Sodium cyanide

Sigma-Aldrich Inc

Revision date : 2025-11-06

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GHS06 GHS08 GHS05 GHS09
Health risk rating 4
Safety risk rating 5
Environmental risk rating 5

General Information

Version

6.16

Revision date

2025-11-06

Product name

Sodium cyanide

CAS No.

143-33-9

1.2.1 Relevant identified uses

Laboratory chemicals, Synthesis of substances

1.2.2. Uses advised against

The product is being supplied under the TSCA R&D Exemption

Emergency telephone

800-424-9300, +1-703- 527-3887

Icons in SDS

GHS05 GHS06 GHS08 GHS09 M004 M009 M010 M011 M017

Company Information

company name

Sigma-Aldrich Inc

GHS Information

Signal word

Danger

Hazard Codes

Hazard statements (CLP)

H290, H300+H310+H330, H372, H410

Hazard statements

Code

Statements

H290

May be corrosive to metals

Section 2

SECTION 2: Hazards identification

Long term hazards

Category 1 aquatic hazard

2.3 Other hazards

Contact with acids liberates very toxic gas.

Signal word

Danger

Hazard statements

H290 May be corrosive to metals. H300 + H310 + H330 Fatal if swallowed, in contact with skin or if inhaled. H372 Causes damage to organs (Thyroid) through prolonged or repeated exposure. H410 Very toxic to aquatic life with long lasting effects.

Prevention

P234 Keep only in original container. P260 Do not breathe dust. P262 Do not get in eyes, on skin, or on clothing. P264 Wash skin thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P271 Use only outdoors or in a well-ventilated area. P273 Avoid release to the environment. P280 Wear protective gloves/ protective clothing. P284 Wear respiratory protection.

Response

P301 + P310 + P330 IF SWALLOWED: Immediately call a POISON CENTER/ doctor. Rinse mouth. P302 + P350 + P310 IF ON SKIN: Gently wash with plenty of soap and water. Immediately call a POISON CENTER or doctor/ physician. P304 + P340 + P310 IF INHALED: Remove person to fresh air and keep comfortable for breathing. Immediately call a POISON CENTER/ doctor. P314 Get medical advice/ attention if you feel unwell. P362 Take off contaminated clothing and wash before reuse. P390 Absorb spillage to prevent material damage. P391 Collect spillage.

Storage

P403 + P233 Store in a well-ventilated place. Keep container tightly closed. P405 Store locked up. P406 Store in corrosive resistant container with a resistant inner liner.

Disposal

P501 Dispose of contents/ container to an approved waste disposal plant.

2.1 Classification of the substance or mixture

(29 CFR 1910.1200) Hazards for the product as supplied Corrosive to metals : Category 1 Acute toxicity (Oral) : Category 1 Acute toxicity : Category 1 (Inhalation) Acute toxicity (Dermal) : Category 1 Specific target organ : Category 1 (Thyroid) toxicity - repeated exposure Short-term (acute) : Category 1 aquatic hazard Long-term (chronic) : Category 1 aquatic hazard Other hazards Contact with acids liberates very toxic gas.

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