Nitric acid, ammonium calcium salt

Particle size distribution (Granulometry)

Link to relevant study record(s)

Reference

Endpoint:

particle size distribution (granulometry)

Type of information:

experimental study

Adequacy of study:

key study

Study period:

15 April 2010- 06 July 2010

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

other: CIPAC, Physico-chemical Methods for Technical and Formulated Pesticides, MT 59: "Sieve Analysis"; CIPAC Handbook Volume F, 1995.

Deviations:

no

Principles of method if other than guideline:

Dry-sieving

GLP compliance:

yes (incl. QA statement)

Type of method:

sieving

Type of distribution:

mass based distribution

Key result

Percentile:

D50

Mean:

> 2 000 µm

St. dev.:

0

No.:

#1

Size:

< 100 µm

Distribution:

< 0.1 %

No.:

#2

Size:

> 100 - < 180 µm

Distribution:

< 0.1 %

No.:

#3

Size:

> 180 - < 250 µm

Distribution:

< 0.1 %

No.:

#4

Size:

> 250 - < 500 µm

Distribution:

< 0.1 %

No.:

#5

Size:

> 500 - < 2 000 µm

Distribution:

0.7 %

No.:

#6

Size:

> 2 000 µm

Distribution:

99.3 %

In the receiver pan (i.e. the fraction < 100 µm), <0.1% of test material was collected.

Conclusions:

The particle size distribution of CN-Nitcal was determined using the CIPAC MT 59 dry-sieve method. The fraction of test material < 100 µm was <0.1%. The fraction 500-2000 µm and > 2000 µm were determined to be 0.7% and 99.3%, resp. MMAD is > 2000 µm.

Description of key information

The particle size distribution of CN-Nitcal was determined using the CIPAC MT 59 dry-sieve method.  The fraction of test materiall < 100 µm was <0.1%.  The fraction 500-2000 µm and > 2000 µm were determined to be 0.7% and 99.3%, resp.  MMAD is > 2000 µm.