Product Introduction
Calcium Ascorbate DC97 is a free‑flow direct‑compressible granular raw material manufactured by neutralizing L‑ascorbic acid with calcium carbonate under tightly controlled pH conditions, precise temperature management and standardized crystallization workflows. This USP‑compliant granular ingredient delivers minimum 97% calcium ascorbate content on dry basis, CAS registry No.5743‑28‑2, molecular formula C₁₂H₁₈CaO₁₄.
Unlike conventional acidic L‑ascorbic acid, this buffered mineral ascorbate dissociates into bio‑available ascorbate anions and calcium ions once dissolved in water or human gastrointestinal tract. It brings dual nutritional inputs of vitamin C and calcium without triggering gastric burning or mucosal irritation, making it a preferred raw material for supplement formulas targeting consumers with sensitive digestive tracts.
Powerful antioxidant properties enable the ascorbate moiety to neutralize reactive oxygen species and free radicals, defending lipids, cellular proteins and DNA from oxidative degradation. It also serves as a vital co‑factor supporting natural collagen biosynthesis. Meanwhile, embedded calcium component contributes to bone mineralisation and normal cellular signal transduction.
Our DC9‑grade granulation is engineered with particle distribution locked within 40‑100 mesh range. Optimised bulk density and low repose angle greatly boost throughput for high‑speed tableting machines, eliminating extra wet‑granulation processing steps and cutting production waste for nutraceutical and food manufacturers. This raw material meets global compliance benchmarks: USP monograph, FCC food‑chemical codex, EFSA E302 food additive standard and US FDA GRAS notification. It finds broad utilisation as antioxidant preservative and nutrition enhancer across food processing, dietary supplement manufacturing and cosmetic formulation sectors.
Technical Specification
| Item | Standard Value | Test Method |
|---|---|---|
| Appearance | White to yellowish granular powder | Visual |
| Assay (on dry basis) | 97.0%–101.0% | USP/FCC |
| Loss on Drying | ≤1.0% | Gravimetry |
| pH (1% aqueous solution) | 6.0–8.0 | pH meter |
| Heavy Metals (as Pb) | ≤10 mg/kg | ICP‑MS |
| Arsenic (As) | ≤2 mg/kg | ICP‑MS |
| Particle Size | 95% between 40–100 mesh | Sieve analysis |
| Bulk Density | 0.55–0.75 g/cm³ | USP <616> |
| Tapped Density | 0.70–0.90 g/cm³ | USP <616> |
| Angle of Repose | ≤35° | Flow test |
OEM Service
We deliver custom‑oriented one‑stop OEM & private‑label solutions for Calcium Ascorbate DC97 granular powder:
- Flexible packing options: 1kg aluminium foil small‑bag packaging, 25‑kg fibre‑drums bulk packing.
- Custom particle‑size adjustment: tune granular mesh range to match unique tablet‑press or formulation requirements.
- Private‑label service: support custom outer‑bag / drum labelling with your brand logo and product information.
- Batch‑tailored documentation: customised COA, allergen‑free statement, non‑GMO declaration for your project.
- Sample service: small trial‑order samples available for pre‑production formulation validation.
Applications
-
Food Manufacturing Segment
Antioxidant & Anti‑browning Food Preservative Classified as INS E302 food additive, this calcium ascorbate DC97 works to suppress oxidation and enzymatic browning reactions within canned beverages, fruit juices, fruit jam and preserved fruits. Producers shall follow local food‑regulation dosage limits to extend shelf‑life of finished food goods.
Dual‑source Nutrition Fortifier Fortify dairy goods, baked bakery items and functional ready‑to‑drink beverages to add both vitamin C and calcium nutrition notes. Important note: this material cannot be applied into infant formula products unless official regulatory clearance is secured.
-
Nutraceutical & Pharmaceutical Raw Material
Raw Input for Oral Dietary Supplement Optimised direct‑compression granular feedstock for vitamin‑calcium tablets, capsule fillings and bulk supplement powder blends. Suitable for adult end‑users as well as children aged above three under proper dosage guidance.
Solid‑form Antioxidant Excipient Functions as stabilising antioxidant excipient for oral solid pharmaceutical preparations. Not recommended for injection‑grade pharmaceutical production workflows.
-
Cosmetic & Personal‑care Formulation
Acts as natural antioxidant agent for skincare, hair‑care and body‑care cosmetic recipes. It also delivers mild pH‑buffering performance for cosmetic systems, supporting skin brightening effects by offsetting free‑radical‑triggered skin damage.
Why Choose Us
- Consistent DC‑grade Granulation Performance
Our proprietary in‑house granulation craft delivers stable particle‑size distribution, outstanding powder flow and compressibility. The granular material fits high‑speed tablet presses perfectly, lowering production downtime for tablet‑making factories.
