Sodium Polynaphthalenesulfonate
Time: 2012-09-29 16:51:15

Sodium Polynaphthalenesulfonate

Synonyms

Naphthalenesulfonic acid formaldehyde polymer sodium salt;

Naphthalenesulfonic acid, polymer with formaldehyde, sodium salt;

Category

Anionic Surfactant

> Sulfonate

>> Aryl Sulfonate

>>> Naphthyl Sulfonate

>>>> Naphthalenesulfonic acid - Formaldehyde Polymer

Chemical Numbering System

CASRN9084-06-4

EINECSN/A

Molecular Formula & Molecular Weight

Molecular Formula: N/A

Molecular Weight: N/A

Structure

Schematic formula:

Properties

Appearance    (1), brown or dark brown powder.

Solubility    soluble in water.

Stability    stable.

Risk    Solid form: flammable material; irritation, moderate irritation to skin, eye, respiratory. Harmful products of combustion are CO, CO2 and so on. Contact with strong oxidants, can cause to burn.

GHS (Rev.7) label:  

Animal Toxicity

Table 1 Animal toxicity values

rat oral LD50

3800mg/kg[1]

rat intraperitoneal LD50

460mg/kg[1]

rat intravenous LD50

435mg/kg[1]

mouse oral LD50

3400mg/kg[1]

mouse intraperitoneal LD50

315mg/kg[1]

mouse subcutaneous LD50

1275mg/kg[1]

Ecology    may be hazardous to environment. Water body should be given special attention.

Biodegradability    to a certain extent, biodegradable.

Characteristics    excellent dispersing, emulsifying, wetting abilities. Certain resistance to inorganic electrolytes.

Synthesis

Naphthalenesulfonic acid and formaldehyde react through the polycondensation reaction, then sodium hydroxide or sodium carbonate neutralizes, finally obtain product.

Quality Standards & Test Methods

1, Physical and chemical indexes

Item

Physical and chemical indexes

Solid

Actives, %, ≥

85.0

pH (25°C, 1%)

7.0 - 9.5

Test Methods

(1), Actives

 

(2), pH

GB/T 6368 Surface active agents - Determination of pH of aqueous solution - Potentiometric method

ISO 4316 Surface active agents -- Determination of pH of aqueous solutions -- Potentiometric method

2, Hazardous substances indexes

Item

Hazardous substances indexes

Solid

Heavy metals (as Pb), mg/Kg, ≤

20

As, mg/Kg, ≤

3

Test Methods

(1), Heavy metals (as Pb)

Safety and Technical Standards for Cosmetics (2015 Edition)

GB/T 30799 The test method of food detergents - Determination of heavy metals

(2), As

Safety and Technical Standards for Cosmetics (2015 Edition)

GB/T 30797 The test method of food detergents - Determination of total arsenic

3, Product standards

(1), Chinese standards

(1a), HG/T 2562 Dispersing agent N

4, Further explanation

(a), On physical and chemical indexes: firstly, shall be indicated carbon atom distribution; secondly, shall be indicated average molecular weight.

(b), Used in cosmetics, should be test for harmful substances; or furtherly test for microorganisms.

Major Uses

1, Typical applications

Use as dispersing agent.

Use as emulsifying agent, emulsion stabilizer.

2, Textile, printing and dyeing

Use as dispersing agent, leveling agent.

Has a good ability to protect colloid, non-permeating, non-foaming.

Affinity for protein and polyamide fibers; no affinity for cotton fibers.

3, Dye

Dispersing agent, leveling agent in disperse dyes, reactive dyes, vat dyes widely. can be grinded with dyes.

4, Concrete

Water-reducing agent in concrete industry.

5, Agriculture

Dispersing agent in pesticide.

6, Personal care products

Emulsion stabilizer, hydrotrope, gel-forming agent in personal care products.

Manufacturers

 

References

[1]: ChemIDplus. 9084-06-4, Sodium polynaphthalenesulfonate

Update: 20131025(1); 20170409(2);