Disperse Red 1

Disperse Red 1

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Disperse Red 1 is a kind of disperse dyes. Disperse dyes are dyes with relatively small molecules and no water-soluble groups in the structure. It must use a dispersant to evenly disperse the dye in the dyeing liquor during dyeing to dye polyester and other fibers.

Name: Disperse red 1

Other names: C.I. 11110; C.I. Disperse Red 1; C.I. Solvent Red 14; C.I. Disperse Red 1 (8CI); Disperse red 1; disperse red 1(95%);

CAS Number: 2872-52-8

EINECS number: 220-704-3

Molecular formula: C16H18N4O3

Molecular mass: 314.3391

C.I. 11110

Melting point: 160 ℃

Properties: red powder

Solubility: soluble in ethanol, acetone and benzene.

The purpose of Disperse Red 1:

Disperse Red 1 is mainly used for dyeing polyester fiber (polyester), acetate fiber (diacetate, triacetate) and polyamide fiber (nylon) in chemical fibers, and has a small amount of application for polyacrylonitrile (acrylic).

The chemical fiber textile products printed and dyed by the disperse dye Disperse Red 1 have bright colors, excellent washing fastness and a wide range of uses. Because it is insoluble in water, it has no ability to dye cotton, hemp, wool and silk in natural fibers, and it has almost no staining on viscose fibers. Therefore, chemical fiber blended products usually need to use Disperse Red 1 in conjunction with other applicable dyes. .

Disperse Red 1 molecular structure data

1) Molar refractive index: 87.57

2) Molar volume (m3/mol): 255.1

3) Isotonic specific volume (90.2K): 679.7

4) Surface tension (dyne/cm): 50.3

5) Polarizability (10-24cm3): 34.71

Disperse Red 1 storage method: packed in iron drum lined with plastic bag, stored in a ventilated, dry, cool warehouse, moisture-proof and sun-proof.

Disperse Red 1 synthesis method: p-nitroaniline is diazotized and coupled with N-ethyl-N-hydroxyethyl aniline, then filtered, washed with water, ground, and dried to obtain the original dye.