Nitrosylsulfuric Acid: direct from source to Europe
Nitrosylsulfuric Acid (CAS 7782-78-7) is a corrosive, fuming liquid or low-melting solid, typically supplied as a solution in sulfuric acid, used as a diazotisation and nitrosation reagent in dye, pigment and pharmaceutical synthesis.
- COA, SDS & TDS with every batch
- REACH status confirmed before quote
- Samples available for qualification
Nitrosylsulfuric Acid: names, synonyms and identifiers
Buyers search for this material under several names. Whichever one appears on your specification, purchase order or REACH dossier, it is the same compound: Nitrosylsulfuric Acid, CAS 7782-78-7.
- Confirmed CAS number on every COA
- Premium grade with assay 98%+ available
- TDS and SDS supplied with every shipment
⚠ Often supplied as a solution in sulfuric acid rather than the neat compound; always confirm the strength you need together with CAS 7782-78-7.
Nitrosylsulfuric Acid physical and chemical properties
Key parameters for process engineering, safety planning and storage design. Values are typical; always verify against the current TDS for your lot.
Nitrosylsulfuric Acid grade specifications: standard vs premium
Two grades are offered so your process chemist or quality team can pick what suits downstream requirements. COA parameters are confirmed before every shipment.
All values are specification limits, not guaranteed minima. Actual COA figures for your lot are provided before dispatch. Non-standard specifications are available on enquiry.
Where Nitrosylsulfuric Acid is used
Typical end uses and synthesis routes for European manufacturers, toll processors and laboratories.
Diazotisation reagent
Generates diazonium salts directly from aromatic amines without separate nitrite addition.
Nitrosation chemistry
Reagent for N-nitroso and C-nitroso compound synthesis.
Dye and pigment synthesis
Used in azo dye and pigment manufacture where in-situ nitrosyl sulfuric acid generation is preferred.
Custom synthesis
Reagent for contract synthesis at industrial scale, for verified users only.
Packed to your site, documented for customs
Nitrosylsulfuric Acid is handled as a dangerous good. Every shipment leaves with UN-approved packaging, CLP labelling and the full document set for European import.
Lined steel drums
UN-approved acid-resistant lined steel drums with vented, sealed closures.
Up to 250 kg netIBC / ISO tank
UN-approved acid-rated IBCs or ISO tank containers for higher-volume users.
On requestBulk supply
Bulk supply packed to agreement for suitable receiving sites.
On requestExplore related intermediates
Buyers of Nitrosylsulfuric Acid often source these materials as well. One supplier, one document set, one shipment.
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Diazo component for Lithol Rubine and related azo pigments.
View product →Nitrosylsulfuric Acid: frequently asked questions
Quick answers for European buyers. For anything else, email source@cheloragroup.com.
It is also sold as Nitrosylsulphuric acid, Nitrosonium bisulfate, NOHSO4. All refer to CAS 7782-78-7. Confirm the CAS number with any supplier before ordering.
Price depends on grade, volume, packing, Incoterm and destination port, and moves with raw material markets. Send us your requirement and we will quote in EUR or USD with a landed-cost breakdown, usually within one business day.
Nitrosylsulfuric Acid (CAS 7782-78-7) is a corrosive, fuming liquid or low-melting solid, typically supplied as a solution in sulfuric acid, used as a diazotisation and nitrosation reagent in dye, pigment and pharmaceutical synthesis.
Standard grade offers 96.0% minimum assay. Premium grade offers 98.0% minimum with lower free sulfuric acid and insoluble matter. Premium is recommended for diazotisation routes needing consistent, reproducible reactivity.
It is normally supplied as a concentrated solution in sulfuric acid, since the neat compound is a low-melting solid that is awkward to handle and transport. Tell us the strength and volume you need and we will confirm what we can supply. Order by CAS (7782-78-7).
Nitrosylsulfuric Acid is corrosive and can generate toxic nitrogen oxide fumes on decomposition or contact with water, and can face REACH, CLP and transport obligations depending on use. We confirm the current status for your application before quoting.
Store in sealed, vented, acid-resistant containers under dry conditions, away from water, organics, reducing agents and combustible materials, in a dedicated, access-controlled area.
It is a corrosive and oxidising dangerous good (class and UN number per SDS, commonly Class 8; always confirm on the current SDS). We pack it in UN-approved, moisture-excluded containers, apply CLP labels and ship through licensed forwarders under IMDG for sea and ADR for European road.
Yes. Laboratory and pilot samples are supplied with a COA and SDS so your team can qualify the grade. Mention sample needs in your enquiry.
REACH status is confirmed before we quote. We advise on importer-of-record arrangements and whether the substance is registered for your use. Send your use descriptor and we will confirm.
Get your Nitrosylsulfuric Acid quotation today
Send us the grade, volume, destination and Incoterm. You will receive a clear price, packaging options and a full document checklist, usually within one business day.
- Samples to full containers
- COA, SDS and DG documents included as standard
- Quote in EUR or USD, your choice of Incoterm