- Rigorous End‑to‑end Quality Management
Full traceability runs from incoming raw‑material inspection to finished‑goods shipment. Heavy‑metal, arsenic and microbial indicators surpass USP and FCC international threshold values. Batch‑specific COA and heavy‑metal test reports are supplied upon request.
Comprehensive Global Regulatory Documentation
Complete regulatory dossiers support USP, FCC, EU EFSA and US FDA market registration work. Ready‑made documents help customers pass factory audits and clear customs across worldwide markets.
- Flexible Bulk‑order Logistics Support
Large‑scale standardized production base plus mature international freight networks guarantee punctual shipment towards North America, EU nations, Southeast Asia, Australia and Middle‑east markets.
Delivery and Shipping Service
Storage: Store in a dry, cool, and well-ventilated place.
Packaging: 1 kg/bag, 25 kg/drum
Delivery Time: 7 days after order placement
1.Express Delivery
3-5 days for shipments under 100 kg
Door-to-door service
2.Ocean Freight
Over 300 kg: Approximately 30 days. Port-to-port service requires a professional customs clearance agent.
3.Air Freight
100kg-1000kg, 5-7 days
Airport-to-airport service, requires a professional customs clearance agent
Frequently Asked Questions
Q1: What exactly does DC97 denote for Calcium Ascorbate DC97?
A: DC stands for Direct‑Compression grade, which means the granular powder can be tablet‑pressed without extra wet‑granulation processing. Number 97 refers to the minimum 97 % assay content calculated under dry‑basis testing conditions. This specialty granular grade is purpose‑built for tablet‑manufacturing workflows.
Q2: Is Calcium Ascorbate DC97 well‑suited for supplement formulas targeting sensitive‑stomach consumers?
A: Yes. It represents buffered, non‑acidic vitamin‑C source. It will not lower gastric‑fluid pH value, effectively avoiding heartburn and gastric discomfort often triggered by pure L‑ascorbic acid. It ranks among top ingredient picks for gentle‑stomach VC‑calcium supplement development.
Q3: What is shelf‑life and proper preservation condition for DC97 calcium ascorbate granules?
A: Shelf‑life reaches 24 months under sealed original‑package storage. Store inside dry, cool, well‑ventilated warehouse space; avoid direct sunlight exposure and sustained high‑temperature surroundings.
Q4: Can DC97 calcium ascorbate be adopted for vegan, Halal and Kosher‑certified finished goods?
A: Absolutely. Our material holds Kosher, Halal formal certification status. It also carries Non‑GMO, Vegan, Gluten‑free and Dairy‑free qualification. Zero animal‑derived raw materials are adopted during whole production, fully compliant for vegan‑line and religious‑compliant finished‑product manufacturing.
Q5: Which shipping alternatives and delivery timeline can you provide for bulk ingredient orders?
A: Multiple international shipping modes are supported: DHL/UPS/FedEx/TNT express courier, air freight and sea ocean freight. Orders below 100 kg: 3‑5 days door‑to‑door express delivery. Air‑freight for 100‑1000 kg cargo: 5‑7 days airport‑to‑airport transit. Ocean freight for bulk cargo over 300 kg: 15‑35 days port‑to‑port transport. Standard order lead‑time is 7 working‑days after deposit confirmation.
Q6: What safety hazards should production operators watch out for during material handling?
A: The raw material carries low‑hazard risk for normal industrial application. Avoid breathing in fine dust particles during operation. When skin contact occurs, rinse skin thoroughly with clean tap‑water. Once granules get into eyes, flush eyes with running water continuously for at least 15 minutes. Full safety guidance can be found within MSDS document.
Q7: Is calcium ascorbate DC97 interchangeable with ordinary calcium ascorbate powder for tablet‑pressing?
A: Not fully interchangeable. Conventional calcium‑ascorbate fine powder has poor flowability. You need extra wet‑granulation step before tableting. DC97 granular variant already completed granulation treatment, which can directly feed into tablet‑press equipment and greatly optimise manufacturing efficiency.
Q8: Can I get free test samples for formulation R&D test? What is sample‑shipping rule?
A: We support lab‑scale sample provision for customer R&D validation. Sample freight cost shall be covered by buyer side generally. You can submit sample inquiry to get quotation and sample‑arrangement information.
Send inquiry or contact us to get free sample, and learn more details about it.
Hot Tags: Calcium Ascorbate DC97 Direct‑Compression Granular Powder, China Calcium Ascorbate DC97 Direct‑Compression Granular Powder manufacturers, suppliers, factory, vitamin b9, affordable vitamins, custom vitamins, sports vitamins, vitamin compliance, discount vitamins
