Safety data sheet for Nitric acid
CAS 7697-37-2
This is the free preview of a draft SDS for Nitric acid — Sections 1, 2 and 9, generated from the sources named below. The full 16-section draft, with your own company in Section 1, is $5 per document.
Typically documented by: Metal finishing, laboratory reagent.
Draft safety data sheet — preview
Sections 1, 2, 9 of 16
- CAS number
- 7697-37-2
- Molecular formula
- HNO3
- Molecular weight
- 63.013 g/mol
- Signal word
- Danger
Hazard classification
- GHS03 — Oxidising
- GHS05 — Corrosive
- GHS06 — Acute toxicity
- H290: May be corrosive to metals.
- H272: May intensify fire; oxidizer.
- H331: Toxic if inhaled.
- H314: Causes severe skin burns and eye damage.
Section 1 — Identification
1.1 Product identifier
Product identifier: Nitric Acid
Chemical name (IUPAC): nitric acid
CAS number: 7697-37-2
PubChem CID reference: 944
Synonyms: NITRIC ACID; Azotic acid; Aqua fortis; Salpetersaeure; Nital; HNO3; Acide nitrique; Acidum nitricum; Nitricum acidum; Nitrous fumes
Section 2 — Hazards Identification
2.1 Classification of the substance or mixture
Classification basis: OSHA 29 CFR 1910.1200 Appendix A, aligned to the GHS Rev. 7 hazard classes this sheet resolves: Met. Corr. 1, Skin Corr. 1A, Acute Tox. 3 (Inhalation).
Classification: Corrosive to Metals, Category 1 (Met. Corr. 1) [H290]
Classification: Skin Corrosion, Category 1A (Skin Corr. 1A) [H314]
Classification: Acute Toxicity, Category 3 — Inhalation (Acute Tox. 3 (Inhalation)) [H331]
2.2 Label elements
Signal word: Danger
GHS pictograms: GHS03 (Oxidizing), GHS05 (Corrosion), GHS06 (Toxic)
Hazard statement: H290: May be corrosive to metals.
Hazard statement: H272: May intensify fire; oxidizer.
Hazard statement: H331: Toxic if inhaled.
Hazard statement: H314: Causes severe skin burns and eye damage.
Precautionary statement: P234: Keep only in original packaging.
Precautionary statement: P390: Absorb spillage to prevent material damage.
Precautionary statement: P260: Do not breathe dust/fume/gas/mist/vapors/spray.
Precautionary statement: P280: Wear protective gloves, protective clothing, eye protection, face protection, and hearing protection.
Precautionary statement: P264: Wash hands thoroughly after handling.
Precautionary statement: P303+P361+P353: IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water or shower.
Precautionary statement: P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do - continue rinsing.
Precautionary statement: P301+P330+P331: IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
Section 9 — Physical and Chemical Properties
9.1 Information on basic physical and chemical properties
Physical form: Liquid
Appearance: Transparent, colorless, or yellowish, fuming, hygroscopic, corrosive liquid
Odor: Characteristic choking odor
Boiling point: 82.8°C (181°F) at 1013 hPa
Melting point: -41.6°C (-43°F)
Density: 1.5129 g/cm³ at 20°C
Vapor pressure: 84.1 hPa at 25°C
Water solubility: Miscible
Log Pow (log Kow): -0.21
Vapor density: 1 (air = 1)
Viscosity: 1.092 mPa.s at 0 °C; 0.746 mPa.s at 25 °C; 0.617 mPa.s at 40 °C
Not found in the public records searched: flash point, lower explosive limit, upper explosive limit, auto-ignition temperature and pH. Enter these from your supplier's safety data sheet or your own test report before the draft is issued.
Occupational exposure limits for Nitric acid
The airborne limits on public record in the United States. These are transcribed from the tables named in each row, not derived. The full draft puts them in Section 8 with the control and PPE guidance.
OSHA PEL — TWA (8 h)
2 ppm (5 mg/m³)
OSHA Annotated PEL Table Z-1
NIOSH REL — TWA (up to 10 h)
2 ppm (5 mg/m³)
OSHA Annotated PEL Table Z-1 (NIOSH REL column)
NIOSH REL — STEL (15 min)
4 ppm
OSHA Annotated PEL Table Z-1 (NIOSH REL column)
Where each value came from
- Odor — Hazardous Substances Data Bank (HSDB)
- O'Neil, M.J. (ed.). The Merck Index - An Encyclopedia of Chemicals, Drugs, and Biologicals. Whitehouse Station, NJ: Merck and Co., Inc., 2006, p. 1138
- View the record
- Boiling point — Hazardous Substances Data Bank (HSDB)
- Lide, D.R. CRC Handbook of Chemistry and Physics 88th Edition 2007-2008. CRC Press, Taylor & Francis, Boca Raton, FL 2007, p. 4-78
- View the record
- Melting point — Hazardous Substances Data Bank (HSDB)
- Same reference as boiling point above.
