Industrial chemicals · Taylor, TXTechnical Data Sheet
Nitric Acid 70% Technical Grade
Technical · 70%
- CAS number
- 7697-37-2
- UN number
- UN2031
- Hazard class · packing group
- 8 · PG II
- Structure
Structure · PubChem - Grade
- Technical · 70%
- Signal word
- Danger
- Hazards
- Proper shipping name
- Nitric acid, other than red fuming, with at least 65 percent, but not more than 70 percent nitric acid
Identity & Composition
- Product Name
- Nitric Acid 70% Technical Grade
- Alliance Code
- nitric-acid-70-technical-grade
- Grade
- Technical
- Concentration
- 70%
- CAS Number
- 7697-37-2Adjudicated
- Formula
- HNO3Adjudicated
- Molecular Weight
- 63.013Adjudicated
- Product Type
- Solution
Specifications
| Test | Specification | Typical | Method | Source |
|---|---|---|---|---|
| Assay (HNO3) | 68.0-70.0 % | 68.9 % | Acidimetry | Interpreted |
| Arsenic (As) | 0.000001 % max | 0.00000010 % | — | Interpreted |
| Chloride (Cl) | 0.00005% max | 0.000012 % | — | Interpreted |
| APHA colour | 10 max | 4 | — | Interpreted |
| Heavy metals (as Pb) | 0.00002% max | 0.0000029 % | — | Interpreted |
| Iron (Fe) | Max 0.2 ppm | 0.031 ppm | — | Interpreted |
| Nitrite (NO2) | 0.0005% | 0.0005% | — | Interpreted |
| Reducing substances to KMnO4 | passes test | Passes test | — | Interpreted |
| Phosphate (PO4) | 0.0001 % | 0.000012 % | — | Interpreted |
| Residue on ignition (as SO4) | 0.0005 % max | 0.00009 % | — | Interpreted |
| Sulfate (SO4) | 0.0001% max | 0.000022 % | — | Interpreted |
| Nickel (Ni) | Max 0.000005 % | 0.00000049 % | ICP-MS | Interpreted |
| Mercury (Hg) | Max 0.0000005 % | 0.000000016 % | Cold vapour AAS | Interpreted |
Values are reproduced from the current product reference. Source labels do not by themselves establish a supplier guarantee or a test result for your lot. Confirm applicable acceptance limits and request lot-specific documentation.
Available GradesSame CAS, alternate grades and concentrations
| Grade | Concentration | Typical Assay | SKU | TDS |
|---|---|---|---|---|
| This grade Technical | 70% | — | current | current |
| ACS Grade | 70% | — | nitric-acid-70-acs-grade-low-particle | View TDS → |
| ACS Grade | 69% | — | nitric-acid-acs-69-55-gallon-drum | View TDS → |
| Technical | 69% | — | nitric-acid-69-technical-grade | View TDS → |
| ACS Grade | 65% | — | nitric-acid-65 | View TDS → |
| Technical | 65% | — | nitric-acid-65-technical-grade | View TDS → |
| Technical | 40% | — | nitric-acid-40 | View TDS → |
| Technical | 30% | — | nitric-acid-30 | 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.
Physical & Chemical Properties
| Property | Value | Source |
|---|---|---|
| Appearance | Colorless and free from suspended matter or sediment | Interpreted |
| Form | Liquid | Published reference |
| Odor | Pungent, acrid (choking) odor | Adjudicated |
| pH | < 1 at 20 °C | Adjudicated |
| Specific Gravity | 1.405–1.415 at 20 °C (water at 4 °C = 1) | Adjudicated |
| Density | 1.405 - 1.415 | Interpreted |
| Boiling Point | 119.3 to 120.5 °C (247 to 249 °F) (aqueous solution) | Adjudicated |
| Melting Point | -45 to -41 °C (-49 to -42 °F), freezing point (aqueous solution) | Adjudicated |
| Flash Point | Not flammable (oxidizer) | Published reference |
| Vapor Pressure | 7–8 mmHg (9.4–11 hPa) at 20 °C | Adjudicated |
| Vapor Density | 2.2–2.3 (air = 1) | Adjudicated |
| Solubility (water) | Miscible with water in all proportions (releases heat) | Adjudicated |
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 ≈ 70%
MOC ratings are required for this chemical class but no compatibility data has been seeded yet. Treat as no-data and consult Alliance Technical Services before equipment selection.
Regulatory & Transport
DOT / 49 CFR
- UN Number
- UN2031Adjudicated
- 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 HCS 2024
- Signal Word
- DangerAdjudicated
- H-Codes (Hazard Statements)
- EUH071, H272, H290, H314, H331Adjudicated
- P-Codes (Precautionary Statements)
- P210, P220, P234, P260, P264, P271, P280, P284, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P311, P320, P321, P363, P370+P378, P390, P403+P233, P405, P406, P501Adjudicated
Occupational Exposure Limits
- OSHA PEL (29 CFR 1910.1000)
- 2 ppm TWAOSHA 29 CFR 1910.1000
- ACGIH TLV
- 2 ppm TWA / 4 ppm STELAdjudicated
- 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: NIOSH Pocket Guide for REL/IDLH, OSHA Z-Tables for PEL. Always verify against the latest regulatory text before shipment-critical decisions.
Health & Fire Hazard
Acute Toxicology
- LC₅₀ Inhalation (rat, 4 h)
- > 2.65 mg/LAdjudicated
Acute toxicology values from SDS Section 11 or NIOSH RTECS.
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 70% Technical Grade. Every file included is SHA-256 hashed and listed in a manifest your QA team can audit.
Applications
Metal etching, cleaning and passivation; fertilizer and chemical manufacture; pH adjustment.Adjudicated
Restrictions on Use: For industrial, professional and laboratory use only. Never mix with organic solvents, alcohols or other combustible materials.
Storage & Handling
- Recommended Storage
- Store away from combustible and organic materials, reducing agents, bases and metals, and not on wooden floors or pallets. Use glass, PTFE, PVC or stainless-steel containers, never ordinary metal containers. Protect from sunlight and heat.Adjudicated
- 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
- Combustible and organic materials (wood, paper, oils); alcohols, acetone, acetic anhydride, acetonitrile and acrylonitrile; reducing agents; bases; alkali metals, metal powders and most metals (releases hydrogen and nitrogen oxides); cyanides and sulfides.Adjudicated
- 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 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.
Revision History
| Version | Date | Change | Trigger |
|---|---|---|---|
| 1.6 | 2026-10-08 | Canonical data updated: 21 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.5 | 2026-10-07 | Canonical data updated: 3 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.4 | 2026-10-05 | Canonical data updated: 1 field changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.3 | 2026-09-30 | Canonical data updated: 1 field changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.2 | 2026-08-27 | Canonical data updated: 2 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.1 | 2026-07-17 | Canonical data updated: 3 fields changed via the provenance/adjudication pipeline.
| 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.