Potassium bicarbonate, KHCO3 - ( 500 g )
| Availability: | In stock |
 |
| Quantity: | x 1 ks | |
| Price with VAT: | 5,50 € ( 4,58 € without VAT ) | |
Product name
Potassium bicarbonate
Usage
pH regulator, in agriculture as a fungicide against mildew
Information
Potassium bicarbonate (KHCO3) is a potassium hydrogensalt carbonic acid is a colorless, odorless and slightly alkaline, because potassium hydroxide is a strong base and carbonic acid just weak acid. It is soluble in water. At a temperature of 100 ° C to 120 ° C decomposes to potassium carbonate, water and carbon dioxide:
KHCO3 → 2 K2CO3 + H2O + CO2.
At a concentration greater than 0.5% may have toxic effects on plants. [Source?] In humans, however, has not been demonstrated toxicity or carcinogenicity.
In nature, it occurs very rarely as mineral kalicinit.
Specification
M: 100.115 g / molDecomposition temperature:> 100 °C
Density: 2.180 g / cm 3
Refractive index: NDA = 1,380
NDB = 1,482
NDC = 1,573
Dissociation constant pK: 10,329 (6,351 carbonic acid)
Solubility:
22.45 g / 100 ml (0 ° C)
27.9 g / 100 ml (10 ° C)
33.3 g / 100 ml (20 ° C)
39.1 g / 100 ml (30 ° C)
45.6 g / 100 ml (40 ° C)
60.0 g / 100 ml (60 ° C)
68.3 g / 100 ml (70 ° C)
Technical purity
CAS 298-14-6