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aqueous ammonia solution

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Preparation of low pH buffers

Thioharnstoff CZ 17kg Erythrit -has a positive effect onThiourea part, CHEM*428345700 Technical information about chemical reagents: Chemical name: Thiourea Synonyms: Thiourea Molecular formula: CH4N2S(H2N C(=S) NH2) Molar mass (M): 76. 11 g mol CAS number: 62 56 6 EC number: 200 543 5 Type: black (pure) External appearance: colorless crystals or white crystalline powder Physical state: solid Color: white Odor: odorless pH value: 5. 0 7. 0 (50 g L inH2O, 20 C) Melting point: 174 176 C Boiling point: no