SEASTAR™’s BASELINE® Nitric Acid is intended for the most demanding requirements with all key metals under 10 ppt. BASELINE® Nitric Acid is packaged in 250mL, 500mL, 1L and 2L Fluoropolymer FEP Bottles. Please Contact Us about custom sizing, custom blends and variable concentrations.

Please choose from the following:BASELINE_4755_34

SEASTAR™’s BASELINE® Nitric Acid is in the class of analytical reagent products commonly referred to as ultra pure nitric acid, ultra trace nitric acid, or high purity nitric acid. Check your requirements to see how these products meet your suitability for your solution techniques ICP, ICP-MS, ICP-OES / ICP-AES, GFAAS, HR-ICP-MS, VPD HR-ICP-MS, etc.

Whether your requirements are for solution or matrix stability, or for a more complex, multiple acid geological digestion technique. SEASTAR™’s high purity products ensure there is no accumulation of the analytes being measured. Check our specifications to verify your analytical requirements. For these analytical techniques, SEASTAR™’s BASELINE® products should meet your most critical requirements.


Nitric Acid, 67 – 70% (by weight, HNO3)

Molar Mass: 63.01 g/mol Density1: 1.41 g/mL
CAS Number: 7697-37-2 Boiling Point2: 1210C
EINECS Number: 231-714-2 Melting Point3: -410C
Molarity4: 15 – 16 moles/litre Normality4: 15 – 16 moles/litre

1 68%, w/w HNO3, @250C
2 68%, w/w HNO3
3 70%, w/w HNO3
4 67 – 70%, w/w HNO3
1 – 4 These values are dependent on the specific lot analyis and vary within the listed assay range. If one requires higher levels precision, especially in the case of the molarity or normality, it is recommended to assay each bottle.

NitricAcid