| Specifications | |
|---|---|
| Concentration after dilution to 1 liter: c(NaOH) = 1 mol/l | |
| Amount-of-substance concentration | 1.000 mol/l |
| The concentration of this solution was determined with hydrochloric acid standard solution (article number 1.09057) standardized against volumetric standard Tris(hydroxymethyl)aminomethane (article number 1.02408). The determined titer at 20°C was 1.000 with an expanded measurement uncertainty of ± 0.004 (k=2 coverage factor for 95% coverage probability). The certified value is traceable to primary standard NIST SRM 723e (NIST: National Institute of Standards and Technology, USA) by means of volumetric standard Tris(hydroxmethyl)aminomethane, measured in the accredited calibration laboratory of Merck KGaA, Darmstadt, Germany in accordance to DIN EN ISO/IEC 17025. | |
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| Description | |
|---|---|
| Catalogue Number | 109956 |
| Product Information | |
|---|---|
| HS Code | 2815 12 00 |
| Physicochemical Information | |
|---|---|
| Density | 1.030 g/cm3 (20 °C) |
| pH value | 14 (H₂O, 20 °C) |
| Safety Information according to GHS | |
|---|---|
| Hazard Pictogram(s) |  |
| Hazard Statement(s) | H290: May be corrosive to metals. 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 | 13 Bases and alcoholates should be diluted if necessary by carefully stirring them into water and then neutralized (protective gloves, fume cupboard!) with hydrochloric acid (Cat. No. 100312). Before placing in container D, check the pH with pH universal indicator strips (Cat. No. 109535). |
| Safety Information | |
|---|---|
| Hazard Symbols |  Corrosive |
| Categories of danger | corrosive |
| R Phrase | R 35 Causes severe 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 | Storage temperature: no restrictions. |
| Transport Information | |
|---|---|
| Declaration (railroad and road) ADR, RID | UN 1824 , 8, II |
| Declaration (transport by air) IATA-DGR | UN 1824 , 8, II |
| Declaration (transport by sea) IMDG-Code | UN 1824 , 8, II, Segregation Group: 18 (Alkalis) |
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