CAS 7732-18-5: Water
Description:Water, with the chemical formula H₂O and CAS number 7732-18-5, is a vital and ubiquitous substance on Earth. It is a polar molecule, characterized by its bent shape, which results in a significant dipole moment. This polarity contributes to its excellent solvent properties, allowing it to dissolve a wide range of ionic and polar substances. Water has a high specific heat capacity, which enables it to absorb and retain heat, playing a crucial role in regulating temperatures in natural environments. It exhibits unique properties such as high surface tension and cohesion, which are essential for various biological processes. Water exists in three states: solid (ice), liquid, and gas (water vapor), with its phase transitions occurring at specific temperature and pressure conditions. Additionally, water has a high latent heat of vaporization, which is important for processes like cooling and climate regulation. Its density is highest at 4°C, which leads to ice floating on liquid water, an essential characteristic for aquatic ecosystems. Overall, water is fundamental to life, influencing chemical reactions, biological functions, and environmental systems.
Formula:H2O
InChI:InChI=1S/H2O/h1H2
InChI key:InChIKey=XLYOFNOQVPJJNP-UHFFFAOYSA-N
SMILES:O
- Synonyms:
- (~3~H_2_)water
- Agua Destilada, De Conductividad O De Igual Grado De Pureza
- Aqua
- Aquafina
- Craon 17-502
- DRiWATER
- De-ionized water
- Deionized Ultra-filtered Water
- Deionized Water
- Dihydrogen oxide
- See more synonyms
- Distilled water
- Eau
- Eaux
- Hydrogen oxide
- Hydrogen oxide (H2O)
- Hydrogen oxide (H<sub>2</sub>O)
- Ice
- Milli-Q water
- Nsc 147337
- R 718
- Spa
- Steam
- Sterile Water For Injection
- Ultrex II Ultrapure
- Wasser
- Water (Moisture)
- Water, Distilled
- Water

Tetrapropylammonium hydroxide, 25% in water
Ref: AC-42073
25g | 37.00 € | ||
100g | 86.00 € | ||
500g | 334.00 € |

Sulfuric acid, 1N (0.5M) standard solution
Controlled ProductRef: AC-12424
1l | 53.00 € | ||
2500ml | 96.00 € |

Ammonium hydroxide, for analysis, 25% free ammonia, solution in water
Ref: AC-39003
1l | 38.00 € | ||
2500ml | 71.00 € |

Nitric acid, 70%
Ref: AC-12465
1l | To inquire | ||
2500ml | To inquire |

Sulfuric acid, 0.1N (0.05M) standard solution
Controlled ProductRef: AC-12423
1l | 51.00 € | ||
2500ml | 94.00 € |

Hydrochloric acid, 0.1 N standard solution
Controlled ProductRef: AC-12420
1l | 33.00 € | ||
10l | 148.00 € | ||
25l | 328.00 € | ||
2500ml | 55.00 € |

Phosphoric acid, extra pure, 85% solution in water
Ref: AC-29570
1l | 91.00 € | ||
10l | To inquire | ||
2500ml | 175.00 € |

Erbium(III) perchlorate, 40 wt.% solution in water
Ref: AC-42829
5g | 82.00 € | ||
25g | To inquire |

Raney™-Nickel, Activated Catalyst, 50% slurry in water
Ref: AC-39592
100g | To inquire | ||
500g | To inquire |

Potassium iodate, 99.5%, for analysis
Ref: AC-20177
100g | 60.00 € | ||
500g | To inquire | ||
2500g | To inquire |

Perchloric acid, for analysis, ca. 70% solution in water
Ref: AC-22331
1l | 140.00 € | ||
250ml | 55.00 € |

Hydrochloric acid, for analysis, fuming, 37% solution in water
Controlled ProductRef: AC-12463
1l | 37.00 € | ||
10l | To inquire | ||
500ml | 25.00 € | ||
2500ml | 64.00 € |

DL-1,4-Dithiothreitol, For Biochemistry, 1M solution in water
Ref: AC-42638
10ml | 35.00 € | ||
50ml | To inquire | ||
250ml | To inquire |

Tetraethylammonium hydroxide, 20 wt.% in water
Ref: AC-17607
1l | 242.00 € | ||
5l | To inquire | ||
250ml | 86.00 € |

Buffer solution pH 4, Citrate buffer
Ref: AC-25858
1l | 60.00 € | ||
5l | 126.00 € | ||
500ml | To inquire |

L(+)-Lactic acid, 20 wt.% solution in water
Ref: AC-12507
1l | 62.00 € | ||
2500ml | 116.00 € |

tert-Butyl hydroperoxide, 70% Solution in water
Ref: AC-18034
5g | 24.00 € | ||
10kg | To inquire | ||
250g | 50.00 € | ||
500g | 55.00 € | ||
2500g | 173.00 € |

Cadmium standard solution, for AAS, 1mg/mL Cd in 0.5N HNO3
Ref: AC-19587
100ml | 30.00 € | ||
500ml | 102.00 € |

Potassium hydroxide, 1N solution in water
Ref: AC-27840
1l | 36.00 € | ||
25l | 275.00 € | ||
2500ml | 51.00 € |

Hydrogen peroxide, ACS reagent, 30 wt% solution in water, nonstabilized
Ref: AC-41188
100g | 29.00 € | ||
2500g | 171.00 € |