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Moneide Chemicals
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Ferric Ammonium Oxalate | High-Purity Reagent for Cyanotype
- Time of issue:Oct . 24, 2025 18:15
(Summary description)Tangshan Moneide Trading Co., Ltd. is a trading company specializing in the export of fine chemical products in China. Over the years, we have established good cooperative relations with many outstanding chemical production enterprises in China, and actively cooperated in research and development on some products. Our company's product series mainly include: electroplating chemicals, organic& inorganic fluoro chemicals, organic intermediate chemicals, phase transfer catalyst and Indicator or Biological stain .
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- Time of issue:2019-12-30 10:55
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If you’ve ever mixed chemistry with photography or printmaking, you’ve probably run into Ferric Ammonium Oxalate at some point. Synonyms: ferric ammonium oxalate trihydrate; CAS 13268-42-3. It’s that green, slightly moody complex salt that turns sunlight into images and shop floors into precise etch patterns. The market has been steady, but to be honest, buyers are getting pickier: reproducibility, low heavy metals, and reliable documentation (REACH, RoHS, ISO) now decide who wins the PO. Three trends: (1) a mini-resurgence of cyanotype and alternative process labs (yes, still going strong); (2) semiconductor-adjacent shops standardizing light-sensitive pre-treatments; and (3) an audit-heavy supply chain where COAs, batch traceability, and ICP-OES heavy metal data are expected, not “nice to have.” Many customers say they’ll accept slightly higher prices if the lot-to-lot curve stays flat. Materials: oxalic acid, ferric salt (e.g., FeCl3 or Fe(NO3)3), ammonium source, deionized water. Method: controlled complexation at low pH, filtration, multi-stage washing, crystallization, and low-temperature vacuum drying to protect the hydrate. QC: assay by redox titration, Fe(II)/Fe(III) ratio by UV–Vis, heavy metals by ICP-OES, chloride/nitrate by IC, solution clarity. Testing standards: sampling per ASTM E300; labs often operate to ISO/IEC 17025. Service life: ≈24 months sealed, cool and dry; solutions stay stable ~1–2 weeks refrigerated, away from light. Industries: alternative photography, PCB/etching, lithography pre-treat, academic research, education kits. Options typically include particle size (fine vs. granular to reduce dust), hydration control, and packaging (1 kg amber bottles, 5 kg pails, 25 kg fiber drums with PE liners). Many buyers request tamper-evident seals and light-blocking liners—worth it if you store Ferric Ammonium Oxalate near windows (don’t). A university print studio shifted to tighter-spec Ferric Ammonium Oxalate and reported, informally, fewer “grainy” spots and a ~10–15% reduction in exposure variability. Another customer in PCB prototyping told me switching suppliers cut failures linked to heavy-metal contamination to near zero—small dataset, but encouraging.Ferric ammonium oxalate: what buyers really check before they buy
Why it matters in 2025
Typical product specifications
Appearance
Green crystals or granules
Assay (as complex, dried basis)
≥ 99.0% (titration vs. KMnO4, ≈ real-world methods may vary)
CAS No.
13268-42-3
Solubility
Freely soluble in water (≈100 g/L at 20 °C)
pH (5% aq.)
≈ 2.5–4.0
Moisture (LOD 105 °C)
18–22% (trihydrate indicative)
Fe(II) content
≤ 0.10%
Heavy metals (as Pb)
≤ 10 ppm (ICP-OES)
Process flow (how reputable vendors make it consistent)
Application snapshots
Vendor comparison (what buyers ask me for)
Vendor
Origin
Grades
Certs
Lead time
Notes
Moneide Chemical
2-7-523 Jidong Building Materials, Tangshan, Hebei 064000, China
AR, photographic
ISO 9001 (on request), REACH support
≈ 2–3 weeks ex-works
Strong batch documentation, responsive samples
EU Distributor (generic)
EU stock
Lab, photo
REACH, RoHS statements
1–7 days from stock
Higher price, fast delivery
US Specialty Supplier
US
Photo-grade kits
Safety docs, QC sheets
3–10 days
Great for small batches, education
Customization and packaging
Case notes from the field
Compliance checklist
Citations
Moneide Chemicals
