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Merck

438073

Nitric acid

ACS reagent, 70%

Nitric acid
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About This Item

Empirical Formula (Hill Notation):
HNO3
CAS Number:
Molecular Weight:
63.01
EC Number:
MDL number:
UNSPSC Code:
12352106
eCl@ss:
38060304
PubChem Substance ID:
NACRES:
NA.21

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grade

ACS reagent

Quality Level

vapor pressure

8 mmHg ( 20 °C)

Assay

68.0-70.0% (ACS specification)
70%

form

liquid

ign. residue

≤5 ppm

color

APHA: ≤10

pH

<1.0

bp

120.5 °C (lit.)

density

1.413 g/mL at 20 °C (lit.)

anion traces

chloride (Cl-): ≤0.5 ppm
sulfate (SO42-): ≤1 ppm

cation traces

As: ≤0.01 ppm
Fe: ≤0.2 ppm
heavy metals (as Pb): ≤0.2 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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This Item
2257118438084378
grade

ACS reagent

grade

-

grade

-

grade

-

assay

68.0-70.0% (ACS specification), 70%

assay

≥99.999% trace metals basis, 70%

assay

≥65% (T)

assay

65.0-67.0%

Quality Level

200

Quality Level

100

Quality Level

100

Quality Level

200

form

liquid

form

liquid

form

liquid

form

liquid

pH

<1.0

pH

<1.0

pH

<1.0

pH

<1.0

cation traces

As: ≤0.01 ppm, heavy metals (as Pb): ≤0.2 ppm, Fe: ≤0.2 ppm

cation traces

-

cation traces

Ag: ≤0.01 mg/kg, Al: ≤0.05 mg/kg, As: ≤0.01 mg/kg, Ba: ≤0.01 mg/kg, Bi: ≤0.1 mg/kg, Ca: ≤0.5 mg/kg, Cd: ≤0.01 mg/kg, Co: ≤0.01 mg/kg, Cr: ≤0.02 mg/kg, Cu: ≤0.01 mg/kg, Fe: ≤0.2 mg/kg, Hg: ≤0.01 mg/kg, K: ≤0.05 mg/kg, Li: ≤0.01 mg/kg, Mg: ≤0.1 mg/kg, Mn: ≤0.01 mg/kg, Mo: ≤0.02 mg/kg, Na: ≤0.5 mg/kg, Ni: ≤0.02 mg/kg, Pb: ≤0.01 mg/kg, Sr: ≤0.01 mg/kg, Tl: ≤0.05 mg/kg, Zn: ≤0.05 mg/kg

cation traces

Ag: ≤0.01 mg/kg, Al: ≤0.05 mg/kg, As: ≤0.01 mg/kg, Ba: ≤0.01 mg/kg, Bi: ≤0.1 mg/kg, Ca: ≤0.5 mg/kg, Cd: ≤0.01 mg/kg, Co: ≤0.01 mg/kg, Cr: ≤0.02 mg/kg, Cu: ≤0.01 mg/kg, Fe: ≤0.2 mg/kg, Hg: ≤0.005 mg/kg, K: ≤0.05 mg/kg, Li: ≤0.01 mg/kg, Mg: ≤0.1 mg/kg, Mn: ≤0.01 mg/kg, Mo: ≤0.02 mg/kg, Na: ≤0.5 mg/kg, Ni: ≤0.02 mg/kg, Pb: ≤0.01 mg/kg, Sr: ≤0.01 mg/kg, Tl: ≤0.05 mg/kg, Zn: ≤0.05 mg/kg

General description

Nitric acid (HNO3) is a highly corrosive mineral acid.[1][2] It is usually utilized for abstracting transition metal catalyst from single-walled carbon nanotubes (SWNTs) in order to purify them.[3] The effect of nitric acid on the oxidation of multiwalled carbon nanotubes (MWCNTs) has been investigated by sample weight, Raman spectrum, solubility, morphology and alignment examinations.[4]

Application

Nitric acid was used to increase the number of acid sites by altering the surface of activated carbon.[5]
It may be used:
  • In combination with acetic anhydride and zeolite catalysts for the preparation of p-nitrotoluene with high regioselectivity.[6]
  • In the pretreatment of rice straw for enhanced production of xylose.[7]
  • To minimize the extent of cation ordering in LiNi0.5Mn1.5O4, a transition metal-substituted spinel material, by surface treatment.[8]

Other Notes

SKU-Pack sizes with -P are packaged in poly bottles

Signal Word

Danger

Hazard Statements

Hazard Classifications

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

Supplementary Hazards

Storage Class Code

5.1B - Oxidizing hazardous materials

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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Zeolite-Assisted Regioselective Nitration of Toluene in Acetonitrile with Nitric Acid/Acetic Anhydride.
Shi C and Tai Y.
Asian Journal of Chemistry, 27(7), 2420-2422 (2015)
THE TREATMENT OF ACID AND ALKALI BURNS: AN EXPERIMENTAL STUDY.
E C Davidson
Annals of surgery, 85(4), 481-489 (1927-04-01)
Structurally stabilized LiNi0.5 Mn1.5O4 with enhanced electrochemical properties through nitric acid treatment.
Park JS, et al.
Journal of Power Sources, 230, 138-142 (2013)
Ilgook Kim et al.
Carbohydrate polymers, 99, 563-567 (2013-11-28)
In this study, nitric acid (HNO₃) was evaluated as an acid catalyst for rice straw pretreatment, and, after neutralization, as a sole nitrogen source for subsequent fermentation. Response surface methodology was used to obtain optimal pretreatment condition with respect to
Chemical burn with nitric acid and xanthoproteic reaction.
Daniel A González-Padilla et al.
The Journal of emergency medicine, 48(4), e101-e102 (2014-12-10)

Articles

Acid and base chart lists the strength of acids and bases (strongest to weakest) in order. Simple to use laboratory reference chart for scientists, researchers and lab technicians.

Questions

1–3 of 3 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf

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  2. What is the total weight of one 2.5L bottle?

    1 answer
    1. As received, the gross weight of the 2.5L package is approximately 4.9 Kg. The empty 2.5 L bottle has a weight of approximately 1.2 Kg.

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  3. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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Reviews

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  1. PA
    • Review 1
    • Votes 2
    5 out of 5 stars.

    excellent

    Fast delivery, good product. Was in need and they delivered

    Helpful?

    • Review 1
    • Votes 2
    5 out of 5 stars.

    Nitric acid

    This product arrived quickly and safely. Product is as promised.

    Helpful?

  2. Ontario
    • Review 1
    • Votes 0
    3 out of 5 stars.

    Shipped in a solid metal can with no easy or recommended safe way of opening the can. Overpackaging to what end? Please add safe opening methods. What research lab has a can opener?

    Helpful?

    1. Response from Merck KGaA:

      Thank you for your review. We are sorry to hear that your experience did not match your product expectations. We encourage customers who experience problems with our products to contact us for additional technical support. Please visit https://www.sigmaaldrich.com/US/en/support/customer-support to submit a Product Technical Inquiry.

  3. 1 Ratings-only review

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