99.5% Purity Calcium Metaphosphate with 71.2% P2O5 and Low Iron
A calcium metaphosphate grade built for buyers who need a tight impurity profile and a predictable phosphorus assay rather than a generic phosphate filler.
CAS 123093-85-6
Purity 99.5%
P2O5 71.2%
Fe 2.9 ppm
Loss on Ignition 0.31%
SEO Title
99.5% Purity Calcium Metaphosphate 71.2% P2O5 Low Iron Supplier
Meta Description
Calcium Metaphosphate CAS 123093-85-6 at 99.5% purity with 71.2% P2O5, Fe 2.9 ppm and LOI 0.31% for fertilizer, biomedical ceramics and optical glass use.
Calcium Metaphosphate (CAS 123093-85-6) supplied by Changzhou Jiayuan Chemical Co., Ltd. is a high-purity phosphate material with a measured P2O5 content of 71.2% and a purity of 99.5%. Iron is held at 2.9 ppm, while cobalt, chromium, titanium, copper, manganese, nickel and vanadium each remain below 1 ppm. Loss on ignition is 0.31%, and strontium is present at 1126 ppm.
The same specification serves three buying groups: fertilizer blenders working with citrate-soluble phosphorus, developers of bioactive ceramics and glass for bone repair research, and optical glass producers using phosphate as a melting and network component. Because the impurity window is narrow, buyers can qualify one material and reuse the data across several processes.
Calcium Metaphosphate, product reference CaHO3P, purity 99.5% and P2O5 71.2%.
Key Features
99.5% Purity, 71.2% P2O5
A concentrated phosphorus assay means less material is needed per batch, and the narrow purity band supports repeatable dosing instead of batch-by-batch recalculation.
Iron at 2.9 ppm
Low iron helps protect colour and transmittance in glass melts and limits iron-driven discolouration in high-purity downstream products.
Trace Metals Below 1 ppm
Co, Cr, Ti, Cu, Mn, Ni and V are each controlled under 1 ppm, reducing the risk of side reactions and cutting the need for downstream purification steps.
LOI of 0.31%
Low weight loss on burning gives predictable behaviour during sintering and melting, which helps hold glass transmittance and ceramic glaze results within target.
Citrate-Soluble Phosphorus
Roots in acidic soil can take up the phosphorus continuously; the supplier reports a 20–30% lower application rate than ordinary phosphate fertilizers.
Biocompatible in Ceramic Use
Biocompatibility, biodegradability and osteoconductivity make the grade relevant to bioactive ceramics, glass and bone repair scaffold research.
Technical Specifications
Parameter
Value
Product
Calcium Metaphosphate
CAS Number
123093-85-6
Purity
99.5%
P2O5 Content
71.2%
Loss on Ignition (weight loss on burning)
0.31%
Iron (Fe)
2.9 ppm
Strontium (Sr)
1126 ppm
Cobalt (Co)
<1 ppm
Chromium (Cr)
<1 ppm
Titanium (Ti)
<1 ppm
Copper (Cu)
<1 ppm
Manganese (Mn)
<1 ppm
Nickel (Ni)
<1 ppm
Vanadium (V)
<1 ppm
Models and Options
This grade is defined by the assay and impurity values above rather than by a published model code. Buyers configure the order through packaging and delivery format:
Plastic woven bags for standard bulk handling
Aluminum foil bags for moisture-sensitive or small-lot use
Fiber drums for drum-based handling and transport
Other packaging solutions negotiable against customer requirements
Bulk orders support flexible packaging combinations and coordinated logistics, so mixed-format shipments can be arranged within one order.
Materials and Structure
The product is a calcium phosphate salt carrying the CAS designation 123093-85-6 and recorded under the reference CaHO3P. Its phosphorus is present as P2O5 at 71.2% of the material, which is where the concentrated fertilizer and melting behaviour come from. Strontium at 1126 ppm is the only trace element reported above the 1 ppm band; iron is the next highest at 2.9 ppm.
Because the trace metals are held below 1 ppm, the material behaves consistently in high-temperature sintering: the company reports controllable melting characteristics that help optimise glass transmittance and chemical stability. Storage in a ventilated, low-temperature, dry warehouse, kept separate from oxidants and food additives, protects that profile before use.
Applications
Phosphate Fertilizer
Suited to legumes, forage grass, grains, corn and sugar beet. Continuous root uptake in acidic soil and longer-lasting effect than equivalent ordinary phosphate fertilizers reduce topdressing frequency; efficiency improves when combined with nitrogen and organic fertilizers.
Biomedical Ceramics and Glass
Used in bioactive ceramics and glass for bone tissue development and repair, with application value in bone repair scaffold research.
Optical Glass and Industrial Materials
Raw material for high-melting-point optical glass in mobile phone lenses, vehicle monitoring lenses and digital camera lenses; also used in ceramic glazes, high-temperature adhesives, refractory materials and special glass sealing materials.
Customization
Packaging format selected per order, with additional solutions negotiable
Sample testing before commitment, so buyers can verify results in their own process
Support in analysing application data and turning it into usage recommendations
Logistics coordination for bulk orders
Regular follow-up on usage, with storage guidance matched to the buyer's warehouse conditions
Selection consultation runs from first enquiry through after-sales support, which is useful when one material is being qualified for more than one production line.
Frequently Asked Questions
What is the CAS number and standard assay?
CAS 123093-85-6, with a measured P2O5 content of 71.2% and a purity of 99.5%.
How low are the trace metal impurities?
Iron is 2.9 ppm. Cobalt, chromium, titanium, copper, manganese, nickel and vanadium are each below 1 ppm. Strontium is 1126 ppm.
What is the loss on ignition?
Weight loss on burning is 0.31%.
Which packaging can I order?
Plastic woven bags, aluminum foil bags and fiber drums are standard. Other packaging solutions can be discussed for bulk orders.
How should the material be stored?
In a ventilated, low-temperature, dry warehouse, separated from oxidants and food additives.
Can I test a sample before placing a bulk order?
Yes. Sample testing is supported, and the company assists with analysing your application data and providing usage recommendations.
Is it suitable for acidic soil fertilizer programmes?
Yes. The phosphorus is citrate-soluble and can be continuously absorbed by crop roots in acidic soil, and the supplier reports a 20–30% lower application rate than ordinary phosphate fertilizers.
Can it be used in optical glass production?
It is used as a raw material for high-melting-point optical glass, including lenses for mobile phones, vehicle monitoring and digital cameras, and also in ceramic glazes, high-temperature adhesives, refractories and glass sealing materials.
Image Filename and Alt Suggestions
calcium-metaphosphate-995-sample-front.png — Alt: Calcium Metaphosphate CaHO3P high purity product sample
✓ Verified Elite Supplier