Product Identification

Product Name

Reinecke salt

Synonyms

Ammonium reineckate
Ammonium tetraisothiocyanatodiaminechromate(III)
Ammonium tetraisothiocyanatodiamminechromate(III)
Chromate(1-), diamminetetrakis(thiocyanato-kN)-, ammonium, (OC-6-11)-

CAS

13573-16-5

Formula

C4H10CrN7S4

Molecular Weight

336.43

EINECS

237-003-3

Merck

12,8298

Beilstein/Gmelin

NA

Physical and Chemical Properties

Appearance

Dark red powder.

Solubility in water

Slightly soluble

Melting Point

270

Usage

Precipitant for primary and secondary amines, proline, hydroxyproline, and certain amino acids.

First Aid Measures

Ingestion

If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.

Inhalation

Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.

Skin

Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Remove contaminated clothing and shoes.

Eyes

Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Handling and Storage

Storage

Keep container closed when not in use. Refrigerator (approx 4 C). Store protected from moisture. Store in a cool, dry area away from incompatible substances.

Handling

Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation. Keep from contact with moist air and steam.

Hazards Identification

Ingestion

May cause gastrointestinal irritation with nausea, vomiting and diarrhea. The toxicological properties of this substance have not been fully investigated. May be harmful if swallowed.

Inhalation

May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated. May be harmful if inhaled. May cause irritation of the mucous membranes.

Skin

May cause skin irritation. May be harmful if absorbed through the skin.

Eyes

May cause eye irritation.

Exposure Controls/Personal Protection

Personal Protection

Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.

Respirators

A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use.

Exposure limit(s)

NIOSH TWA: 0.5 mg/m3 as Cr.

Fire Fighting Measures

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. To extinguish fire use water spray, dry chemical, carbon dioxide, or appropriate foam.

Accidental Release Measures

Small spills/leaks

Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Provide ventilation.

Stability and Reactivity

Stability

Stable under normal temperatures and pressures. Decomposes when heated. May decompose on exposure to moist air or water.

Incompatibilities

Strong oxidizing agents, water, acids, heat.

Decomposition

Hydrogen cyanide, nitrogen oxides, carbon monoxide, oxides of sulfur, carbon dioxide.