Hydroxylamine Sulfate
A cornerstone reagent for oxime synthesis, hydroxamic acid chemistry and caprolactam production — supplied in Pharma, Technical and Reagent grades with full DG-compliant logistics from India.
CAS Number
10039-54-0
Molecular Weight
164.14 g/mol
Purity (Assay)
≥ 99.0 %
Transport Class
UN 2865 · Class 8
The Essential Oxime & Hydroxamic Acid Reagent
Hydroxylamine Sulfate (CAS 10039-54-0) is the stable, water-soluble salt of hydroxylamine — a versatile nitrogen–oxygen nucleophile indispensable across pharmaceutical, agrochemical and polymer industries. Its primary role lies in oxime synthesis: reacting with aldehydes and ketones to yield oximes, which serve as key intermediates in API manufacturing and crop-protection chemistry.
Beyond oxime chemistry, Hydroxylamine Sulfate is the starting material for hydroxamic acid preparation— a class of chelating ligands central to siderophore research, metalloenzyme inhibitor design and HDAC-inhibitor drug discovery. In the polymer sector it is an intermediate in the Beckmann rearrangement, producing caprolactam — the monomer for nylon-6.
Chelora PharmaChem supplies Hydroxylamine Sulfate in three tightly specified grades — Pharma / Synthesis (≥ 99.0 %), Technical (≥ 98.5 %) and Analytical / Reagent (≥ 99.5 %) — backed by lot-specific Certificates of Analysis and full dangerous-goods documentation for seamless international logistics.
Chemical & Physical Data
- IUPAC Name
- Bis(hydroxylammonium) sulfate
- Synonyms
- Hydroxylamine sulphate, Hydroxylammonium sulfate, Oxammonium sulfate
- CAS Number
- 10039-54-0
- Molecular Formula
- (NH₂OH)₂·H₂SO₄
- Molecular Weight
- 164.14 g/mol
- Appearance
- White crystalline powder
- Melting Point
- 170 °C (decomposition)
- Solubility (water, 20 °C)
- ≈ 590 g/L (freely soluble)
- Solubility (ethanol)
- Slightly soluble
- Purity (assay)
- ≥ 99.0 %
- pH (5 % aq.)
- 3.0 – 4.5
- Free acid (as H₂SO₄)
- ≤ 0.3 %
- Iron (Fe)
- ≤ 5 ppm
- Heavy metals (as Pb)
- ≤ 10 ppm
- Chloride (Cl)
- ≤ 50 ppm
- Residue on ignition
- ≤ 0.1 %
- Loss on drying
- ≤ 0.5 %
- Storage
- Cool, dry place; protect from heat & moisture; keep away from oxidizers & bases
- Transport
- UN 2865, Class 8 (Corrosive), Packing Group III
Versatile Across Pharma, Polymer & Specialty Chemistry
From fine-chemical synthesis to industrial polymer production, Hydroxylamine Sulfate delivers reliable reactivity and selectivity across a broad range of processes.
Oxime Synthesis
The primary reagent for converting carbonyl compounds — aldehydes and ketones — into oximes, which serve as essential intermediates in pharmaceutical API and agrochemical synthesis pathways.
Hydroxamic Acid Preparation
Used to synthesise hydroxamic acids — powerful metal-chelating ligands deployed in siderophore research, metalloenzyme inhibitor design, and HDAC-inhibitor drug-discovery programmes.
Caprolactam Production
An intermediate in the Beckmann rearrangement of cyclohexanone oxime to caprolactam — the monomer feedstock for nylon-6 polymer manufacturing.
Photographic Developers
Functions as a mild reducing agent in photographic processing solutions, contributing to controlled image development in black-and-white and colour workflows.
Antioxidant for Oils & Fats
Acts as an antioxidant stabiliser in fatty acid and vegetable oil formulations, inhibiting oxidative degradation and extending product shelf life in food and oleochemical industries.
Rubber Vulcanization Accelerator
Employed as a component in rubber chemical intermediates that accelerate vulcanization, improving cross-link density and the mechanical performance of cured rubber products.
Three Grades, Precision-Matched to Your Process
Whether you need pharmaceutical-grade purity for API synthesis, a cost-effective technical grade for polymer production, or an ultra-pure reagent for analytical titrations — Chelora has a specification for every workflow.
Pharma / Synthesis Grade
≥ 99.0 %
Oxime and API synthesis, hydroxamic acid chemistry, pharmaceutical intermediates
Request COATechnical Grade
≥ 98.5 %
Caprolactam production, rubber vulcanization accelerators, photographic chemicals, antioxidant applications
Request COAAnalytical / Reagent Grade
≥ 99.5 %
Laboratory research, titration standards, quality-control reference reagents
Request COADG-Compliant Packaging for Safe Transit
Every Hydroxylamine Sulfate shipment is packed to meet UN 2865 Class 8 transport requirements, ensuring safe handling from our warehouse to your facility.
25 kg HDPE-lined fibre drums
Standard unit for pharma and lab-scale orders; double-lined for moisture protection.
50 kg HDPE-lined MS drums
Heavy-duty mild-steel drums for industrial and bulk procurement with pallet-ready stacking.
Sample quantities in sealed HDPE containers
Evaluation samples in airtight HDPE jars for pre-qualification testing and analytical validation.
Full Regulatory & Quality Paper Trail
Every lot ships with a comprehensive documentation package — including the dangerous-goods declarations required for Class 8 corrosive cargo — so your compliance and QC teams have everything they need on receipt.
Certificate of Analysis (COA)
Lot-specific assay, impurity profile, pH, loss on drying and heavy metals data for every shipment.
Safety Data Sheet (SDS)
GHS-compliant SDS covering handling, storage, first aid, fire-fighting and transport precautions.
Specification Sheet
Detailed product specification listing all test parameters, limits and analytical methods.
DG Documentation (UN 2865)
Dangerous-goods declaration, shipper's certification and emergency response information for Class 8 PG III cargo.
India’s Trusted Partner for Hydroxylamine Sulfate
Chelora PharmaChem — a division of Chelora Industries Pvt. Ltd. — combines decades of fine-chemical manufacturing expertise with rigorous quality systems and a global logistics network built for hazardous-goods compliance.
Stringent Quality Assurance
Lot-specific COA with full impurity profiling. In-house analytical lab with HPLC, GC, AAS and ICP instrumentation ensuring every batch meets specification.
DG-Compliant Global Logistics
Purpose-built Class 8 hazmat supply chain — IMDG, IATA-DGR and ADR compliant packaging, documentation and carrier partnerships across 40+ countries.
Multi-Grade Flexibility
Three production specifications — Pharma, Technical and Reagent — manufactured on dedicated lines to eliminate cross-contamination risk.
Reliable Supply & Support
Strategic raw-material sourcing, 30-day safety stock and a responsive technical team that supports you from sample evaluation through commercial-scale delivery.
Common Questions About Hydroxylamine Sulfate
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