Sodium Naphthalene Sulfonate

Sodium naphthalene formaldehyde is high range water-reducing and an anion surface active agent based on polyalkyaryl- sulphonate.
Technical spefication:
Solid content 92% min
Moisture 8.0 % max
Fineness 5.0% max
Ph value 7 - 9
Chlorides content 2.0% max
Surface tension 68-72 mn/m
Cement flowing rate 230mm min
Concrete reducing water rate 18% min
Sodium sulfate content 18% max (5%max is also available)
Sodium naphthalene formaldehyde produces concrete with extremely workable characteristics referred to as high slump. Pns also allows concrete to be produced with very low water/cement ratios at low or normal slumps.Sodium naphthalene formaldehyde is ideal for use in prestress, 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.
Addition ratessodium naphthalene formaldehyde can be added directly or added in after melt. It can be added during mixing and after-mixing. The afterward approach can achieve better result. The suggested addition rate is 0.75%.Sodium naphthalene formaldehyde directionprepare solutions as required.Direct use of powdery agent is allowed. Alternatively the addition of the agent is followed by water moisturization (water-cement ratio: 60%).The agent can be combined with other externally applied agents if pilot development or laboratory experiment succeeds.

Packed in plastic film bag wrapped with plastic woven sack with a net weight of 25kg each.

The raw material naphthalene superplasticizer (snf/fdn/pns) has strong dispersion effect on cement particles and good use effect of preparing super flowing concrete as well as cast-in-situ concrete and precast members with early strength and high strength requirements, can comprehensively improve various properties of the concrete, and is widely applied to highways, bridges, dams, harbors, tunnels, electric power, water conservancy as well as industrial and civil architecture, steam-cured and naturally-cured precast members and so on.

Product Name:Naphthalene based superplasticizer/Sodium Naphthalene sulfonate/sodium naphthalene sulfonate formaldehyde condensation/sulfonated naphthalene formaldehyde/sodium naphthalene sulfuric acid formaldehyde
CAS No.: 9084-06-4
HS No.:382440100
Chemical Formula:(C11H7O4SNa)n
Payment:T/T
Delivery:Within 15 days after payment.
Raw materials:crude naphthalene,concentrated sulfuric acid,formaldehyde,liquid alkali
Specification:
Appearance yellow powderyellow powder yellow powder
Solid content 92% min 92% min 92% min
Sodium sulfate content 5% max 10% max 18% max
Chloride content 0. 3% max0.4% max 0.5% max
PH 7~97~9 7~9
Fluidity of cement paste 250 mm min 240 mm min 230 mm min
Package and Storage:
Package:25 kg plastic bags with PP liner,Alternative package may be available upon request.
Storage:Shelf-life time is 2 years if kept in cool,dried place.Test should be done after expiration.

Sodium Naphthalene Formaldehyde (SNF-Superplasticizer for Concrete)
CAS Code: 36290-04-7
SNF a high range water reducer, commonly referred to as a super plasticizer, also named Naphthalene Sulphonate Formaldehyde Condensate (short name: SNF, PNS, NSF, etcâ?¦)
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.

It is the condensation compound of formaldehyde and naphthalene sulfonic acid; is a good non-air bleed high efficiency water reducing agent. It can be used in the prestressed unit and concrete engineering of highway, port and high-rise. We also could supply the other type water reducer such as poly-carboxylate superplasticizer, sulfonated melamine-formaldehyde resin superplasticizer.


25kg bag

Sodium lignosulfonate is used as a defoamer in papermaking in the food industry and as an adhesive in articles that come in contact with food. It has antiseptic properties and is used as an ingredient in animal feed. It is also used in construction, ceramics, mineral powder, chemical industry, textile industry, metallurgical industry, petroleum industry, flame retardant materials, rubber vulcanization, organic polymerization. It is a pepsin inhibitor.

sodium lignosulfonate uses in construction
The applications of lignin and its modified products are mainly in the following aspects:
(1) Cement and concrete water reducer: Lignosulfonate is currently the most widely used water reducer. In 1935, successfully developed a water-reducing agent with lignosulfonate as the main component. Since then, mankind has begun the research on lignosulfonate water-reducing agent. The use of lignosulfonate as a water reducing agent for cement and concrete can not only greatly improve its fluidity and plasticity, but also greatly reduce harmful pores and significantly enhance compressive strength.
(2) Dispersant, flocculant and corrosion and scale inhibitor: Lignosulfonate is an anionic surfactant with excellent performance, which can be used as dispersant, flocculant, etc.
(3) Oilfield chemicals: Lignosulfonates have a special molecular structure and are widely used in oilfield chemicals. They are often used as tertiary oil recovery surfactants, drilling fluid treatment agents, and water shutoff agents.
(4) Synthetic resin: Since the 1990s, lignin has often been used as a basic renewable material for synthetic polymer materials, resins and adhesives.
(5) Polymer materials: Lignin and its derivatives can be blended with polyvinyl chloride (PVC), polyethylene (PE), polyvinyl alcohol (PVA) and other olefin polymer materials to improve the stability, strength and Anti-photolysis and other properties. Liu Chunfang and others added lignosulfonate to rubber as a rubber reinforcing agent, which can improve the mechanical properties of rubber. Li Haijiang and others compounded hydrolyzed lignin with natural rubber to form an interpenetrating network structure, and then prepared a lignin-natural rubber compound by co-precipitation.
(6) Agricultural additives: Sodium lignosulfonate can be used not only as a pesticide dispersant, but also as a wetting agent, complexing agent and fertilizer enhancer, and is widely used in all aspects of agriculture.