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Physical & Chemical properties

Density

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Endpoint:
relative density
Type of information:
not specified
Adequacy of study:
weight of evidence
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
abstract
Principles of method if other than guideline:
Abstract only -no details on materials and methods
GLP compliance:
not specified
Type:
relative density
Density:
1.75
Temp.:
20 °C

Abstract only:

D. was measured at -5° for dl-arabinose 1.609, d-xylose 1.535, galactose 1.616, d-mannose 1.554, sorbose 1.611, inositol 1.616, mannitol 1.492, sorbitol 1.472, glyceraldehyde 1.593, gluconolactone 1.610, ascorbic acid 1.714, glyoxal polymer 1.739, paraformaldehyde 1.486, glycolide polymer 1.607, glycogen 1.629, arabonamide 1.468, gluconamide 1.545, formaldoxime 1.434, a,a'-diaminosuccinic acid 1.674, hexamethylbenzene 1.064, fructose 1.580, glycocoll 1.595, dl-serine 1.603, glucosaminic acid 1.618, b-alanine 1.437, l-a-alanine 1.432, glycylglycine 1.554, biuret 1.467, 1, 2-hydrazinedicarboxamide 1.604, carbohydrazide 1.616, oxalic hydrazide 1.458, hydrazine 1.146, semicarbazide 1.484, hydrazomethylcarbonate 1.364, glycolamide 1.415, galactose oxime 1.525,cyanuric acid 1.753, parabanic acid 1.712, alloxan 1.839, hexamethylenetetramine 1.331, and di-Et 1,2-hydrazinedicarboxylate 1.324

Conclusions:
Cyanuric acid has a density of 1.753
Endpoint:
density, other
Remarks:
Specific gravity
Type of information:
other: handbook data
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Principles of method if other than guideline:
No method stated. Handbook data which provides results only.
GLP compliance:
not specified
Type:
other: Specific gravity
Density:
1.77
Temp.:
20 °C
Conclusions:
The specific gravity of cyanuric acid is 1.768 g/ml
Endpoint:
relative density
Type of information:
calculation (if not (Q)SAR)
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment
Principles of method if other than guideline:
The relative denisty of cyanuric acid was able to be calculated from crystallographic data. This is an accurate measurement of specific gravity.
Type:
relative density
Density:
1.78
Temp.:
23 °C

Table 1: Crystallographic data for cyanuric acid

Space group C2/n Z =4

Coordinates of the equivalent positions (0,0,0; 1/2, 1/2, 0) +

C (2) N(2), O(2), H(2) m = 8 ± (x, y,z) ± (1/2 - x, y, 1/2 - z)

C (1), N (1), O(1), H(1) m = 4 ± (1/4, y, 1/2)

Cell dimensions:

 

296°K

100°K

a

7.900

7.749

b

6.732

6.736

c

11.951

11.912

beta (°)

130.67

130.697

Table 2: Calculation of density from X-ray data.

Monoclinic cell: V= abc sin(beta) Density (g/mL) = factor x MW x Z/V

a

b

c

beta

Sin beta

Vol

Z

MW

Density

°K

°C

7.749

6.736

11.912

130.69

0.758248

471.46

4

129.08

1.818

100

-173

7.9

6.732

11.951

130.67

0.758476

482.08

4

129.08

1.778

296

23

7.9

6.74

9.04

90

1

481.34

4

129.08

1.781

 

 

Conclusions:
The relative density (specific) gravity of cyanuric acid can be calculated from the crystallographic data as 1.778 g/ml @ 23°C and 1.818 g/ml @ -173°C

Endpoint:
density, other
Remarks:
specific gravity
Type of information:
other: Handbook data
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Principles of method if other than guideline:
No method stated. Handbook data - results provided only
GLP compliance:
not specified
Type:
other: specific gravity
Density:
1.75 other: g/ml
Temp.:
20 °C
Conclusions:
Cyanuric acid has a specific gravity of 1.75 g/ml

Description of key information

Several sources of literature are available. The relative density of cyanuric acid is 1.75.

Key value for chemical safety assessment

Relative density at 20C:
1.75

Additional information