Natriumthiocyanat

Herbicides

Active substance -> EU Pesticides database: Not approved

greater than 1 at 68 °F (USCG, 1999)

1.7 g/cm³

572 °F (USCG, 1999)

~300 °C

287 °C

Sodium thiocyanate is an odorless white solid. Sinks and mixes with water. (USCG, 1999)

Sodium thiocyanate solution (56% or less) is an odorless clear to pale yellow liquid. (USCG, 1999)

CBI; Large Crystals; Dry Powder

Colorless or white deliquescent solid; [Merck Index] Colorless odorless solid; [Aldrich MSDS]

COLOURLESS HYGROSCOPIC CRYSTALS OR WHITE POWDER.

Danger

H302+H312+H332 (38.3%): Harmful if swallowed, in contact with skin or if inhaled [Warning Acute toxicity, oral; acute toxicity, dermal; acute toxicity, inhalation]

P261, P264, P264+P265, P270, P271, P273, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P305+P354+P338, P317, P321, P330, P337+P317, P362+P364, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 799 reports by companies from 25 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Warning

H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]

Chemical: Thiocyanic acid, sodium salt

Thiocyanic acid, sodium salt (1:1) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Thiocyanic acid, sodium salt (1:1) are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)

2002/2076

Status: Active Update: 15-03-2018 https://echa.europa.eu/registration-dossier/-/registered-dossier/14109

Sodium thiocyanate: Does not have an individual approval but may be used under an appropriate group standard

Special Hazards of Combustion Products: Irritating oxides of sulfur and nitrogen may form in fire. (USCG, 1999)

Special Hazards of Combustion Products: Irritating oxides of sulfur and nitrogen may form in fire. (USCG, 1999)

Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.

Inhalation of dust causes irritation of nose and throat. Ingestion of large doses causes vomiting, extreme cerebral excitement, convulsions, and death in 10-48 hrs.; chronic poisoning can cause flu-like symptoms, skin rashes, weakness, fatigue, vertigo, nausea, vomiting, diarrhea, confusion. Contact with eyes causes irritation. Prolonged contact with skin may produce various skin eruptions, dizziness, cramps, nausea, and mild to severe disturbance of the nervous system. (USCG, 1999)

Intensity of effects will vary with concentration of the solution. Inhalation of vapor causes irritation of nose and throat. Ingestion of large doses causes vomiting, extreme cerebral excitement, convulsions, and death in 10-48 hrs.; chronic poisoning can cause flu-like symptoms, skin rashes, weakness, fatigue, vertigo, nausea, vomiting, diarrhea, confusion. Contact with eyes causes irritation. Prolonged contact with skin may produce various skin eruptions, dizziness, cramps, nausea, and mild to severe disturbance of the nervous system. (USCG, 1999)

May cause convulsions; Prolonged or repeated exposure may cause CNS effects and hypothyroidism; [ICSC] Not irritating to skin or eye of rabbits; Causes sensitization in human and guinea pig studies; [IUCLID] Search for (540-72-7[EC/RN Number]) AND (allergic OR dermatitis OR sensitizer OR sensitization): no results; [PubMed] Dust is irritating to eyes, nose, and throat; Inhalation may cause systemic poisoning; Prolonged skin exposure may cause rash, dizziness, cramps, and slight to severe nervous system disturbances; [CHRIS] Oral LD50's (rat) range from 232 to 1,180 mg/kg; Causes convulsions in lethal-dose studies of rats, mice, and guinea pigs; [RTECS] May cause irritation; Targets CNS, cardiovascular system, and thyroid; Toxic by inhalation; Harmful by ingestion and skin absorption; [Aldrich MSDS] Cyanide is detoxified in the body when it is combined with sulfur to form thiocyanate. [Ford, p. 705] Thiocyanate can competitively inhibit the entry of iodide into the thyroid gland and cause hypothyroidism and goiters. [Goldfrank, p. 1680] See CYANIDES.

Salts, Basic

Salts, Basic

Nitric acid violently oxidized a thiocyanate solution [Bretherick 1979 p. 121]. Caution should be exercised in treating a thiocyanate with an oxidizing agent such as a peroxide or chlorate as such mixtures have been known to explode. Special Hazards of Combustion Products: Irritating oxides of sulfur and nitrogen may form in fire (USCG, 1999). Carbonyl sulfide is produced in a violent reaction by the mixture of sulfuric acid and sodium thiocyanate.

Nitric acid violently oxidized a thiocyanate solution [Bretherick 1979 p. 121]. Caution should be exercised in treating a thiocyanate with an oxidizing agent such as a peroxide or chlorate as such mixtures have been known to explode. Special Hazards of Combustion Products: Irritating oxides of sulfur and nitrogen may form in fire (USCG, 1999). Carbonyl sulfide is produced in a violent reaction by the mixture of sulfuric acid and sodium thiocyanate.

Water soluble.

No rapid reaction with air. No rapid reaction with water.

Acute Tox. 4 (100%)

Acute Tox. 4 (100%)

Acute toxicity - category 4

Acute toxicity (Oral) - Category 4

Fire Extinguishing Agents: Use extinguishing agents appropriate for the surrounding fire. (USCG, 1999)

In case of fire in the surroundings, use appropriate extinguishing media.

Fresh air, rest.

Remove contaminated clothes. Rinse and then wash skin with water and soap.

First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.

Rinse mouth. Give a slurry of activated charcoal in water to drink. Refer for medical attention .

INHALATION: move to fresh air; if exposure has been great, get medical attention.

Call for medical aid.

Cough. Further see Ingestion.

Nausea. Vomiting. Diarrhoea. Weakness. Confusion. Convulsions.

Food Additives -> PRESERVATIVE -> JECFA Functional Classes

Food Additives -> PRESERVATIVE -> JECFA Functional Classes

Food Additives -> PRESERVATIVE -> JECFA Functional Classes

Cosmetics -> Hair conditioning

CBI

Thiocyanic acid, sodium salt (1:1): ACTIVE