Technical Data Sheet

Nitric Acid 30%

Technical · 30%

Alliance Code: nitric-acid-30
Reviewed: 2026-08-27
Revision: 1.2

CAS number: 7697-37-2
UN number: UN2031
Hazard class · packing group: 8 · PG II
Structure: Structure · PubChem
Grade: Technical · 30%
Signal word: Danger
Hazards: CorrosiveAcute toxicityH290 H314 H331
Proper shipping name: Nitric acid, other than red fuming, with more than 20 percent and less than 65 percent nitric acid

Last reviewed 2026-08-27.

Identity & Composition

Product Name: Nitric Acid 30%
Alliance Code: nitric-acid-30
Grade: Technical
Concentration: 30%
CAS Number: 7697-37-2Adjudicated
Formula: HNO3Adjudicated
Molecular Weight: 63.013Adjudicated
Product Type: solution

Specifications

Not yet characterized — Specification limits for this product have not been published yet. Contact Technical Services for the current specification and available lot-specific documentation.

Available GradesSame CAS, alternate grades and concentrations

Grade	Concentration	Typical Assay	SKU	TDS
This grade Technical	30%	—	current	current
ACS Grade	70%	—	nitric-acid-70-acs-grade-low-particle	View TDS →
Technical	70%	—	nitric-acid-70-technical-grade	View TDS →
ACS Grade	69%	—	nitric-acid-acs-69-55-gallon-drum	View TDS →
Technical	69%	—	nitric-acid-69-technical-grade	View TDS →
Technical	65%	—	nitric-acid-65-technical-grade	View TDS →
Technical	40%	—	nitric-acid-40	View TDS →
Technical	25%	—	nitric-acid-25	View TDS →
Technical	20%	—	nitric-acid-20	View TDS →
Technical	5%	—	nitric-acid-5	View TDS →

Typical assay shown is the rolling-window mean from the sibling product's most recent lots. Grade selection drives downstream end-use — verify the sibling grade matches your specification before substitution.

Materials of ConstructionService envelope ≈ 30%

Material	Rating	Max T (°C)	Notes	Source
Buna-N (NBR) elastomer	Poor	—	Hardens and cracks; do not use.	Parker O-ring Chemical Compatibility
EPDM elastomer	Good	80	Standard for HCl and H2SO4 gaskets.	Parker O-ring Chemical Compatibility
Viton (FKM) elastomer	Good	80	Acceptable for HCl gaskets up to 37 %.	Parker O-ring Chemical Compatibility
PTFE fluoropolymer	Excellent	200	Universal acid compatibility.	Cole-Parmer Chemical Compatibility
PVDF (Kynar) fluoropolymer	Excellent	120	Excellent for HCl piping at elevated temperature.	Cole-Parmer Chemical Compatibility
Borosilicate Glass glass ceramic	Excellent	100	Inert to most strong acids (avoid HF).	Cole-Parmer Chemical Compatibility
316 stainless steel metal	Poor	25	Severe pitting; use only for vapors	Cole-Parmer Chemical Compatibility
Aluminium metal	Not recommended	—	Reacts to form H2 gas	Cole-Parmer Chemical Compatibility
Carbon Steel metal	Not recommended	—	Catastrophic corrosion; never use.	Cole-Parmer Chemical Compatibility
Hastelloy C-276 metal	Excellent	80	Preferred metal for concentrated HCl service.	Haynes International C-276 datasheet
Inconel 625 metal	Good	60	Acceptable for dilute service	Cole-Parmer Chemical Compatibility
Tantalum metal	Excellent	100	Best-in-class but expensive	Cole-Parmer Chemical Compatibility
CPVC thermoplastic	Excellent	90	Higher-temp variant of PVC.	Cole-Parmer Chemical Compatibility
FRP (vinyl ester) thermoplastic	Good	60	Common bulk-storage tank material	Cole-Parmer Chemical Compatibility
HDPE thermoplastic	Excellent	60	Standard tank/drum material for HCl up to 37 %.	Cole-Parmer Chemical Compatibility
PVC thermoplastic	Excellent	60	Common for piping; verify rating for service > 50 °C.	Cole-Parmer Chemical Compatibility

Ratings reflect the service envelope (concentration × temperature) shown. Always confirm against your specific duty cycle and contact-time before equipment selection. The most cautious rating across overlapping references is shown.

Materials Selection Tool

Concentration (% w/w): 30%

Temperature (°C): 20

Showing 16 of 16 material ratings within the selected envelope.

Material	Rating	Max T (°C)	Notes
Buna-N (NBR) elastomer	Poor	—	Hardens and cracks; do not use.
EPDM elastomer	Good	80	Standard for HCl and H2SO4 gaskets.
Viton (FKM) elastomer	Good	80	Acceptable for HCl gaskets up to 37 %.
PTFE fluoropolymer	Excellent	200	Universal acid compatibility.
PVDF (Kynar) fluoropolymer	Excellent	120	Excellent for HCl piping at elevated temperature.
Borosilicate Glass glass ceramic	Excellent	100	Inert to most strong acids (avoid HF).
316 stainless steel metal	Poor	25	Severe pitting; use only for vapors
Aluminium metal	Not recommended	—	Reacts to form H2 gas
Carbon Steel metal	Not recommended	—	Catastrophic corrosion; never use.
Hastelloy C-276 metal	Excellent	80	Preferred metal for concentrated HCl service.
Inconel 625 metal	Good	60	Acceptable for dilute service
Tantalum metal	Excellent	100	Best-in-class but expensive
CPVC thermoplastic	Excellent	90	Higher-temp variant of PVC.
FRP (vinyl ester) thermoplastic	Good	60	Common bulk-storage tank material
HDPE thermoplastic	Excellent	60	Standard tank/drum material for HCl up to 37 %.
PVC thermoplastic	Excellent	60	Common for piping; verify rating for service > 50 °C.

