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Sodium Nitrate - Colorless transparent or white fine crystals or powder - CAS 7631-99-4 - Image 1
Nitrates

Sodium Nitrate

CAS Number

7631-99-4

Molecular Formula

NaNO₃

HS Code

3102500000

EINECS Number

231-554-3

UN Number

1498

Hazard Class

5.1

Appearance

Colorless transparent or white fine crystals or powder

Properties

Colorless transparent or white fine crystals or powder, relative molecular mass 84.99, specific gravity: 2.257, melting point 306°C, decomposes at 380°C. Odorless, cooling and salty taste. Soluble in water and liquid ammonia, slightly soluble in glycerol and ethanol. Strong oxidizer.

High-purity sodium nitrate powder (NaNO₃), white or colorless fine crystalline powder with excellent solubility. Widely used in glass manufacturing, chemical synthesis, and food industry.
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Specifications

Purity: ≥99.3%
Appearance: White fine powder/crystals
Packaging: 25kg/50kg bags

Applications

• Glass manufacturing - Clarifying agent
• Chemical synthesis - Raw material
• Food industry - Preservative

Quality Standards

Item Best Quality First Quality Qualified
Sodium Nitrate Content (dry basis), %, ≥ 99.5 99.3 98.5
Moisture, %, ≤ 1.0 1.5 2.0
Water Insoluble Matter (dry basis), %, ≤ 0.03 0.06 --
Chloride (as NaCl) (dry basis), %, ≤ 0.30 0.40 --
Sodium Nitrite (dry basis), %, ≤ 0.02 0.02 0.15
Carbonate (dry basis), %, ≤ 0.10 0.10 --
Iron (Fe), %, ≤ 0.005 -- --

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