CAS 36290-04-7 Naphthalene Based Superplasticizer
Sodium Naphthalene Formaldehyde SNF-A Especially used in printing and dyeing
Sodium Naphthalene Formaldehyde is a kind of anionic surfactant with hydrophobic structure composed of methylene connected naphthalene ring and sulfonic acid group as hydrophilic structure. It is widely used as concrete water reducing agent, dye dispersant and coal water slurry dispersant because of its mature synthesis technology and excellent dispersion performance.
| NO | Index items | Standard value | Test Results |
| 1 | Appearance | Yellow Brown powder | Meets the requirement |
| 2 | solids content (%) | 91min | 91.86 |
| 3 | content of cl- (%) | 0.5max | 0.12 |
| 4 | PH value | 7-9 | 8.09 |
| 5 | free fromaldehyde content (mg/kg) | 300max | 158 |
| 6 | Na2SO4 content (%) | 5max | 4.84 |
| 7 | degree of fineness | 0.5max | 0.23 |
| 8 | dispersion forces | 95min | 96.2 |
| 9 | water-reducing reat | 18min | 18.9 |
|
Conclusion |
Complies with requirements . | ||
Application
SNF is mainly used as dispersant in disperse dyes, VAT dyes, acid dyes and leather dyes. It has excellent grinding effect, solubility and dispersity.It can also be used in textile printing and dyeing, wetting pesticide dispersant, paper making dispersant, electroplating additive, water-soluble coating, pigment dispersant, water treatment agent, carbon black dispersant, etc.
SNF is mainly used in industry for VAT suspension pad dyeing, cryptic acid dyeing, dispersing in soluble VAT dyeing, etc.It can also be used for dyeing silk/wool interwoven fabrics, so that there is no color on silk.In the dye industry, SNF is mainly used as a diffusion aid in dispersion and lake manufacturing, as a rubber emulsion stabilizer, and as a leather tannin aid.
Package and Storage:
(1) The product comes in the form of powdery.The powdery form is packed in PE/PP woven bags, 25kg/package; Jumbo bag.
(2) Keep away from moisture.
(3) The product is non-flammable, non-toxic, non-explosive, and can be stored for a long time.
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