Regulatory & Transport

DOT / 49 CFR

UN Number: UN2031Adjudicated
Hazard Class: 8Adjudicated
Packing Group: IIAdjudicated
Proper Shipping Name: Nitric acid, other than red fuming, with more than 20 percent and less than 65 percent nitric acidAdjudicated

GHS / OSHA HazCom 2012

Signal Word: DangerAdjudicated
H-Codes (Hazard Statements): H290, H314, H331Adjudicated
P-Codes (Precautionary Statements): P234, P260, P264, P271, P280, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P321, P363, P390, P403+P233, P405, P406, P501Adjudicated

Occupational Exposure Limits

OSHA PEL (29 CFR 1910.1000): —no canonical
ACGIH TLV: —no canonical
NIOSH REL: 2 ppm TWA / 4 ppm STELNIOSH Pocket Guide
NIOSH IDLH: 25 ppmNIOSH Pocket Guide

Transport descriptions reflect 49 CFR 172.101 lookup at time of publication. Sourced data: ECHA CLP Annex VI for harmonised classifications, NIOSH Pocket Guide for REL/IDLH, OSHA Z-Tables for PEL. Always verify against the latest regulatory text before shipment-critical decisions.

Supplier Qualification Packet

One zipped download containing the TDS, SDS, latest lot COA (when available), and a fresh Letter of Continuing Guaranty for Nitric Acid 30%. Every file included is SHA-256 hashed and listed in a manifest your QA team can audit.

Download audit packet

Application Guidance

Nitric Acid 30% (Technical) is a strong mineral acid used across pH control, metal pickling, food and beverage processing, and chemical synthesis. Grade and concentration determine the appropriate end-use and materials.

Metal pickling, etching, and surface preparation
pH adjustment in water and wastewater treatment
Regeneration of ion-exchange resins
Chemical manufacturing and synthesis
Food and beverage processing (food-grade only)

Always add acid to water, never water to acid. Use lined or fluoropolymer piping rated for the concentration; carbon steel is not suitable for dilute acid service.

Storage & Handling

Recommended Storage: Cool, dry, well-ventilated area in compatible containers (lined steel, HDPE, FRP — verify per concentration). Segregate from bases, oxidizers, metals, and cyanides.Class-level guidance — not product-specific; the SDS controls.
Handling Precautions: Use full PPE including face shield, acid-resistant gloves and apron. Add acid to water slowly with stirring; never reverse. Ventilation required.Class-level guidance — not product-specific; the SDS controls.
Incompatibilities: Bases, active metals (aluminium, zinc), cyanides, sulfides, oxidizing agents. Reacts violently with organic anhydrides.Class-level guidance — not product-specific; the SDS controls.
Shelf Life: Consult Technical Services for product-specific shelf life

For full hazard, PPE, and emergency response guidance, refer to the Safety Data Sheet (SDS) for this product. The SDS controls in all cases where guidance differs.

Packaging & Logistics

Shipping Description (US DOT)

UN2031, Nitric acid, other than red fuming, with more than 20 percent and less than 65 percent nitric acid, 8, PG II

Sourced from 49 CFR 172.101. Confirm against shipping documents and carrier requirements before tender.

NMFC Class

Placard

Corrosive

Packing Group

PG II

Revision History

Version	Date	Change	Trigger
1.2	2026-08-27	Canonical data updated: 2 fields changed via the provenance/adjudication pipeline. oel_niosh_rel· canonical change (coa.data_provenance / adjudication) oel_idlh· canonical change (coa.data_provenance / adjudication)	canonical_change
1.1	2026-08-04	Canonical data updated: 12 fields changed via the provenance/adjudication pipeline. casNumber· canonical change (coa.data_provenance / adjudication) formula· canonical change (coa.data_provenance / adjudication) molecularWeight· canonical change (coa.data_provenance / adjudication) unNumber· canonical change (coa.data_provenance / adjudication) hazardClass· canonical change (coa.data_provenance / adjudication) packingGroup· canonical change (coa.data_provenance / adjudication) dotProperShippingName· canonical change (coa.data_provenance / adjudication) signalWord· canonical change (coa.data_provenance / adjudication) ghsClassification· canonical change (coa.data_provenance / adjudication) hazard_h_codes· canonical change (coa.data_provenance / adjudication) hazard_p_codes· canonical change (coa.data_provenance / adjudication) dotSubsidiaryHazardClass· canonical change (coa.data_provenance / adjudication)	canonical_change

This Technical Data Sheet is provided for technical reference. The Safety Data Sheet (SDS) controls in all cases where guidance differs. Values reflect Alliance Chemical canonical data at time of generation; subsequent revisions are recorded in the Revision History above.