CAS 7697-37-2
Nitric Acid 68%
CAS 7697-37-2HNO363.01 g/mol
Nitric Acid 68% is an industrial-grade chemical essential in metal treatment and chemical production. Known for its non-fuming nature at azeotropic concentration, this clear to pale yellow liquid is widely used in fertilizer production, explosives manufacturing, and metal pickling. Industries utilizing nitric acid include agriculture, mining, and laboratories throughout East Africa. This product’s role in chemical synthesis as a nitrating agent and pH controller makes it a staple for manufacturing processes.
Main applicationMetal pickling — removes scale and regenerates chromium-oxide layers
Nitric Acid 68% plays a crucial role in vital industrial processes such as fertilizer production and metal treatment, which are essential to agriculture and manufacturing sectors in Kenya and East Africa. Its effectiveness in metal pickling, combined with its role as a nitration agent, underscores its value in both traditional and modern chemical applications. This product's availability in various packaging options further supports its practicality in diverse industrial settings.
Also known as
- Nitric acid
- Aqua fortis

Trade pricing
Quoted per enquiry
Pricing depends on volume, grade and delivery point. Our desk responds within two working hours.
Available packaging
- Available in 15 kg containers
Documentation
Batch-specific COA issued with every consignment.
Technical specifications
- CAS number
- 7697-37-2
- Chemical formula
- HNO3
- Molecular weight
- 63.01 g/mol
- Grade
- Technical grade
- Appearance
- Clear to pale yellow liquid
- Density
- 1.40–1.42 g/cm³
- Concentration
- 68% %
- Boiling Point
- 120 °C
- Melting Point
- –42 °C
Nitric Acid 68% is supplied as a clear to pale yellow liquid, with a non-fuming azeotropic composition ideal for industrial applications. This specific grade is characterized by a stable purity of 68-70% by weight, making it suitable for a range of processes. Its density ranges from 1.40 to 1.42 g/cm³ at 20-25°C, perfectly aligning with industrial requirements for standard handling and usage. The grade at 68% ensures optimal non-fuming characteristics, enhancing safety and ease of use in enclosed environments. When purchasing, it's critical to specify the concentration and intended use to ensure compatibility with existing processes.
Delivery
Nitric Acid 68% is dispatched from our Nairobi warehouse across Kenya, and export delivery is arranged to the wider East African market. Lead time depends on quantity and grade and is confirmed with your quotation — see delivery and collection for the towns we reach and how dispatch works.
Applications & uses
- Metal pickling — removes scale and regenerates chromium-oxide layers
- Fertilizer production — precursor to ammonium nitrate
- Explosives manufacturing — nitration in mixed acid systems
- pH adjustment and chemical synthesis — control and feedstock
- Etching and engraving — precision surface treatment
- Jewelry cleaning — removes tarnish and impurities
- Wastewater pH adjustment — balances pH levels
- Copper refining — extraction and purification
- Laboratory reagent — for diverse analytical applications
Industries we supply this to
Why buy this from Sparks
- Non-fuming nature enhances safety during handling
- High purity supports diverse industrial applications
- Suitable for metal treatment, ensuring effective descaling
- Versatile precursor for fertilizer and explosives production
- Stable density facilitates standard process integration
- Available in large scale packaging for industrial use
Quality assurance
- Batches are checked against the specification values listed above before dispatch.
State what your process, auditor or customs clearance requires when you request a quotation, and it is confirmed with the quote.
Safety, handling & storage
Always consult the full Safety Data Sheet before handling. Personnel must use appropriate PPE and follow local regulations for storage, transport and disposal.
Frequently asked questions
What is the CAS number of Nitric Acid 68%?
The CAS registry number for Nitric Acid 68% is 7697-37-2. Its chemical formula is HNO3, with a molecular weight of 63.01 g/mol. Quote this number when requesting a quotation or checking documentation, as it identifies the substance unambiguously regardless of the trade name used.
What are the other names for Nitric Acid 68%?
Nitric Acid 68% is also referred to as Nitric acid and Aqua fortis. These names describe the same substance, so a specification or enquiry written against any of them can be matched to this product.
What grade of Nitric Acid 68% is supplied?
Nitric Acid 68% is supplied as Technical grade. State the grade your process requires when requesting a quotation — where an alternative grade can be sourced, it is confirmed at quotation stage rather than assumed.
What concentration is Nitric Acid 68% supplied at?
Nitric Acid 68% is supplied at a concentration of 68%. Concentration and assay are separate figures: the concentration describes the strength of the material as supplied, and the certificate of analysis issued for your consignment carries the measured values for that batch.
What does Nitric Acid 68% look like?
Nitric Acid 68% is described as clear to pale yellow liquid. Appearance is a useful first check on receipt of goods, though it does not replace the certificate of analysis for confirming that the material meets specification.
What is Nitric Acid 68% used for?
Common applications include metal pickling — removes scale and regenerates chromium-oxide layers, fertilizer production — precursor to ammonium nitrate, explosives manufacturing — nitration in mixed acid systems, pH adjustment and chemical synthesis — control and feedstock, etching and engraving — precision surface treatment and jewelry cleaning — removes tarnish and impurities. The suitability of the product for a particular process depends on the grade and specification required, which is worth confirming against your own process conditions.
Which industries use Nitric Acid 68%?
Nitric Acid 68% is supplied to the Water Treatment, Food Processing & Beverage, Agriculture & Agrochemicals, Mining & Minerals, Construction & Admixtures, Pharmaceuticals & Healthcare, Cosmetics & Personal Care, Cleaning & Detergents, Paints, Coatings & Inks, Textile & Leather Tanning, Oil, Gas & Energy and Laboratories & Research sectors. These are the industries this product is listed against in our catalogue; if your application falls outside them, we can advise on suitability before you order.
What packaging is Nitric Acid 68% available in?
Available in 15 kg containers. Where a different pack size or bulk delivery is required, it is confirmed at quotation stage against availability rather than listed here as standard.
What is the HS code for Nitric Acid 68%?
Nitric Acid 68% is recorded against the EC number 231-714-2 and the HS customs code 2808.00.0090. Quote this on customs and export paperwork; it is confirmed again on the commercial invoice for your specific consignment.
References
Technical information on this page was compiled from the following published sources. Safety and handling data always comes from the supplier’s own safety data sheet.
- 1.Nitric Acid 68-70% (HNO₃) — Industrial Supplier | CHIMI ARTchimiart.com
- 2.Nitric Acid (HNO₃ ≥68%) Industrial Grade | YuXing Supplieryuxingchem.com
- 3.Nitric Acid - an overview | ScienceDirect Topicssciencedirect.com
- 4.Industrial Nitric Acid Grades: HNO3 Types, Concentrations & Applications Guide | nitrico.com Blognitrico.com
- 5.My nitric acid will be of the purest of hearts!reddit.com
- 6.68% nitric acid capabilityreddit.com
- 7.Nitric acidreddit.com
- 8.Nitric Acid 68% in Kenya - Sanvil Industries Ltdsanvilindustries.com
- 9.Nitric Acid in Kenya | Industrial & Laboratory Grade| Finstar - Finstar Industrial Chemicalsfinstarindustrialchemicals.co.ke
- 10.Kenya Nitric acid; sulphonitric acids imports by country | 2024 | Datawits.worldbank.org
- 11.Kenya imports virtually all of its agricultural chemicals as there is no significant local production. Unlike many sub-Saharan African countries, Kenya’s fertilizer use has almost doubled since the liberalization of the market in the 1990s, and the removal of government price controls and import licpublic-inspection.federalregister.gov
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