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Merck
CN

258121

Sigma-Aldrich

Nitric acid

ACS reagent, ≥90.0%

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About This Item

Empirical Formula (Hill Notation):
HNO3
CAS Number:
7697-37-2
Molecular Weight:
63.01
EC Number:
231-714-2
MDL number:
MFCD00011349
UNSPSC Code:
12352106
PubChem Substance ID:
24855630

Key Documents

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grade

ACS reagent

Quality Level

200

vapor density

1.3 (vs air)

vapor pressure

6.6 mmHg ( 20 °C)
8 mmHg ( 20 °C)

description

dilution test passes test

Assay

≥90.0%

form

liquid

ign. residue

≤0.002%

bp

120.5 °C (lit.)

density

1.48 g/mL at 20 °C (lit.)

anion traces

chloride (Cl-): ≤0.7 ppm
dissolved oxides: ≤0.1% (as N2O3)
sulfate (SO42-): ≤5 ppm

cation traces

As: ≤0.3 ppm
Fe: ≤2 ppm
heavy metals (as Pb): ≤5 ppm

SMILES string

O[N+]([O-])=O

InChI

1S/HNO3/c2-1(3)4/h(H,2,3,4)

InChI key

GRYLNZFGIOXLOG-UHFFFAOYSA-N

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Packaging

25 g packaged in clear glass bottles; 500 g packaged in poly-coated clear glass bottles

Other Notes

This product has been replaced by 695041-Sigma-Aldrich | Nitric acid ACS reagent, ≥90.0%

Signal Word

Danger

Hazard Statements

H272,H290,H314,H331

Hazard Classifications

Acute Tox. 3 Inhalation - Eye Dam. 1 - Met. Corr. 1 - Ox. Liq. 3 - Skin Corr. 1A

Supplementary Hazards

EUH071

Storage Class Code

5.1A - Strongly oxidizing hazardous materials

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
03459ED
S47064
S43731
S41157
S32886

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  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. What is the molarity of this 90% nitric acid, Product 258121?

    Using the density of 1.50 g/mL and the molecular weight of 63.01 g/mol, we can convert the 90% (wt/wt) to a molarity of about 21.4 M.

  4. What is the difference between Product 258121 and the 90% red, fuming nitric acid (Product No. 309079)?

    Product 258121 is a colorless to yellow solution of nitric acid that has at least 90% as HNO3 and less than 0.1% dissolved oxides. Product 309079 appears red because it can contain 5-10% of dissolved nitrogen oxide (as N2O3 ).

  5. What is the pH of Nitric acid,  Product 258121?

    As a 1% solution in water, 90% nitric acid is expected to have a pH that is less than 1.

  6. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  7. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

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