4-sulphophthalic anhydride
![4-sulphophthalic anhydride Structure](CAS/GIF/134-08-7.gif)
- CAS No.
- 134-08-7
- Chemical Name:
- 4-sulphophthalic anhydride
- Synonyms
- Nsc 26435;Einecs 205-128-2;4-Sulfophthalic anhydride;4-sulphophthalic anhydride;Phthalic anhydride, 4-sulfo- (8ci);1,3-dioxo-2-benzofuran-5-sulfonicaci;1,3-Dihydro-1,3-dioxo-5-isobenzofuransulfonic acid;5-Isobenzofuransulfonic acid, 1,3-dihydro-1,3-dioxo-
- CBNumber:
- CB5897856
- Molecular Formula:
- C8H4O6S
- Molecular Weight:
- 228.18
- MOL File:
- 134-08-7.mol
Density | 1.820±0.06 g/cm3(Predicted) |
---|---|
pka | -1.60±0.20(Predicted) |
EPA Substance Registry System | 5-Isobenzofuransulfonic acid, 1,3-dihydro-1,3-dioxo- (134-08-7) |
4-sulphophthalic anhydride Chemical Properties,Uses,Production
Chemical Properties
Reddish-brown syrup. Crystallizes partially on long standing; hygroscopic; fluorescent in solution under UV radiation. Very soluble in water, alcohol; insoluble in ether, benzene. Combustible.
Uses
4-sulphophthalic anhydride can be used in wetting, cleansing, emulsifying, softening, and equalizing agents with textiles. Derivatives have application as surface-active agents.
4-sulphophthalic anhydride Preparation Products And Raw materials
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1,3-Dihydro-1,3-dioxo-5-isobenzofuransulfonic acid
4-Sulfophthalic anhydride
5-Isobenzofuransulfonic acid, 1,3-dihydro-1,3-dioxo-
Einecs 205-128-2
Nsc 26435
Phthalic anhydride, 4-sulfo- (8ci)
4-sulphophthalic anhydride
1,3-dioxo-2-benzofuran-5-sulfonicaci
134-08-7