Technical Data Sheet

Nitric Acid 65%ACS Grade

ACS Grade · 65%

CAS Number
7697-37-2
Alliance Code
nitric-acid-65
Generated
2026-06-02
Last reviewed 2026-05-20 by Hossein Taki, Vice President.

1. Identity & Composition

Product Name
Nitric Acid 65%ACS Grade
Alliance Code
nitric-acid-65
Grade
ACS Grade
Concentration
65%
CAS Number
7697-37-2PubChem
Formula
HNO3PubChem
Molecular Weight
63.013PubChem
Product Type
solution

Available GradesSame CAS, alternate grades and concentrations

GradeConcentrationTypical AssaySKUTDS
This grade ACS Grade65%currentcurrent
ACS Grade70%nitric-acid-70-acs-grade-low-particleView TDS →
69%nitric-acid-acs-69-55-gallon-drumView TDS →
40%nitric-acid-40View TDS →
25%nitric-acid-25View TDS →
20%nitric-acid-20View TDS →
5%nitric-acid-5View 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.

Physical & Chemical Properties

One or more physical-property values are temporarily suppressed pending verification against vendor COA data. For complete properties refer to the Safety Data Sheet (SDS) or contact sales@alliancechemical.com.

Form
LiquidProduct record
Odor
Characteristic choking odorProduct record
Density
1.5 at 77 °F (NIOSH, 2024) - Denser than water; will sinkProduct record
Boiling Point
181 °F at 760 mmHg (NIOSH, 2024)Product record
Melting Point
-44 °F (NIOSH, 2024)Product record
Vapor Pressure
48 mmHg (NIOSH, 2024)Product record
Solubility (water)
Miscible (NIOSH, 2024)Product record

Strong acid — density and vapor-pressure values shown are at 20 °C; values shift markedly with concentration and temperature. Reference concentration-temperature curves before specifying equipment.

Materials of ConstructionService envelope ≈ 65%

MaterialRatingMax T (°C)NotesSource
Buna-N (NBR)
elastomer
PoorSwells and degradesCole-Parmer Chemical Compatibility
EPDM
elastomer
Good40Acceptable but FKM preferredCole-Parmer Chemical Compatibility
Viton (FKM)
elastomer
Excellent80Preferred elastomerCole-Parmer Chemical Compatibility
PTFE
fluoropolymer
Excellent200Lining and gasketsCole-Parmer Chemical Compatibility
Borosilicate Glass
glass ceramic
Excellent100Inert to most strong acids (avoid HF).Cole-Parmer Chemical Compatibility
Glass (borosilicate)
glass ceramic
Excellent100Inert under all conditionsCole-Parmer Chemical Compatibility
316 stainless steel
metal
Poor25Severe pitting; use only for vaporsCole-Parmer Chemical Compatibility
Aluminium
metal
Not recommendedReacts to form H2 gasCole-Parmer Chemical Compatibility
Carbon steel
metal
Not recommendedAggressive corrosionCole-Parmer Chemical Compatibility
Carbon Steel
metal
Not recommendedCatastrophic corrosion; never use.Cole-Parmer Chemical Compatibility
Hastelloy C-276
metal
Excellent90Premium HCl alloyCole-Parmer Chemical Compatibility
Inconel 625
metal
Good60Acceptable for dilute serviceCole-Parmer Chemical Compatibility
Tantalum
metal
Excellent100Best-in-class but expensiveCole-Parmer Chemical Compatibility
CPVC
thermoplastic
Excellent90Preferred for elevated temperatureCole-Parmer Chemical Compatibility
FRP (vinyl ester)
thermoplastic
Good60Common bulk-storage tank materialCole-Parmer Chemical Compatibility
HDPE
thermoplastic
Excellent60Standard drum / IBC materialCole-Parmer Chemical Compatibility
PVC
thermoplastic
Excellent60Standard piping for ambient serviceCole-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

Showing 17 of 17 materials compatible at the selected envelope.

MaterialRatingMax T (°C)Notes
Buna-N (NBR)
elastomer
PoorSwells and degrades
EPDM
elastomer
Good40Acceptable but FKM preferred
Viton (FKM)
elastomer
Excellent80Preferred elastomer
PTFE
fluoropolymer
Excellent200Lining and gaskets
Borosilicate Glass
glass ceramic
Excellent100Inert to most strong acids (avoid HF).
Glass (borosilicate)
glass ceramic
Excellent100Inert under all conditions
316 stainless steel
metal
Poor25Severe pitting; use only for vapors
Aluminium
metal
Not recommendedReacts to form H2 gas
Carbon steel
metal
Not recommendedAggressive corrosion
Carbon Steel
metal
Not recommendedCatastrophic corrosion; never use.
Hastelloy C-276
metal
Excellent90Premium HCl alloy
Inconel 625
metal
Good60Acceptable for dilute service
Tantalum
metal
Excellent100Best-in-class but expensive
CPVC
thermoplastic
Excellent90Preferred for elevated temperature
FRP (vinyl ester)
thermoplastic
Good60Common bulk-storage tank material
HDPE
thermoplastic
Excellent60Standard drum / IBC material
PVC
thermoplastic
Excellent60Standard piping for ambient service

Regulatory & Transport

DOT / 49 CFR

UN Number
UN2031Vendor Label
Hazard Class
8Adjudicated
Packing Group
IIAdjudicated
Proper Shipping Name
Nitric acid, other than red fuming, with at least 65 percent, but not more than 70 percent nitric acidAdjudicated

GHS / OSHA HazCom 2012

Signal Word
DangerAdjudicated
H-Codes (Hazard Statements)
H272, H290, H314, EUH071ECHA CLP Annex VI
P-Codes (Precautionary Statements)
P210, P220, P234, P260, P264, P280, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P321, P363, P370+P378, P405, P501ECHA CLP Annex VI

Occupational Exposure Limits

OSHA PEL (29 CFR 1910.1000)
2 ppm TWAOSHA 29 CFR 1910.1000
ACGIH TLV
unknown
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 65%ACS Grade. Every file included is SHA-256 hashed and listed in a manifest your QA team can audit.

Download audit packet

Catalog EquivalentsCross-reference vs major chemical suppliers

Sigma-Aldrich

SKUGradeConc.MatchNotes
438073ACS Reagent70%ExactACS Reagent fuming-free 70%

Cross-references are informational. Confirm against the manufacturer's current specification before substitution. Competitor trademarks are property of their respective owners.

Application Guidance

Nitric Acid 65%ACS Grade (ACS Grade) 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.
Handling Precautions
Use full PPE including face shield, acid-resistant gloves and apron. Add acid to water slowly with stirring; never reverse. Ventilation required.
Incompatibilities
Bases, active metals (aluminium, zinc), cyanides, sulfides, oxidizing agents. Reacts violently with organic anhydrides.
Shelf Life
24 months from date of manufacture in sealed, original packaging

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 at least 65 percent, but not more than 70 percent nitric acid, 8, PG II

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

NMFC Class
60
Placard
Corrosive
Packing Group
PG II

Revision History

Last reviewed 2026-05-20 by Hossein Taki, Vice President (Vice President, Alliance Chemical · CAGE Code 1LT50 · DOT Hazmat Registrant #2188383).

VersionDateChangeTrigger
1.02026-05-20Initial URL-first TDS published from canonical chemistry registry.initial

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.