MERCK 104877.1000 Potassium Dihydrogen Phosphate P.A. EMSU
| Description |
|---|
| Catalogue Number | 104877 |
| Synonyms | mono-Potassium orthophosphate, Potassium biphosphate, Potassium phosphate monobasic |
| Product Information |
|---|
| CAS number | 7778-77-0 |
| EC number | 231-913-4 |
| Grade | ACS,ISO,Reag. Ph Eur |
| Hill Formula | H₂KO₄P |
| Chemical formula | KH₂PO₄ |
| Molar Mass | 136.09 g/mol |
| HS Code | 2835 24 00 |
| Quality Level | MQ300 |
| Physicochemical Information |
|---|
| Density | 2.33 g/cm3 (21.5 °C) |
| Melting Point | 252.6 °C (decomposition) |
| pH value | 4.2 - 4.6 (20 g/l, H₂O, 20 °C) |
| Vapor pressure | 4640 mg/kg |
| Safety Information according to GHS |
|---|
| RTECS | TC6615500 |
| Storage class | 10 - 13 Other liquids and solids |
| WGK | WGK 1 slightly hazardous to water |
| Disposal | 14Inorganic salts: Container I. Neutral solutions of the these salts: Container D. Before placing in Container D, check the pH with pH-Universal indicator strips (Item No. 109535). |
| Storage and Shipping Information |
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| Storage | Store at +2°C to +30°C. |
| Transport Information |
|---|
| Declaration (railroad and road) ADR, RID | Kein Gefahrgut |
| Declaration (transport by air) IATA-DGR | No Dangerous Good |
| Declaration (transport by sea) IMDG-Code | No Dangerous Good |
| Specifications |
|---|
| Assay (alkalimetric) | ≥ 99.0 % |
| Assay (alkalimetric, calculated on dried substance) | 98.0 - 100.5 % |
| Assay (alkalimetric; dried substance) | ≥ 99.5 % |
| Identity | passes test |
| Appearance of solution | passes test |
| Insoluble matter | ≤ 0.01 % |
| pH-value (5 %; water, 25 °C) | 4.2 - 4.5 |
| Chloride (Cl) | ≤ 0.0005 % |
| Sulfate (SO₄) | ≤ 0.003 % |
| Total nitrogen (N) | ≤ 0.001 % |
| Heavy metals (as Pb) | ≤ 0.0010 % |
| Heavy metals (ACS) | ≤ 0.001 % |
| As (Arsenic) | ≤ 0.0002 % |
| Fe (Iron) | ≤ 0.0010 % |
| Na (Sodium) | ≤ 0.005 % |
| Reducing substances | passes test |
| Loss on drying (130 °C) | ≤ 0.2 % |
| Corresponds to ACS,ISO,Reag. Ph Eur |
| Global Trade Item Number |
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| Catalogue Number | GTIN |
|---|
| 1048771000 | 04022536056265 |
| 1048779025 | 04022536734507 |
