SULFONATED MELAMINE FORMALDEHYDE POLYMER

PRODUCT IDENTIFICATION

CAS NO.

64787-97-9

EINECS NO.
FORMULA
MOL WT.
H.S. CODE

TOXICITY

SYNONYMS Melamine Sulfonated admixture polymer;

Melaminesulfonate formaldehyde polycondensate, neutralized with sodium;

DERIVATION

CLASSIFICATION

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE

Light yellow powder

MELTING POINT

BOILING POINT
SPECIFIC GRAVITY

SOLUBILITY IN WATER

pH

VAPOR DENSITY

AUTOIGNITION

NFPA RATINGS

REFRACTIVE INDEX

FLASH POINT

STABILITY Stable under ordinary conditions.

GENERAL DESCRIPTION & APPLICATIONS

Chemical admixtures are water soluble ingredients (other than cement, water, and aggregate) added to concrete in small quantities before or during mixing to obtain some desired performance in the fresh and hardened state. They should improve workability of the fresh mixture and strength or durability of the hardened concrete. Chemical admixtures can be classified into five major categories depending on the effectiveness; superplasticizers, air-entraining, water-reducers, retarders, and accelerators. There are also other admixtures that have functions such as corrosion inhibition, shrinkage reduction, alkali-silica reaction inhibition, workability enhancement, damp proofing, and coloring. Mineral admixtures are hydraulic or pozzolanic supplementary fine powder materials to increase additional strength and durability of hardened concrete.
  • Superplasticizers
    • Sulphonated naphthalene formaldehyde polymer
    • Sulphonated melamine formaldehyde polymer
    • Lignosulfonates, modified
    • Polycarboxylates
  • Mineral admixtures
    • Blast-furnace slag
    • Fly ash
    • Condensed silica fume

Sulfonated melamine formaldehyde polymer is a major ingredient of superplasticizers. It takes role in neutralizing the surface charges on the cement particles and enhancing water tied up in the cement agglomerations and thereafter reducing the viscosity of the paste and concrete. It promote dispersing of cement particles and reduce water requirements without affecting the workability, thus resulting high-strength concrete and lower permeability. Superplasticizers are linear polymers containing sulfonic acid groups or carboxylic groups attached to the polymer backbone at regular intervals.

SALES SPECIFICATION

POWDER

APPEARANCE

yellowish powder

SOLID CONTENT

92.0% min

SULFATE CONC

1.5 - 2.5%

WATER

8.0% max

pH

7.5 - 10.5 (10% solution)

LIQUID

APPEARANCE

yellowish free flowing liquid

SOLID CONTENT

30.0 - 50.0%

SULFATE CONC

1.5 - 2.5%

pH

7.5 - 10.5 (10% solution)

LOW SULFATE GRADE

 

 

TRANSPORTATION
PACKING 25kgs or Big bag
HAZARD CLASS  
UN NO.  
OTHER INFORMATION