Industrial chemicals · Taylor, TX
Certificate of Analysis

Sample Certificate of Analysis

Sodium Bisulfite 25% ACS Grade

ACS · 25%

Certificate #
TYP-SODIUMBISULF
Lot Number
TYPICAL SAMPLE
Category
Inorganic Salts / Slurries (F)
CAS Number
7631-90-5
Formula
HNaO3S
Computed Assay
25.00%(100 − Σ impurities)

Sample COA. Lot-specific COAs ship with each order.

2D chemical structure of Sodium Bisulfite 25% ACS Grade
Structure · PubChem
Last reviewed 2026-07-22.

COA · Answer summary

Typical certificate of analysis for Sodium Bisulfite 25% ACS Grade. Lot-specific results ship with every order.

Assay (computed)
25.00%
Grade
ACS

Specifications

ParameterSpecificationTypical ResultTest Method
Assay24.5 – 25.5 %25 %Titration/Gravimetric
Heavy Metals (as Pb)≤ 10 ppm2 ppmICP-MS (as Pb)
Insolubles≤ 0.005 %—Filtration
Iron (Fe)≤ 20 ppm5 ppmICP-OES

Generated . Published by Alliance Chemical from first-party canonical product data. Our authority is hands-on chemical handling, DOT/GHS-compliant shipping, and government-registered distribution — not bench chemistry. Values are representative of typical production lots and reflect the published specification range. Lot-specific COAs are provided with every shipment.