Ingredient Dictionary

POTASSIUM CYANATE

Potassium cyanate is a cyanate salt and a one-carbon compound.

Definition

Potassium cyanate is a cyanate salt and a one-carbon compound. It has a role as a herbicide.

Source: PubChem

US FDA substance register · UNII G9C31TWN5M · registered name POTASSIUM CYANATE · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Cosmetic roles

Keeps skin in good condition (CosIng catch-all)SKIN CONDITIONINGSoftens hairHAIR CONDITIONINGMakes skin soft and smoothSKIN CONDITIONING - EMOLLIENT

Safety & regulatory references

Not classified under Korea’s toxic-substance GHS list · existing chemical substance

Source: Korea toxic substances GHS register (NIER)

More data — names, identifiers, properties, test records, literature

Names & identifiers

POTASSIUM CYANATEINCI포타슘시아네이트Korean label name (MFDS standard)Cyanic acid, potassium saltSynonym

CAS No.chemical registry number: 590-28-3
EC No.EU chemical inventory number: 209-676-3
EC No.EU chemical inventory number: 209-677-9
DTXSIDUS EPA chemical ID: DTXSID2047692
DTXCIDUS EPA compound ID: DTXCID0027692

IUPAC: Potassium cyanate
Molecular formula: CKNO
Molecular weight: 81.115 g/mol

Measured properties

Appearance: Large Crystals · Colorless or white solid, [HSDB] White crystalline solid, [MSDSonline]
Melting point: 315 °C
Solubility: Very slightly sol in alcohol · In water, 6.3X10+5 mg/L @ 10 °C
Density: 2.056
Stability: ... /Unstable/ in presence of moisture ... · Slowly hydrolyzed to ammonia and potassium bicarbonate.
pH: 72 g/100 ml water @ 70 °C gives soln of pH above 9.2
Colour: white, colourless
Water solubility: 750 (IUCLID)
Molecular weight: 81.12 (est.)

Values measured on the substance itself. The KOSHA data are a reference for writing and reviewing safety data sheets, not a specification for a commercial raw material.

Source: PubChem · KOSHA safety data sheets (Korea)

What products actually use it for

What the 6 products reported to the US EPA with this ingredient use it for. Products outside cosmetics are included, so the top few rows are its main uses.

Softener and conditioner3
Surface modifier2
Plating agent1

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

5 skin studies and 3 eye studies are on record.

Classed as low4

The study conclusions largely agree (100%). These tests are on the raw material itself; irritation at the amount in a finished product is a different question.

See all 8 studies

Not likely to be sensitizing
skin sensitisation: in vivo (LLNA) · Screening · according to EU Method B.42 (Skin Sensitisation: Local Lymph Node Assay) 440/2008/EC according to OECD Guideline 429 (Skin Sensitisation: Local Lymph Node Assay) 24th April 2002
Not likely to be sensitizing
skin sensitisation: in vivo (non-LLNA) · Screening · according to OECD Guideline 406 (Skin Sensitisation) 1992 according to EU Method B.6 (Skin Sensitisation) 92/32/EEC
Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) 1984 according to
Classification not possible
Skin Sensitization · Screening
Not classified
Skin Irritation · Screening
Severe Irritation
eye irritation: in vivo · Screening · OECD Guideline 405 (Acute Eye Irritation / Corrosion) 1981 according to EU Method B.5 (Acute Toxicity: Eye Irritation / Corrosion) 84/449/EEC according to
Severe Irritation
eye irritation: in vitro / ex vivo · Screening · other guideline: ICCVAM HET-CAM Test equivalent or similar to
Category 2A
Eye Irritation · Screening