- View the record
- Density — Hazardous Substances Data Bank (HSDB)
- Same reference as boiling point above.
- View the record
- Water solubility — Hazardous Substances Data Bank (HSDB)
- Clarke SI, Mazzafro WJ ; Kirk-Othmer Encyclopedia of Chemical Technology. (1999-2011). New York, NY: John Wiley & Sons; Nitric Acid. Online Posting Date: 13 May 2005
- View the record
- Viscosity — Hazardous Substances Data Bank (HSDB)
- Gerhartz, W. (exec ed.). Ullmann's Encyclopedia of Industrial Chemistry. 5th ed.Vol A1: Deerfield Beach, FL: VCH Publishers, 1985 to Present, p. VA17: 294 (1991)
- View the record
A value with no row here was assembled from more than one record, so no single record is credited for it. The draft you buy carries this table as an appendix covering all 16 sections.
Sources
- ECHA C&L Inventory — harmonised CLP entry
- Hazardous Substances Data Bank (HSDB)
- OSHA Annotated PEL Table Z-1
- OSHA Annotated PEL Table Z-1 (NIOSH REL column)
- PubChem — GHS classification
- PubChem — compound record
- PubChem — names and identifiers
- PubChem — regulatory information
- PubChem — toxicity data
- PubChem — transport information
Sections 1.3 and 1.4 are withheld here because the supplier and emergency contact blocks carry your own company details in the draft you buy. Every draft needs review by a competent person before it is issued.
Measured values for Nitric acid, and where each one comes from
23 measured values for 7 properties, read from 4 public databases. On 2 properties the records differ. Each reading is shown with its own record. Follow any record to read the value at its source.
Boiling point
4 records agree
Used with vapour pressure to judge how readily the substance reaches the air you breathe.
- 181 °F
- NIOSH Pocket Guide
- 83 °C @760 [mm Hg]
- PAC Chemical Database, U.S. Department of Energy
Melting point
4 records agree
Fixes the physical state at handling temperature, which the label and the transport class depend on.
- -44 °F
- NIOSH Pocket Guide
Vapour pressure
4 records differ
The higher it is, the faster the substance evaporates into the workplace air at room temperature.
- 63.1 mm Hg at 25 °C
- Hazardous Substances Data Bank (HSDB)
- 48 mmHg
- NIOSH Pocket Guide
- 75 [mm Hg] @28.4 °C
- PAC Chemical Database, U.S. Department of Energy
Density
4 records differ
Needed to convert between mass and volume on the label, in transport papers and in a spill estimate.
- 1.5129 g/cu cm at 20 °C
- Hazardous Substances Data Bank (HSDB)
- (77 °F): 1.50
- NIOSH Pocket Guide
- 1.5129 @ 20°C
- PAC Chemical Database, U.S. Department of Energy
Solubility
3 records, each a different case
Determines spill behaviour, the right extinguishing media and the correct first-aid rinse.
- Very soluble in water
- Hazardous Substances Data Bank (HSDB)
- Miscible with water
- Hazardous Substances Data Bank (HSDB)
- Miscible
- NIOSH Pocket Guide
Viscosity
1 record
Governs how far a spill spreads and how fast it soaks into a surface or a sorbent.
- 1.092 mPa.s at 0 °C; 0.746 mPa.s at 25 °C; 0.617 mPa.s at 40 °C
- Hazardous Substances Data Bank (HSDB)
Odour
3 records, each a different case
Odour is a warning property only. Many substances are hazardous well below the concentration you can smell.
- Characteristic choking odor
- Hazardous Substances Data Bank (HSDB)
- Acrid; Sweet to acrid
- Hazardous Substances Data Bank (HSDB)
- Acrid, suffocating odor
- Hazardous Substances Data Bank (HSDB)
These are the public records read for Nitric acid, published here unchanged. Where two records disagree, the draft you buy states the value and names the record behind it, so a reviewer can see what was chosen. Every draft needs review by a competent person before it is issued.
Get the full draft SDS for Nitric acid
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