ADIPIC ACID (GOST 10558-80)
Adipic acid HOOC(CH2)4COOH
is white crystalline substance. It possesses all chemical properties of
carboxylic acids. It forms salts most of which are soluble in water.
It easily esterifies
into monoesters and diesters.
In reaction with glycols
adipic acid forms polyesters. Adipic acid salts and esters are called
adipinates.
Adipic acid is used for
production of: hexamethylenediammoniumadipinate (AG-salts),
hexamethylenediammoniumsebacinate (SG-salts), adipic acid esters,
polyurethanes, plasticizers, lubricants.
SPECIFICATION
|
Description
|
Standard
|
|
Higher
grade |
|
|
1. Adipic acid
content, %, max |
99,7 |
|
2. Color index based
on platinum-cobalt scale, Hazen units, max |
5 |
|
3. Melting
temperature, ° C, not lower than |
151,5 |
|
4. Water content, %,
max |
0,27 |
|
5. Ash content, %, max |
0,003 |
|
6. Nitric acid
content, %, max |
0,001 |
|
7. Fe, %, max |
0,0001 |
|
8. Oxidable matter
content based on oxalic acid, %, max |
0,006 |
|
9. Melt color, Pt-Co scale, Hazen units, max |
50 |
Packing:
in PP liner bags.
Transportation: by
railway/water/road, according to the existing rules of goods transportation.
Storage: inside dry
warehouses, at temperatures not exceeding 50°
C.
Guaranteed storage life:
1 year from the production date.