Is Sodium selenate safe for babies and kids?
Moderate risk for kidsInfants are more vulnerable to Sodium selenate than children or adults due to immature hepatic/renal clearance, higher intake-to-body-weight ratio, rapid organ development, and increased gastrointestinal absorption.
What is sodium selenate?
The IUPAC name is disodium;selenate.
Also known as: disodium;selenate, Disodium selenate, Natriumseleniat, Selenic acid, disodium salt.
- IUPAC name
- disodium;selenate
- CAS number
- 13410-01-0
- Molecular formula
- Na2O4Se
- Molecular weight
- 188.95 g/mol
- SMILES
- [O-][Se](=O)(=O)[O-].[Na+].[Na+]
- PubChem CID
- 25960
Risk for babies
Moderate riskInfants are more vulnerable to Sodium selenate than children or adults due to immature hepatic/renal clearance, higher intake-to-body-weight ratio, rapid organ development, and increased gastrointestinal absorption.
Neonates and infants up to 12 months have incomplete blood-brain barrier development, immature Phase I/II metabolic enzymes (particularly CYP3A4, UGT1A1), and higher gastrointestinal permeability. Equivalent doses produce higher internal concentrations and longer residence times.
Risk for pregnant and nursing people
Elevated riskPregnancy alters the metabolism and distribution of Sodium selenate, potentially increasing fetal exposure. The developing embryo/fetus is vulnerable during organogenesis (weeks 3-8) and neurological development. Placental transfer should be assumed.
Suspected reproductive toxicant (GHS H361) or suspected endocrine disruptor. Precautionary approach warranted. Animal studies or limited human data suggest developmental toxicity potential.
Regulatory consensus
3 regulatory and scientific bodies have classified Sodium selenate. The classifications differ — that's the data.
| Agency | Year | Classification | Notes |
|---|---|---|---|
| IARC | 1973 | Not evaluated by IARC for carcinogenicity as a specific compound — selenium and selenium compounds have a complex carcinogenicity history: selenium was initially considered anti-carcinogenic (inverse epidemiological associations with cancer incidence), but the SELECT trial (2001–2008) found selenium supplementation (selenomethionine 200 μg/day) did not reduce prostate cancer and may have increased prostate cancer in men with high baseline selenium levels; IARC Vol 9 (1973) classified selenium and selenium compounds as Group 3; sodium selenate as a specific inorganic selenium compound has not been separately evaluated; primary regulatory concern is the extremely narrow margin between nutritional requirement and toxicity (therapeutic index ~10x) | |
| EPA CTX / Genetox | — | Genotoxicity: positive (Ames: positive, 5 positive / 1 negative reports) | |
| EPA CTX / Genetox | — | Genotoxicity: positive (Ames: positive, 5 positive / 1 negative reports) |
Regulators apply different standards of evidence — animal-data weighting, exposure-pattern assumptions, epidemiological power thresholds — which is why two scientific bodies can review the same data and reach different conclusions. The disagreement is the data.
Where kids encounter sodium selenate
- Industrial Facilities — Manufacturing plants, Chemical storage areas, Waste treatment sites
- Occupational Environments — Factories, Warehouses, Transportation vehicles
Safer alternatives
Lower-risk approaches that achieve a similar outcome to Sodium selenate:
-
Safer process chemistry; Green chemistry alternatives; Exposure controls
Trade-offs: Requires R&D investment to redesign synthesis routes; may reduce yield or throughput initially; long-term benefits include reduced waste treatment costs, regulatory compliance, and worker safety; 12 Principles of Green Chemistry framework available.Relative cost: 1.2-2×
Frequently asked questions
Is sodium selenate safe for kids?
Infants are more vulnerable to Sodium selenate than children or adults due to immature hepatic/renal clearance, higher intake-to-body-weight ratio, rapid organ development, and increased gastrointestinal absorption.
What products contain sodium selenate?
Sodium selenate appears in: Manufacturing plants (Industrial facilities); Chemical storage areas (Industrial facilities); Factories (Occupational environments); Warehouses (Occupational environments).
What should I do if my child is exposed to sodium selenate?
Minimize infant exposure through source control. For breastfeeding mothers: reduce maternal exposure. For formula-fed infants: use certified low-migration bottles and verified water sources. Consult pediatrician regarding any concerns.
Why do regulators disagree about sodium selenate?
Sodium selenate has been classified by 3 agencies including IARC, EPA CTX / Genetox, EPA CTX / Genetox, with differing conclusions. Regulators apply different standards of evidence (animal data weighting, exposure-pattern assumptions, epidemiological power thresholds), which is why two scientific bodies can review the same data and reach different conclusions. See the regulatory consensus table on this page for the full picture.
See Sodium selenate in the baby app
Look up products containing sodium selenate, compare to alternatives, and explore the full data record.
Open in baby View raw API dataSources (1)
- IARC Group 3 Selenium Compounds Vol 9 1973; SELECT Trial Selenomethionine Prostate Cancer Negative JAMA 2009; Selenoproteome 25 Proteins GPx TrxR DIO Selenoprotein P; Keshan Disease Cardiomyopathy Selenium Deficiency China; Kashin-Beck Osteoarthropathy; RDA 55 μg/day UL 400 μg/day Narrow Therapeutic Window; Selenosis Garlic Breath Alopecia Neuropathy; Kesterson Reservoir Selenium Bioaccumulation Waterbird Teratogenesis 1985; EPA Selenium Tissue-Based Criteria 15.1 mg/kg Ovary Egg; SECIS UGA Selenocysteine 21st Amino Acid (1973) — regulatory
Reference data, not professional advice. Aggregates publicly available regulatory and scientific data; not a substitute for veterinary, medical, legal, or regulatory advice. Why we built ALETHEIA →