Alkaline-Iodide Reagent, Winkler Formulation for Dissolved Oxygen (DO) Analysis

Ricca Chemical Company

Revision date : 2026-05-24

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GHS08 GHS05
Health risk rating 4
Safety risk rating 1
Environmental risk rating 1

Note: Ingredients listed on restricted chemical lists

EC/CAS

7732-18-5

Name of the chemical

Water, distilled, conductivity or of similar purity H2O

Concentration

55.98

EC/CAS

1310-73-2

Name of the chemical

sodium hydroxide

Concentration

33.95

EC/CAS

7681-11-0

Name of the chemical

potassium iodide

Concentration

10.07

General Information

Revision date

2026-05-24

Product name

Alkaline-Iodide Reagent, Winkler Formulation for Dissolved Oxygen (DO) Analysis

Emergency telephone

800-424-9300, 703-527-3887

Icons in SDS

GHS05 GHS08 M004 M009

Company Information

company name

Ricca Chemical Company

GHS Information

Signal word

Danger

Hazard Codes

Hazard statements (CLP)

H314, H318, H372

Hazard statements

Code

Statements

H314

Causes severe skin burns and eye damage

Section 2

SECTION 2: Hazards identification

Classification of the Substance or Mixture

Hazard categories

Category Hazard Precautionary Statements

Hazard statements

Skin Corrosion / Irritation Category 1 H314 P260,P264,P280,P301+P330+P331, P303+P361+P353,P363,P304+P340, P310,P321,P305+P351+P338,P405, P501 Serious Eye Damage / Eye Irritation Category 1 H318 P280,P305+P351+P338,P310 Specific Target Organ Toxicity - Repeated Exposure Category 1 H372 P260,P264,P270,P314,P501 NOTE: Hazard statements may be combined on labels to improve clarity and readability. Hazard Number Hazard Statement H314 Causes severe skin burns and eye damage H372 Causes damage to thyroid through prolonged or repeated exposure

Hazard pictograms

Danger Signal Word

Precautionary statements

NOTE: Precautionary statements may be combined or consolidated on labels to improve clarity and readability. P260 Do not breathe fumes or mist. P264 Wash hands, arms, and face thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P280 Wear protective gloves and eye protection. P301+P330+P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P303+P361+P353 IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water or shower. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P310 Immediately call a poison center or doctor. P314 Get medical advice or attention if you feel unwell. P363 Wash contaminated clothing before reuse. P405 Store locked up. P501 Dispose of contents/container to suitable waste stream in accordance with local, state, federal, and international regulations.

Prevention

Precautionary Number

Response

Precautionary Number

Storage

Precautionary Number

Disposal

Precautionary Number

2.3 Other hazards

No other hazards identified. 2.4. Ingredients of Unknown Acute Toxicity 34 percent of this mixture consists of ingredient(s) of unknown acute oral and dermal toxicity. 44 percent of this mixture consists of ingredient(s) of unknown acute inhalation toxicity.

2.1 Classification of the substance or mixture

Hazard Class Category Hazard

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