Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise focused on industry of fine chemicals research and develop, produce and sale. Shandong Huashang Chemical Co., Ltd. is located in Shan Dong Ji Nan China. we have the ability to provide you high quality products. More than 90 % of our products are exported to developed countries and regions such as north America, Europe, Japan, South Korea and the Middle East.
Water
1. Basic Information
Name: Water
Alias: Dihydrogen monoxide, H2O
CAS No.: 7732-18-5
Molecular Formula: H2O
Molecular Weight: 18.02
Category: Inorganic polar solvent, universal reagent, industrial & daily raw material
2. Physical and Chemical Properties
Physical Properties
- Appearance: Colorless transparent liquid; colorless solid (ice) below 0 °C, colorless gas (steam) above 100 °C
- Odor: Odorless, tasteless
- Solubility: Excellent universal solvent; miscible with methanol, ethanol, acetone and most polar solvents; partially dissolves many inorganic salts, sugars, low-molecular organics
- Boiling Point: 100 °C (101.325 kPa); Melting Point: 0 °C
- Hygroscopy: N/A, itself is solvent
- Aqueous Property: Pure neutral liquid, pH=7.0 at 25 °C
Chemical Properties
- Molecular Structure: Covalent molecule composed of two H atoms and one O atom with polar hydroxyl bonds
- Ionization: Slightly self-ionizes into H+ and OH- ions
- Oxidation-reduction: Acts as oxidizing agent with active metals; reducing agent with fluorine and strong oxidants
- Hydrolysis medium: Promotes hydrolysis of esters, amides, salts, halides
- Thermal Stability: Stable at normal temperature; decomposes into hydrogen and oxygen only under electrolysis or ultra-high temperature
- Photostability: Stable under natural light, no photolysis
3. Main Application Fields
1. General Laboratory & Chemical Solvent (Core Application)
Standard reaction solvent, dilution medium, eluent for chromatography, standard solution preparation
2. Food & Beverage Industry
Raw material for drinking water, beverages, food processing, ingredient dilution
3. Pharmaceutical Industry
API synthesis solvent, injection water, cleaning water for pharmaceutical equipment
4. Industrial & Daily Use
Cooling water, boiler water, textile washing, cosmetic raw material, agricultural irrigation
4. Quality Specification Table
| Test Item | Standard Specification |
| CAS Number | 7732-18-5 |
| Molecular Formula | H2O |
| Appearance | Colorless transparent liquid without suspended impurities |
| Conductivity | Purified water ≤2.0 μS/cm (25℃) |
| pH Value | 5.0–7.0 (purified water) |
| Total Dissolved Solids | ≤10 mg/L |
| Heavy Metals (Pb) | ≤0.01 ppm |
| Packaging | Plastic barrel, stainless steel tank, pipeline transportation |
| Storage Condition | Sealed clean container, avoid dust and microbial contamination |
| Transportation Requirement | Non-hazardous liquid, common tank/barrel transport |
| Shelf Life | Purified water 7 days sealed storage; raw water unlimited circulation |
Safety Warning
Non-toxic low-risk liquid. High-temperature steam may cause scalds; long-term contact with extremely cold ice leads to frostbite. Avoid electrical short circuit when water contacts power equipment. Waste water can be discharged after simple sedimentation and neutralization according to environmental standards.
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