Sodium nitrite

Sodium nitrite: inorganic salt (nitrite).

Sodium nitrite testing at Vanguard Laboratory: identity, purity and quantity $250 per sample, with results in 3 to 5 business days.

Structure

2D structure of Sodium nitrite

Sodium nitrite: 2D structure drawn from the PubChem record (CID 23668193).

Compound data

CAS number

7632-00-0

Formula

NaNO2

Molecular weight

68.99 g/mol

Type

Inorganic salt (nitrite)

Structure and names

Identity: Sodium nitrite

IUPAC name: sodium nitrite

How Vanguard tests Sodium nitrite

Method for the $250 identity, purity and quantity test: ICP-MS metal content, against a reference standard, with results in 3 to 5 business days.

The USP monograph covers identity by sodium and nitrite chemical tests and ion chromatography retention time, assay by ion chromatography with suppressed conductivity detection, aluminum, iron, selenium, calcium and potassium limits by ICP-MS, sodium nitrate by ion chromatography, carbonate and non-purgeable organic content by total organic carbon, sulfate and chloride limit tests, bacterial endotoxins, microbial enumeration, pH, insoluble matter, and loss on drying. Full testing to the USP Sodium Nitrite monograph is available and quoted.

What's reported

  • Metal content by ICP-MS, against the label or specification
  • Purity, as percent of total peak area
  • Quantity, against the label claim
  • Identity, reported as match or no match against the reference standard
  • With monograph testing (quoted): the monograph’s tests against its limits

Tests and prices

$250

Chromatographic purity and mg per unit by the method matched to the compound, identity against a reference standard. 1 unit.

$200

Chromatographic purity on bulk powder. 50 mg.

Add-on tests

Add-on testPrice
Identity and impurities
FTIR identity$90
CHNS elemental analysis (carbon, hydrogen, nitrogen, sulfur)$125
Chiral purity (where a chiral method exists; new methods quoted)$250
Water, solvents and salt form
Water content by Karl Fischer$60
Residual solvents$150
Counterions: chloride, acetate and TFA$70
Assay
Assay, % w/w (with raw powder purity; $250 together)+$50
Metals and conformity
Heavy metals: arsenic, cadmium, chromium, mercury and lead$150
Conformity: purity and quantity on more units from the same lot$100 per extra unit
Microbiology (injectables)
Endotoxin$210
Sterility or bioburden$150
Container closure integrity (CCI)$50
Screening
Fentanyl screen$50

10% off for 10 or more samples.

Need something else? Other tests are available on request.

Sample amount and turnaround

Purity and quantity is $250 per sample (1 unit) and raw powder purity is $200 for 50 mg, with results in 3 to 5 business days. Send the material sealed and labeled, with the label claim and the form it contains.

Salts, forms and compendial references

  • Sodium Nitrite (CAS 7632-00-0)
  • Tell us the salt or form the label states, so quantity is reported on the same basis.

Questions about Sodium nitrite testing

Is the $250 test the same as USP monograph testing?

No. The $250 test covers identity, purity and quantity by ICP-MS for sodium content. Full testing to the USP Sodium Nitrite monograph is available and quoted.

Why can't HPLC-UV be used for sodium nitrite purity?

Nitrite is a small inorganic anion with no organic structure, so it is measured by ion chromatography rather than reverse-phase HPLC. Sodium itself is measured by ICP-MS.

Does sodium nitrite change in storage?

Sodium nitrite slowly oxidizes to sodium nitrate in air and picks up moisture. Nitrate content and water are the usual reasons for a low nitrite assay.

Sources

https://pubchem.ncbi.nlm.nih.gov/compound/23668193

Identity facts from the USP monograph header for this compound.

Order

Start an order online, or send the compound name and the tests you need for a quote.