| Specifications | |
|---|---|
| Assay (acidimetric, HPO₃) | 40 - 50 % |
| Assay (acidimetric, NaPO₃) | 50 - 60 % |
| Identity | passes test |
| Chloride (Cl) | ≤ 10 ppm |
| Nitrate (NO₃) | ≤ 5 ppm |
| Reducing matter (as H₃PO₃) | ≤ 100 ppm |
| As (Arsenic) | ≤ 1 ppm |
| Cd (Cadmium) | ≤ 10 ppm |
| Co (Cobalt) | ≤ 5 ppm |
| Cu (Copper) | ≤ 10 ppm |
| Fe (Iron) | ≤ 50 ppm |
| Mn (Manganese) | ≤ 5 ppm |
| Ni (Nickel) | ≤ 10 ppm |
| Pb (Lead) | ≤ 10 ppm |
| Zn (Zinc) | ≤ 10 ppm |
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| Description | |
|---|---|
| Catalogue Number | 100546 |
| Synonyms | Metaphosphoric acid, m-Phosphoric acid |
| Product Information | |
|---|---|
| HS Code | 2809 20 00 |
| Physicochemical Information | |
|---|---|
| Boiling point | 600 °C (1013 hPa) |
| Density | 2.0 g/cm3 (20 °C) |
| Melting Point | 200 - 250 °C |
| pH value | 2 (33 g/l, H₂O, 20 °C) |
| Vapor pressure | <0.001 hPa (20 °C) |
| Bulk density | 1000 kg/m3 |
| Safety Information according to GHS | |
|---|---|
| Hazard Pictogram(s) |  |
| Hazard Statement(s) | H314: Causes severe skin burns and eye damage. |
| Precautionary Statement(s) | P280: Wear protective gloves/ protective clothing/ eye protection/ face protection. P301 + P330 + P331: IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P308 + P310: IF exposed or concerned: immediately call a POISON CENTER or doctor/ physician. |
| Storage class | 8B Non-combustible, corrosive hazardous materials |
| WGK | WGK 1 slightly water endangering |
| Disposal | 12 Inorganic acids and anhydrides thereof should first be diluted or hydrolyzed by stirring carefully into ice water and then neutralized (protective gloves, fume cupboard!) with sodium hydroxide solution (Cat. No. 105587). Before filling into container D, check the pH with pH universal indicator strips (Cat. No. 109535). Fuming sulfuric acid should be carefully stirred dropwise into 40 % sulfuric acid (Cat. No. 109286). Ensure that plenty of ice is available for cooling! When sufficiently cool, treat the highly concentrated sulfuric acid as described above. Analogous to this procedure, other anhydrides can be converted into their corresponding acids. Acid gases (e.g. hydrogen halide, chlorine, phosgene, sulfur dioxide) can be introduced into dilute sodium hydroxide solution and after neutralization disposed of in container D. |
| Safety Information | |
|---|---|
| Hazard Symbols |  Corrosive |
| Categories of danger | corrosive |
| R Phrase | R 34 Causes burns. |
| S Phrase | S 26-36/37/39-45 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Wear suitable protective clothing, gloves and eye/face protection.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible). |
| Storage and Shipping Information | |
|---|---|
| Storage | Store below +30°C. |
| Transport Information | |
|---|---|
| Declaration (railroad and road) ADR, RID | UN 3453 , 8, III |
| Declaration (transport by air) IATA-DGR | UN 3453 , 8, III |
| Declaration (transport by sea) IMDG-Code | UN 3453 , 8, III, Segregation Group: 1 (Acids) |
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