Propiconazole TC, EC, SE

Propiconazole TC, EC, SE

PROPICONAZOLE TECHNICAL MATERIAL

FAO Specification 408 / TC (June 2019)

This specification, which is PART ONE of this publication, is based on an evaluation of

data submitted by the manufacturer whose name is listed in the evaluation report

(408/2018). It should be applicable to technical materials produced by this manufacturer

but it is not an endorsement of those products, nor a guarantee that they comply with the

specification. The specification may not be appropriate for TC produced by other manufacturers.

The evaluation report (408/2018), as PART TWO, forms an integral part of this

publication.

1 Description

The material shall consist of propiconazole together with related manufacturing

impurities, in the form of a yellowish viscous liquid/solid and shall be free from visible

extraneous matter and added modifying agents.

2 Active ingredient

2.1 Identity tests (CIPAC/5150)

The active ingredient shall comply with an identity test and where the identity remains in

doubt, shall comply with at least one additional test.

2.2 Propiconazole content (CIPAC/5150)

The propiconazole content shall be declared (not less than 940 g/kg) and when

determined, the average measured content shall not be lower than the declared minimum

content.

PROPICONAZOLE EMULSIFIABLE CONCENTRATE

FAO Specification 408 / EC (June 2019)

This specification, which is PART ONE of this publication, is based on an evaluation of

data submitted by the manufacturer whose name is listed in the evaluation report

(408/2018). It should be applicable to emulifiable concentrates produced by this manufacturer

but it is not an endorsement of those products, nor a guarantee that they comply with

the specification. The specification may not be appropriate for EC produced by other manufacturers.

The evaluation report (408/2018), as PART TWO, forms an integral part of this

publication.

1 Description

The material shall consist of technical propiconazole, complying with the requirements of

FAO specification 408/TC (June 2019), dissolved in suitable solvents together with any

other necessary formulants. It shall be in the form of a stable homogeneous liquid, free

from visible suspended matter and sediment, to be applied as an emulsion after dilution

in water.

2 Active ingredient

2.1 Identity tests (CIPAC/5150)

The active ingredient shall comply with an identity test and, where the identity remains

in doubt, shall comply with at least one additional test.

2.2 Propiconazole content (CIPAC/5150)

The propiconazole content shall be declared (g/kg or g/l at 20 ± 2ºC), and,

when determined, the average content measured shall not differ from that declared by

more than the following tolerances:

Declared content in                            Tolerance

g/kg or g/l at 20 ± 2 °C

up to 25                                  ± 15% of the declared content

above 25 up to 100              ± 10% of the declared content

above 100 up to 250            ± 6% of the declared content

above 250 up to 500            ± 5% of the declared content

above 500                                    ± 25 g/kg or g/l

Note. In each range the upper limit is included.

3. Physical properties

3.1 Emulsion stability and re-emulsification (MT 36.3, CIPAC Handbook K)

The formulation, when diluted at 30 ± 2°C with CIPAC Standard Waters A and D, shall

comply with the following:

Time after dilution         Limits of stability, MT 36.3

0 h                             Initial emulsification complete

0.5 h                          "Cream", maximum: 0.4 mL

2.0 h                          "Cream", maximum: 1 mL

                                   "Free oil", maximum: trace

24 h                           Re-emulsification complete

24.5 h                        "Cream", maximum: 0.4 mL

                                   "Free oil", none

Note: in applying 36.3, tests after 24 h are required only where results at 2 h are in doubt

3.2 Persistent foam (MT 47.3, CIPAC Handbook O, p. 177, 2017)

Maximum: 60 ml after 1 min.

4 Storage stability

4.1 Stability at 0°C (MT 39.3, CIPAC Handbook J, p. 126, 2000)

After storage at 0 ± 2°C for 7 days, the volume of solid and/or liquid which separates

shall not be more than 0.3 ml.

4.2 Stability at elevated temperature (MT 46.3, CIPAC Handbook K, p. 137, p. 2003)

After storage at 54 ± 2°C for 14 days, the determined average active ingredient content

must not be lower than 95% relative to the determined average content found before

storage and the formulation shall continue to comply with the clause for:

- emulsion stability and re-emulsification (3.1)