Spolostan 7L CaS

Identification

Chemical description	Calcium salt of high-molecular condensate of naphthalenesulfonic acid with formaldehyde
EC name	Naphthalenesulfonic acid, polymer with formaldehyde, calcium salt
CAS #	37293-74-6
EC #	609-392-3

Spolostan 7L CaS is a highly efficient superplasticizer for concrete and mortar mixtures.

Using Spolostan 7L CaS in a concrete mixture at given proportions of cement, sand and aggregates provides for achieving enhanced workability (increased flow) of fresh concrete, increased concrete strength in first days and months (by 15 – 50 %) by reducing the amount of mix water while retaining its workability and achieving cement savings up to 20 % while retaining the concrete strength.

Spolostan 7L CaS is used especially for massive and reinforced concrete structures, precast concrete elements and structures as well as concrete for hydraulic structures.

Spolostan 7L CaS is also employed in oil field chemicals for oil well cementing or as a gypsum fluidizer in the production of gypsum boards.

Physical and chemical properties

appearance at 20°C	dark brown viscous liquid
density at 20°C, g/cm³, c.	1.18
dry matter, % wt.	40 ± 2
chlorides (Cl^-), % wt., max.	0.05
SO₄^2-, % wt., max.	0.3
pH, 3% aqueous solution	7.5 - 9.5