Reference

Sodium tripolyphosphate containing sodium sulfate

Sodium tripolyphosphate containing sodium sulfate. Garkun, V. K.; Vlasov, P. P.; Sarkits, L. A.; Gavrilyuk, L. M.; Binshtein, A. B.; Gorshkov, A. V.; Ovechkin, V. F.; Gerasimov, P. Ya.; Vovk, T. V.; Lutsenko, V. D. (Leningrad Technological Institute, USSR). U.S.S.R. SU 1054299 A1 15 Nov 1983 From: Otkrytiya, Izobret., Prom. Obraztsy, Tovarnye Znaki 1983, (42), 102. 7757-82-6 and 13573-18-7 are cas registry numbers of chemicals which are used as reagents here. (Russian). (Union of Soviet Socialist Republics). CODEN: URXXAF. CLASS: IC: C01B025-41. APPLICATION: SU 82-3392245 10 Feb 1982. DOCUMENT TYPE: Patent CA Section: 49 (Industrial Inorganic Chemicals) H3PO4 contg. SO42- ions is neutralized with Na2CO3 or NaOH, the ppt. sepd. from impurities by filtration and washed, the filtrate boiled down and dried, and the solids are mixed and calcined. The efficiency of the process is increased by improving the filtration conditions, and the Na tripolyphosphate content in the mixt. is increased by maintaining the wt. ratio of SO42- ions (calcd. as SO3) to H3PO4 (calcd. as P2O5) before neutralization at 0.026-0.088. .

Complex additive for a concrete mix

Complex additive for a concrete mix. Gellershtein, E. M.; Okulova, L. I.; Chernov, A. V.Chemicals with cas numbers 7757-82-6 and 13573-18-7 also play role.; Sushko, A. I. (Rostov Scientific-Research and Design Institute of the Building Industry, USSR). U.S.S.R. SU 1073207 A1 15 Feb 1984 From: Otkrytiya, Izobret., Prom. Obraztsy, Tovarnye Znaki 1984, (6), 72. (Russian). (Union of Soviet Socialist Republics). CODEN: URXXAF. CLASS: IC: C04B013-24. APPLICATION: SU 82-3546351 6 Aug 1982. DOCUMENT TYPE: Patent CA Section: 58 (Cement, Concrete, and Related Building Materials) The mobility of a concrete mix and its water impermeability are increased and the resistance of concrete to steel reinforcement and to aggressive media, causing 1st and 2nd type corrosion, is increased by adding 28-45 wt.% Na tripolyphosphate to a complex additive contg. 46-68 Na sulfate and 4-9 wt.% scrubber paste. .