---
title: "Chemical Storage Tank"
industry: "Chemical Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:CHEMICAL_STORAGE_TANK"
  data_integrity_hash: "f1eb158d8adadbb9de0f1e659b6ef8b3"
  source_authority: "https://cnfx.com"
  strict_mode: true
source_identity:
  provider: "CNFX Industrial Knowledge Graph"
  index_version: "2026.Q1-Universal"
  authority_id: "URN:CNFX:ME:CHEMICAL_STORAGE_TANK"
  data_source_uri: "https://cnfx.com/llms/industry/chemical-manufacturing/product/chemical-storage-tank.md"
  official_resource_url: "https://cnfx.com/industry/chemical-manufacturing/product/chemical-storage-tank"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0-2.5 bar gauge pressure, -10°C to 40°C ambient temperature, 0-95% relative humidity"
    unit: "L"
engineering_limits:
  max_safe_operating_point:
    value: 250
    unit: "MPa"
    consequence: "Stress corrosion cracking due to chloride ion concentration exceeding 25 ppm at temperatures above 60°C, following NACE MR0175/ISO 15156 standards for sulfide stress cracking"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Chloride concentration exceeding 25 ppm in stored chemical at temperatures above 60°C"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Implement duplex stainless steel (UNS S31803) construction with maximum 0.03% carbon content and post-weld heat treatment at 1050°C followed by rapid quenching"
  - node_2:
      trigger: "Thermal cycling between -10°C and 40°C at frequency exceeding 5 cycles per hour"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Design with integral reinforcement pads (ASME BPVC Section VIII Div.1 Appendix 2) and maintain minimum radius of 50 mm at all discontinuities"
bom_nodes:
  tank-body-shell:
    type: "component"
    urn: "URN:CNFX:ME:TANK_BODY_SHELL"
    interface_type: "physical-logic-coupled"
  lid-manway:
    type: "component"
    urn: "URN:CNFX:ME:LID_MANWAY"
    interface_type: "physical-logic-coupled"
  outlet-port-valve:
    type: "component"
    urn: "URN:CNFX:ME:OUTLET_PORT_VALVE"
    interface_type: "physical-logic-coupled"
  level-indicator:
    type: "part"
    urn: "URN:CNFX:ME:LEVEL_INDICATOR"
    interface_type: "physical-logic-coupled"
  agitator-optional:
    type: "part"
    urn: "URN:CNFX:ME:AGITATOR_OPTIONAL"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
url: "https://cnfx.com/llms/industry/chemical-manufacturing/product/chemical-storage-tank.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "d804c43419da7cb188a301cd7258625676e838981f6d2f2b183cd239ff701d07"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Chemical Storage Tank

## 1. Technical Definition
A container designed for the safe storage of chemicals within a dosing system.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0-2.5 bar gauge pressure, -10°C to 40°C ambient temperature, 0-95% relative humidity**. Failure boundary: **Material yield strength at 0.2% offset: 250 MPa for 316L stainless steel, burst pressure: 6.25 bar (2.5x design pressure), brittle fracture temperature: -196°C for 316L**, Mechanism: **Stress corrosion cracking due to chloride ion concentration exceeding 25 ppm at temperatures above 60°C, following NACE MR0175/ISO 15156 standards for sulfide stress cracking**.

### 2.1 Analytical Physics Model
Governed by the **Hansen Solubility Distance (HSP)**:

> **Primary Equation**: $R_a = \sqrt{4\Delta\delta_d^2 + \Delta\delta_p^2 + \Delta\delta_h^2}$  
> **Engineering Impact**: Predicts seal/gasket swelling when exposed to CIP chemicals.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| \delta_d | Dispersive | Engineering Constant |
| \delta_p | Polar | Engineering Constant |
| \delta_h | Hydrogen | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Chloride concentration exceeding 25 ppm in stored chemical at temperatures above 60°C | 8 | Intergranular stress corrosion cracking initiating at weld heat-affected zones | Implement duplex stainless steel (UNS S31803) construction with maximum 0.03% carbon content and post-weld heat treatment at 1050°C followed by rapid quenching |
| Thermal cycling between -10°C and 40°C at frequency exceeding 5 cycles per hour | 8 | Low-cycle fatigue crack propagation from nozzle-to-shell junctions following Coffin-Manson relationship with exponent n=0.3 | Design with integral reinforcement pads (ASME BPVC Section VIII Div.1 Appendix 2) and maintain minimum radius of 50 mm at all discontinuities |

## 3. Key Technical Parameters
| Parameter | Value | Unit | Status |
| :--- | :--- | :--- | :--- |
| spec | Config-dependent | L | Verified |

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Level Indicator](https://cnfx.com/llms/industry/chemical-manufacturing/product/level-indicator.md) `(Standalone System)`
- [Agitator (optional)](https://cnfx.com/llms/industry/chemical-manufacturing/product/agitator-optional.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Chemical Dosing Pump**, **Level Monitoring System**, **Ventilation and Fume Extraction System**  
**Downstream Applications**: Industrial Cleaning Solutions, Water Treatment Chemicals, Agricultural Fertilizers  

## 5. Engineering Risks & FAQ
- **Caution**: 
- **Caution**: 
- **Caution**: 

### Q: What materials are best for corrosive chemical storage?
**A**: For corrosive chemicals, polyethylene (PE), polypropylene (PP), and stainless steel grades like 316L offer excellent resistance. FRP tanks are also suitable for many aggressive chemicals, depending on the specific chemical compatibility.

### Q: Can these tanks be customized with agitators?
**A**: Yes, agitators are available as an optional component in the BOM to ensure proper mixing and homogeneity of stored chemicals, preventing sedimentation or separation in the dosing system.

### Q: How do I choose between PE, PP, stainless steel, or FRP?
**A**: Selection depends on chemical compatibility, temperature, pressure requirements, and budget. PE and PP are cost-effective for many chemicals, stainless steel (304/316L) offers durability for high-purity applications, and FRP provides strength and corrosion resistance for large-scale storage.

## 6. Manufacturing Compliance

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Chemical Storage Tank](https://cnfx.com/industry/chemical-manufacturing/product/chemical-storage-tank)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **5** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: CHEMICAL_STORAGE_TANK | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 0ca58afe
