Chemical Properties:
Package: 25kg/bag, 25kg/Cardboard Drum, 20MT/1FCL, or according to customer's requirement. Storage Condition: Air sensitive. Hygroscopic. Store in sealed containers at cool, dry and ventilated warehouse. Protect from air and moisture. Incompatible with strong bases, oxidizing agents and metals. Safety Profile: Moderately toxic by ingestion. When heated to decomposition at 200℃ it emits toxic fumes of POx and phosphme whch may ignite. See also PHOSPHINE.Shanghai Ruifu Chemical Co., Ltd. is the leading manufacturer and supplier of Phosphorous Acid (CAS: 13598-36-2) with high quality. Phosphorous Acid is colorless crystals. Easily soluble in water and alcohol, and has strong hygroscopicity and deliquescent. We can provide COA, worldwide delivery, small and bulk quantities available. If you are interested in Phosphorous Acid, Please contact: alvin@ruifuchem.com| Item | Specifications |
| Appearance | Colorless Crystals |
| Main Content (H3PO3 Total) | >99.0% (Titration by NaOH) |
| Chloride Content (Cl) | ≤0.001% |
| Iron Content (Fe) | ≤0.005% |
| Sulphate (SO4) | ≤0.001% |
| Phosphate (PO4) | ≤0.30% |
| Heavy Metals (as Pb) | ≤0.0002% |
| Smell | Without Smell |
| Dissolved in Water Test | Colorless and Transparent Without Visible Impurities (70% Aqueous Solution) |
| Infrared Spectrum | Conforms to Structure |
| ICP | Confirms Phosphorus Component Confirmed |
| X-Ray Diffraction | Conforms to Structure |
| Test Standard | Enterprise Standard |
Description:
Specifications:
Package & Storage:
| Chemical Name | Phosphorous Acid |
| Synonyms | Phosphonic Acid; Orthophosphorous Acid; PA; PPA; Dihydroxyphosphine Oxide |
| Stock Status | In Stock, Production Capacity 15000 Tons per Year |
| CAS Number | 13598-36-2 |
| Molecular Formula | H3O3P |
| Molecular Weight | 82.00 g/mol |
| Melting Point | 73.0℃ |
| Boiling Point | 200.0℃ |
| Density | 1.651 g/ml at 25℃(lit.) |
| Sensitive | Hygroscopic. Air Sensitive |
| Solubility | Very Soluble in Water and Alcohol |
| Stability | Stable. Incompatible With Strong Bases. Hygroscopic |
| Shipping Condition | Ambient Temperatures |
| Hazard Codes | C |
| Risk Statements | 22-35 |
| Safety Statements | 26-36/37/39-45 |
| WGK Germany | 1 |
| TSCA | Yes |
| Hazard Class | 8 |
| Packing Group | III |
| HS Code | 28092019 |
| COA & MSDS | Available |
| Brand | Ruifu Chemical |
Advantages:
How to Purchase? Please contact Dr. Alvin Huang: sales@ruifuchem.com or alvin@ruifuchem.com 15 Years Experience? We have more than 15 years of experience in the manufacture and export of a wide range of high quality pharmaceutical intermediates or fine chemicals. Main Markets? Sell to domestic market, North America, Europe, India, Korea, Japanese, Australia, etc. Advantages? Superior quality, affordable price, professional services and technical support, fast delivery. Quality Assurance? Strict quality control system. Professional equipment for analysis include NMR, LC-MS, GC, HPLC, ICP-MS, UV, IR, OR, K.F, ROI, LOD, MP, Clarity, Solubility, Microbial limit test, etc. Samples? Most products provide free samples for quality evaluation, shipping cost should be paid by customers. Factory Audit? Factory audit welcome. Please make an appointment in advance. MOQ? No MOQ. Small order is acceptable. Delivery Time? If within stock, three days delivery guaranteed. Transportation? By Express (FedEx, DHL), by Air, by Sea. Documents? After sales service: COA, MOA, ROS, MSDS, etc. can be provided. Custom Synthesis? Can provide custom synthesis services to best fit your research needs. Payment Terms? Proforma invoice will be sent first after confirmation of order, enclosed our bank information. Payment by T/T (Telex Transfer), PayPal, Western Union, etc.FAQ:
Stable Supply: Maintain reasonable stock
Professional Service: One stop purchasing service
Technical Support: Technology solution available
Custom Synthesis Service: Ranged from grams to kilos
Fast Delivery: If within stock, three days delivery guaranteed
High Quality: Established a complete quality assurance system
Application:
Phosphorous Acid (CAS: 13598-36-2) is mainly used as reducing agent, nylon brightening agent, is used for plastic stabilizers and production of synthetic fiber and phosphite raw materials and pesticides glyphosate, ethylene intermediates, can also be used to produce highly efficient water treatment agent, ATMP and Asia potassium dihydrogen phosphate. Phosphorous 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. Also used to produce herbicides, bactericides and water quality stabilizers in the organo phosphorus pesticide industry. Phosphorous Acid is an intermediate in the preparation of other phosphorous compounds. It is a raw material to prepare phosphonates for water treatment such as iron and manganese control, scale inhibition and removal, corrosion control and chlorine stabilization. The alkali metal salts (phosphites) of phosphorous acid are being widely marketed either as an agricultural fungicide (e.g. Downy Mildew) or as a superior source of plant phosphorous nutrition. Phosphorous Acid is used in stabilizing mixtures for plastic materials. Phosphorous Acid is used for inhibiting high-temperature of corrosion-prone metal surfaces and to produce lubricants and lubricant additives. Phosphorous Acid is used to produce the fertilizer phosphate salt like potassium phosphite, ammonium phosphite and calcium phosphite. It is actively involved in the preparation of phosphites like aminotris(methylenephosphonic acid) (ATMP), 1-hydroxyethane 1,1-diphosphonic acid (HEDP) and 2-phosphonobutane-1,2,4-tricarboxylic Acid (PBTC), which find application in water treatment as a scale or corrosive inhibitor. It is also used in chemical reactions as a reducing agent. Its salt, lead phosphite is used as PVC stabilizer. It is also used as a precursor in the preparation of phosphine and as an intermediate in the preparation of other phosphorus compounds.Sufficient Capacity: Sufficient facilities and technicians
OEM Package: Custom package and label available