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.
1. Basic Information
Name: Methylamine hydrochloride
Alias: Methanaminium chloride
CAS No.: 593-51-1
Molecular Formula: C1H6N1Cl1
Molecular Weight: 67.52
2. Physical and Chemical Properties
Physical Properties
- Appearance: White crystalline powder
- Odor: Slight methylamine irritating odor
- Solubility: Highly soluble in water, soluble in methanol and ethanol; slightly soluble in isopropanol; insoluble in ether, acetone, benzene
- Melting Point: 232–234 °C
- Hygroscopicity: Strongly hygroscopic, easy to absorb moisture and deliquesce in humid air
- Aqueous solution: Weakly acidic transparent liquid
Chemical Properties
- Molecular Structure: Ionic salt composed of methylammonium cation and chloride anion
- Alkali reaction: Reacts with sodium hydroxide, potassium hydroxide and other strong alkalis under heating to release volatile methylamine gas with strong pungent smell
- Thermal stability: Stable at room temperature; decomposes above melting point to produce methylamine and hydrogen chloride gas
- Salt compatibility: Stable with neutral inorganic salts; precipitates with silver ions to form silver chloride white precipitate
- Photostability: Stable under indoor light, no discoloration
- Compatibility: Compatible with polar organic solvents and weak acid systems; incompatible with strong alkalis, silver salts, oxidants
3. Main Application Fields
1. Pharmaceutical Synthetic Intermediate (Core Application)
Key raw material for synthesis of antibiotics, anti-inflammatory drugs, hormone intermediates and pesticide active ingredients
2. Organic Synthesis Raw Material
Methylation reagent for dye, resin, surfactant manufacturing; used for preparation of methylamine derivatives
3. Electroplating & Water Treatment Auxiliary
Complexing agent additive for electroplating solution; flocculation auxiliary for industrial wastewater treatment
4. Laboratory Analytical Reagent
Source of methylamine for organic synthesis lab reactions
4. Quality Specification Table
| Test Item | Standard Index |
| CAS Number | 593-51-1 |
| Molecular Formula | C1H6N1Cl1 |
| Appearance | White crystalline powder |
| Assay | Industrial Grade ≥99.0%; Reagent Grade ≥99.5% |
| Water Content (KF) | ≤0.30% |
| Free Methylamine | ≤0.10% |
| Heavy Metals (Pb) | ≤10 ppm |
| Packaging | 25kg PE lined fiber drum |
| Storage Condition | Hermetic cool dry warehouse below 25 °C; strictly isolated from alkaline substances and humid air |
| Transportation Requirement | Irritating hygroscopic solid, fully sealed moisture-proof packaging |
| Shelf Life | 24 months under intact sealed packaging |
Safety Warning
Strong irritant solid. Dust severely stimulates eyes, skin and respiratory tract; contact with strong alkali releases highly irritating methylamine gas. Wear dust mask, acid-resistant gloves and full-face goggles during operation, operate in ventilated environment. Strictly avoid mixing with alkaline materials. Waste liquid needs neutralization treatment before discharge; residues belong to nitrogen-containing organic hazardous waste requiring professional disposal.
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