BGC > Buscar Producto > Formaldehyde-2-naphthalenesulfonic acid copolymer sodium salt | 36290-04-7

Dipersing strength	≥ 95%
Sodium Sulfate %WT	≤ 5%
Humidity %WT	≤ 7%
Calcium and Magnesium ion content PPM	≤ 2000
Hot resistance	≥ 130
Ph Value	7-9
Ionic Character	Anionic
None-soluble substance %	≤ 0.05
Appearance	off-white powder

Molecular Formula: C11H9NaO4S
Molecular Weight: 260.24153

Molecular Formula: (C10H8O3S)n.(CH2O)n.xNa

Polycarboxylate superplasticizer
Polycarboxylate based water reducer is powder which is made by spray drying process.
Appearance	Grey powder or Brown liquid
Solid content（ %）	95%Min.for Powder 20%,40% for Liquid
Density（ Kg/cm3)	500-600
Moisture (%)	5.0Max
Alkali content (%)	5.0Max
Cl content(%)	0.2Max
PH Value(1%Sol.) powder	8.0-9.5
PH Value(20%) Liquid	6.0-8.0
Advantages
Lower dosage	high water reducing rate from 25-40%, and can save 15-30% of cement.
Low Slump loss	less than 20% during two hours.
Good compatibility	can be mixed with many kinds of cements and admixtures.
Lower shrinkage of concrete	can improve the compression of freshly mixed concrete.
Low chloride and alkali content,no corrosion to steel-bar.
High stability	no precipitation at low temperature.
Package:	In 25kg PP woven bags or 25kg fiber drums for powder, In 220KG Barrel or 1000kg container drums for Liquid,  Packed according to clients requirment

Appearance: light brown powder

Solubility: Easily soluble

composition: Sodium methylene dinaphthalene sulfonate

Ion type: Negative

Sodium sulphate content,%: 18 max

PH (1% water solution): 7-9

Content of calcium and magnesium Ion ,PPM: 4000

Solid content, % min: 92

Sodium Naphthalene Formaldehyde (SNF-Superplasticizer for Concrete)
CAS Code: 36290-04-7
HS Code (CN): 38244010

SNF a high range water reducer, commonly referred to as a super plasticizer, also named Naphthalene Sulphonate Formaldehyde Condensate (short name: SNF, PNS, NSF, etc…)
SNF is made from naphthalene, sulfuric acid, formaldehyde and liquid alkali, through sulfonation, hydrolyzation, condensation and neutralization reaction and then drying to powder. SNF-A5% contains very small chloride. Thus, it meets the requirements of chemical admixture specifications for concrete: ASTM Designation C 494 as a Type F admixture, GB8076-2008 and GB50119-2003.

Usage
SNF produces concrete with extremely workable characteristics referred to as high slump.
SNF also allows concrete to be produced with very low water/cement ratios at low or normal slumps.
SNF is ideal for use in pre stress, precast, bridge deck or any concrete where it is desired to keep the water/cement ratio to a minimum and still achieve the degree of workability necessary to provide easy placement and consolidation.
SNF will also fluidize concrete, making it ideal for tremie concreting or other applications where high slumps are desired.
SNF is compatible with Portland Cement, Normal Portland cement, Portland Slag Cement, Fly-ash Cement, Portland Pozzolanic Cement, etc.

Advantages
SNF produces high slump flowable concrete with no loss in strength.
SNF produces low water/cement ratio concrete and therefore, high strengths.
SNF in prestress/precast work, can be used to substantially reduce or eliminate the high energy requirements of external heat for accelerated curing.
SNF concrete, even at high slump, exhibits no significant segregation in comparison to concrete without a super-plasticizer at the same slump.
SNF aids in rapid discharge of concrete from truck mixers thereby reducing on the job time and improving mixer utilization.