the pH of methyl ammonium chloride (593-51-1) was determined to be 5-7 at 20 degree C in 10 g/l concentration.

Thus, pH of Methyl ammonium chloride (CAS No 593-51-1) was determined to be 5.51 at 29 °C.

Viscosity:

The study does not need to be conducted because the substance is a solid