| Description | |
|---|---|
| Catalogue Number | 100573 |
| Synonyms | o-Phosphoric acid, Orthophosphoric acid |
| Product Information | |
|---|---|
| CAS number | 7664-38-2 |
| Grade | ACS,ISO,Reag. Ph Eur |
| HS Code | 2809 20 11 |
| Physicochemical Information | |
|---|---|
| Boiling point | 158 °C (1013 mbar) |
| Density | 1.71 g/cm3 (20 °C) |
| Melting Point | 21 °C |
| pH value | <0.5 (100 g/l, H₂O, 20 °C) |
| Vapor pressure | 2 hPa (20 °C) |
| Viscosity kinematic | 30.5 mm2/s (20 °C) |
| Safety Information according to GHS | |
|---|---|
| Hazard Pictogram(s) |     |
| Hazard Statement(s) | H290: May be corrosive to metals. H302: Harmful if swallowed. H314: Causes severe skin burns and eye damage. |
| Precautionary Statement(s) | P234: Keep only in original packaging. P280: Wear protective gloves/ protective clothing/ eye protection/ face protection/ hearing protection. P301 + P312: IF SWALLOWED: Call a POISON CENTER/doctor if you feel unwell. P303 + P361 + P353: IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water. P304 + P340 + P310: IF INHALED: Remove person to fresh air and keep comfortable for breathing. Immediately call a POISON CENTER/doctor. P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. |
| Signal Word | Danger |
| Storage class | 8B Non-combustible, corrosive hazardous materials |
| WGK | WGK 1 slightly hazardous to water |
| 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 | |
|---|---|
| Categories of danger | Corrosive |
| Storage and Shipping Information | |
|---|---|
| Storage | No Temp Limit |
| Transport Information | |
|---|---|
| Declaration (railroad and road) ADR, RID | UN 1805 , 8, III |
| Declaration (transport by air) IATA-DGR | UN 1805 , 8, III |
| Declaration (transport by sea) IMDG-Code | UN 1805 , 8, III, Segregation Group: 1 (Acids) |
| Specifications | |
|---|---|
| Assay (alkalimetric) | ≥ 85.0 % |
| Identity | passes test |
| Appearance of solution | passes test |
| Color | ≤ 10 Hazen |
| Chloride (Cl) | ≤ 2 ppm |
| Fluoride (F) | ≤ 1 ppm |
| Nitrate (NO₃) | ≤ 3 ppm |
| Phosphite and Hypophosphite (as H₃PO₃) | ≤ 20 ppm |
| Hypophosphite, phosphite | passes test |
| Heavy metals (as Pb) | ≤ 10 ppm |
| Sulfate (SO₄) | ≤ 20 ppm |
| As (Arsenic) | ≤ 0.5 ppm |
| Ca (Calcium) | ≤ 20 ppm |
| Cd (Cadmium) | ≤ 0.5 ppm |
| Co (Cobalt) | ≤ 0.5 ppm |
| Cu (Copper) | ≤ 0.5 ppm |
| Fe (Iron) | ≤ 10 ppm |
| K (Potassium) | ≤ 5 ppm |
| Mg (Magnesium) | ≤ 5 ppm |
| Mn (Manganese) | ≤ 0.5 ppm |
| Na (Sodium) | ≤ 200 ppm |
| Ni (Nickel) | ≤ 1.0 ppm |
| Pb (Lead) | ≤ 0.5 ppm |
| Sb (Antimony) | ≤ 5 ppm |
| Zn (Zinc) | ≤ 2 ppm |
| Matter precipitated by ammonia | passes test |
| Volatile acids (as Acetic acid) | ≤ 10 ppm |
| Substances reducing potassium permanganate (as O) | ≤ 10 ppm |
| Insoluble matter | ≤ 10 ppm |
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