Hydroxylamine;hydrochloride

Hydroxylamine hydrochloride is a white crystalline inorganic salt with the molecular formula ClH4NO and CAS number 5470-11-1. It has a molecular weight of 69.49 g/mol and serves as the hydrochloride salt of hydroxylamine. This compound is classified as a corrosive substance with carcinogenic properties and presents multiple health hazards including acute toxicity and organ toxicity upon repeated exposure.

Hydroxylamine hydrochloride is a white crystalline solid that is highly soluble in water and polar solvents. The compound is hygroscopic, meaning it readily absorbs moisture from air. It has a molecular weight of 69.49 g/mol and decomposes upon heating rather than melting at a distinct temperature. The substance is odorless or has a very faint odor and forms acidic solutions when dissolved in water.

Hydroxylamine hydrochloride is primarily used as a reducing agent and analytical reagent in chemical laboratories and industrial processes. It serves as an intermediate in pharmaceutical synthesis, particularly in the production of oximes and hydroxamic acids. The compound is also utilized in photography as a developer component, in textile industry for certain dyeing processes, and as a raw material for manufacturing other hydroxylamine derivatives.

Hydroxylamine hydrochloride requires careful handling due to its corrosive and potentially carcinogenic properties. Essential personal protective equipment includes chemical-resistant gloves, safety goggles, and protective clothing. Work should be conducted in well-ventilated areas or under fume hoods to prevent inhalation. Avoid skin and eye contact, and never eat, drink, or smoke when handling the substance. Emergency eyewash stations and safety showers should be readily accessible.

Hydroxylamine hydrochloride should be stored in a cool, dry, well-ventilated area away from direct sunlight and heat sources. Keep containers tightly closed to prevent moisture absorption due to its hygroscopic nature. Store separately from strong oxidizing agents, acids, and incompatible materials. The storage area should be equipped with appropriate spill containment measures and restricted to authorized personnel only due to the substance's hazardous classification.

Hydroxylamine hydrochloride contact requires immediate action due to its corrosive properties. For skin contact, immediately remove contaminated clothing and rinse affected area with plenty of water for at least 15 minutes. In case of eye contact, flush eyes thoroughly with water for at least 15 minutes while holding eyelids open. If inhaled, move victim to fresh air immediately. Seek immediate medical attention for all exposure routes and bring the safety data sheet.

Hydroxylamine hydrochloride disposal must comply with local and national hazardous waste regulations due to its classification as corrosive and potentially carcinogenic material. The substance cannot be disposed of as regular waste and requires treatment by licensed hazardous waste disposal companies. Small quantities may be neutralized following specific protocols, but this should only be done by trained personnel. Always consult local environmental authorities for specific disposal requirements.

Hydroxylamine hydrochloride is classified under ADR Class 8 (corrosive substances), Packing Group III for transportation purposes. It must be packaged in approved containers meeting UN packaging requirements and labeled with appropriate hazard labels including the corrosive pictogram. Transport documentation must include proper shipping names and hazard classifications. Only authorized carriers trained in handling corrosive materials should transport this substance, following all applicable dangerous goods regulations.

Hydroxylamine hydrochloride is subject to comprehensive European chemical regulations including REACH registration requirements and CLP classification as a corrosive, carcinogenic substance. While not currently listed as a Substance of Very High Concern (SVHC), its Carc. 2 classification requires specific labeling and safety measures. Users must comply with occupational exposure limits, proper risk assessments, and safety data sheet provisions under applicable workplace safety regulations.

Hydroxylamine hydrochloride is available through OYSI, a specialized European distributor of technical chemicals serving industrial and professional customers across Europe. As an established chemical distributor, OYSI provides quality hydroxylamine hydrochloride with proper documentation, safety data sheets, and regulatory compliance support. Contact OYSI directly for availability, technical specifications, packaging options, and delivery arrangements to your specific European location.