7722-88-5 Na4O7P2 Tetrasodium pyrophosphate CAS NO.7722-88-5

tetrasodium pyrophosphate basic information

product name:	tetrasodium pyrophosphate
synonyms:	diphosphoric acid tetrasodium salt;diphosphoric acid, tetrasodium salt, decahydrate;decahydrate tetrasodium pyrophosphate;tetra-sodium diphosphate;tetra-sodium diphosphate-10-hydrate;tetra-sodium diphosphate decahydrate;tetrasodium pyrophosphate;sodium diphosphate
cas:	7722-88-5
mf:	na4o7p2
mw:	265.9
einecs:	231-767-1
product categories:	inorganics
mol file:	7722-88-5.mol

tetrasodium pyrophosphate chemical properties

mp	80 °c
bp	93.8 °c
density	2.53 g/ml at 25 °c(lit.)
solubility	h2o: 0.1 m at 20 °c, clear, colorless
sensitive	hygroscopic
merck	14,9240
stability:	stable. incompatible with strong oxidizing agents.
cas database reference	7722-88-5(cas database reference)
epa substance registry system	diphosphoric acid, tetrasodium salt(7722-88-5)

safety information

hazard codes	xi,xn
risk statements	36/37/38-41-22
safety statements	26-36-39
wgk germany	3
rtecs	ux7350000
hazardous substances data	7722-88-5(hazardous substances data)

msds information

tetrasodium pyrophosphate usage and synthesis

chemical properties	white crystalline powder or colourless crystals
general description	odorless, white powder or granules. mp: 995°c. density: 2.53 g cm-3. solubility in water: 3.16 g / 100 ml (cold water); 40.26 g / 100 ml boiling water. used as a wool de-fatting agent, in bleaching operations, as a food additive. the related substance tetrasodium pyrophosphate decahydrate (na4p2o7 0h2o) occurs as colorless transparent crystals. loses its water when heated to 93.8°c.
reactivity profile	tetrasodium pyrophosphate is basic. reacts exothermically with acids. incompatible with strong oxidizing agents. decomposes in ethyl alcohol.

tetrasodium pyrophosphate preparation products and raw materials

preparation products	sodium pyrophosphate decahydrate-->ferric pyrophosphate-->copper pyrophosphate-->ferric pyrophosphate
raw materials	sodium hydroxide-->sodium carbonate-->phosphorous acid-->n-(isoxazol-5-yl)sulphanilamide

hennan sunlake enterprise corporation is located in henan province , the central plain of china , which enjoys favorable geogeaphical position and convenient transportion, the com[any was established in june. 1998 , until now having more than 18 years experience in manufacturing & exporting chemical raw material .

sunlake is a professional manufacturer engaged in producing and selling chemicals,including organic & inorganic chemicals , pigments & dyestuffs , water treatment chemicals , food & feed additives and others . these products have been being well exported to europe , southeast asia , the middle east , africa , south america and some other countries and areas.

we sincerely welcome foreign friends to visit our plant for cooperation. with the idea of "quality first,credit priority, excellent service", we are highly acknowledged by customers for good quality and competitive price. more importantly , the company has a strong r & d team, who are professional engineers and scholars with ph. d. .so we are confident to serve you better with our high - quality products and professional team.

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