Is Chromium(III) sulfate (tanning agent) safe for babies and kids?
Moderate risk for kidsInfants are more vulnerable to Chromium(III) sulfate (tanning agent) 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 chromium(iii) sulfate (tanning agent)?
The IUPAC name is bis(chromium(3+));trisulfate.
Also known as: bis(chromium(3+));trisulfate, CHROMIC SULFATE, Chromium(III) sulfate, Chromic sulphate.
- IUPAC name
- bis(chromium(3+));trisulfate
- CAS number
- 10101-53-8
- Molecular formula
- Cr2O12S3
- Molecular weight
- 392.2 g/mol
- SMILES
- [O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-].[Cr+3].[Cr+3]
- PubChem CID
- 24930
Risk for babies
Moderate riskInfants are more vulnerable to Chromium(III) sulfate (tanning agent) 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
Context-dependentPregnancy alters the metabolism and distribution of Chromium(III) sulfate (tanning agent), potentially increasing fetal exposure. The developing embryo/fetus is vulnerable during organogenesis (weeks 3-8) and neurological development. Placental transfer should be assumed.
No specific reproductive toxicity data identified, but pregnancy-specific safety data is limited for most chemicals. Precautionary minimization of exposure is recommended.
Regulatory consensus
3 regulatory and scientific bodies have classified Chromium(III) sulfate (tanning agent). The classifications differ — that's the data.
| Agency | Year | Classification | Notes |
|---|---|---|---|
| IARC | 2012 | Group 3 — not classifiable as to its carcinogenicity to humans (chromium(III) compounds — IARC Monographs Volume 49, 1990; Volume 100C, 2012; inadequate animal and human evidence for Cr(III); distinct from chromium(VI) compounds which are IARC Group 1; primary concern is Cr(III) to Cr(VI) oxidation in chrome-tanned leather causing contact dermatitis) | |
| EPA CTX / Genetox | — | Genotoxicity: negative (Ames: None, 0 positive / 2 negative reports) | |
| EPA CTX / Genetox | — | Genotoxicity: negative (Ames: None, 0 positive / 2 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 chromium(iii) sulfate (tanning agent)
- Contaminated Water — Mining site runoff, Industrial discharge areas, Drinking water from old infrastructure
- Soil Contamination — Industrial sites, Smelter areas, Battery recycling facilities
- Food Chain — Fish from contaminated waters, Shellfish from polluted areas, Crops grown in contaminated soil
Safer alternatives
Lower-risk approaches that achieve a similar outcome to Chromium(III) sulfate (tanning agent):
-
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: 2-5×
Frequently asked questions
Is chromium(iii) sulfate (tanning agent) safe for kids?
Infants are more vulnerable to Chromium(III) sulfate (tanning agent) 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 chromium(iii) sulfate (tanning agent)?
Chromium(III) sulfate (tanning agent) appears in: Mining site runoff (Contaminated water); Industrial discharge areas (Contaminated water); Industrial sites (Soil contamination); Smelter areas (Soil contamination); Fish from contaminated waters (Food chain).
What should I do if my child is exposed to chromium(iii) sulfate (tanning agent)?
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 chromium(iii) sulfate (tanning agent)?
Chromium(III) sulfate (tanning agent) 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 Chromium(III) sulfate (tanning agent) in the baby app
Look up products containing chromium(iii) sulfate (tanning agent), compare to alternatives, and explore the full data record.
Open in baby View raw API dataSources (1)
- IARC Monographs Volume 49 1990 Volume 100C 2012 Chromium(III) Compounds Group 3; Cr(VI) IARC Group 1 Distinction; Chrome Tanning 80% Global Leather Production; EU Regulation 301/2014 Cr(VI) 3 mg/kg Leather Limit; Chrome Allergy Type IV Dermatitis 3-4% Prevalence; Cr(III)-to-Cr(VI) Oxidation UV Alkaline Microbial; Tannery Wastewater Chromium Pollution; UK WEL 0.5 mg/m3 Cr(III); EU CLP Aquatic Chronic 3 (2012) — 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 →