What is this ingredient?

미국 FDA 물질 등록 · UNII HIW548RQ3W · 등록명 Sodium selenite · 단일 화학물질

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Ingredient Dictionary

DISODIUM SELENITE

Disodium selenite is an inorganic sodium salt composed of sodium and selenite ions in a 2:1 ratio.

Definition

US FDA substance register · UNII HIW548RQ3W · registered name Sodium selenite · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Disodium selenite is an inorganic sodium salt composed of sodium and selenite ions in a 2:1 ratio. It has a role as a nutraceutical. It is an inorganic sodium salt and a selenite salt.

Source: PubChem

Disodium Selenite is the inorganic compound

Cosmetic roles

No declared roleNOT REPORTED

Safety & regulatory references

Banned: Argentina · ASEAN · Brazil · Canada · China · European Union · Japan · South Korea · Taiwan

Source: MFDS (Korea) cosmetic regulatory information

Korea’s toxic-substance GHS classification: Danger · H331 (category 3) · H301 (category 3) · H410 (category 1) · +2 more

Source: Korea toxic substances GHS register (NIER)

Restriction II/297

Source: EU CosIng ingredient list

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

Names & identifiers

DISODIUM SELENITEINCI다이소듐셀레나이트Korean label name (MFDS standard)Selenious acid (H2SeO3), disodium saltSynonym

CAS No.chemical registry number: 10102-18-8
EC No.EU chemical inventory number: 233-267-9
DTXSIDUS EPA chemical ID: DTXSID0032077
DTXCIDUS EPA compound ID: DTXCID8012077

IUPAC: Disodium selenite
Molecular formula: Na2O3Se
Molecular weight: 172.948 g/mol

Measured properties

Appearance: Sodium selenite appears as a white colored crystalline solid. Soluble in water and more dense than water. Contact may irritate skin, eyes and mucous membranes. Toxic by ingestion, inhalation and skin absorption. · Hygroscopic solid, [ICSC] White solid, [HSDB] Beige odorless crystalline powder, [MSDSonline]
Boiling point: Decomposes (NTP, 1992)
Melting point: 1310 °F (decomposes) (NTP, 1992) · 710 °C (decomposes)
Solubility: greater than or equal to 100 mg/mL at 70.7 °F (NTP, 1992) · Insoluble in alcohol
Density: 3.1 (NTP, 1992) - Denser than water, will sink · Specific gravity: 3.1 (Water = 1)
Stability: Stable in air
Colour: white
Melting/freezing point: 710 ℃
Vapour pressure: (&amp, lt, 0.001 mmHg)
Water solubility: 898 g/ℓ(25 °C)
Relative density: 3.1
Auto-ignition temperature: &amp, gt, 400 ℃
Molecular weight: 126.18

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 2 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.

Flavouring and nutrient1
No specific technical function1

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

7 skin studies and 2 eye studies are on record.

Classed as moderate1

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 9 studies

High Frequency of Sensitization
skin sensitisation: in vivo (LLNA) · Screening · according to OECD Guideline 429 (Skin Sensitisation: Local Lymph Node Assay) according to EU Method B.42 (Skin Sensitisation: Local Lymph Node Assay)
Skin Sens. 1
Skin Sensitization · Authoritative
Ambiguous
skin sensitisation: in vivo (LLNA) · Screening · according to OECD Guideline 429 (Skin Sensitisation: Local Lymph Node Assay) according to EU Method B.42 (Skin Sensitisation: Local Lymph Node Assay)
Category 2
Skin Irritation · Screening
Classification not possible
Skin Sensitization · Screening
Category 6.5B (Category 1)
Skin Sensitization · Read Across
Category 6.3B (Category 3)
Skin Irritation · Read Across
Category 2
Eye Irritation · Screening
Category 6.4A (Category 2A)
Eye Irritation · Read Across