| CAS No. |
13598-36-2 |
| Other Names |
HS CODE |
| EINECS No. |
237-066-7 |
| Place of Origin |
Shandong China (Mainland) |
| Grade Standard |
Industrial Grade |
| Purity |
98.5% |
| Appearance |
white crystal |
| Application |
industry |
PRODUCT: Phosphorous AcidIdentificationSynonyms:Orthophosphorous acid; phosphonic acidDe: PhosphonsäureES: Ácido fosfónicoFr:Acide phosphoniqueCAS No.: 13598-36-2EC No.: 233-663-1Molecular Weight:81.996Molecular Formula: H3PO3Structural Formula:Density: 1.6510M.P.: 73.6°CB.P.: 200°C (decomposing at 180°C)ApplicationPhosphorous acid is used in synthesis of phosphite salts, plastic stabilizers, pesticides, water-treatment chemicals, phosphite fertilizers for fruits like citrus and orange, vegetables, economic crops etc., cosmetics additives.Specification*ParametersSpecificationGrade IGrade IIGrade III70% SolutionPhosphorous acid Purity99.0% min.98.5%98.5% min.70% min.Chloride (Cl-)5ppm max.20ppm max.0.01% max.5ppm max.Iron (Fe)5ppm max.30ppm max.50 ppm max.5ppm max.Sulfate (SO42-)5ppm max.20ppm max.60 ppm max.5ppm max.Phosphate (PO43-)0.1% max.0.2% max.0.3% max.0.1% max.Test of 70% water solutioncolorlesscolorless--OdorodorlessodorlesscharacteristicodorlessAppearancewhite crystalswhite crystalswhite crystalsclear colorless liquid