№ files_lp_4_process_1_41507
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An educational source describing the properties and classifications of elements, compounds, and mixtures, including chemical symbols, formulas, and common methods for separating mixtures.
Year:
Not specified
Region:
Not specified
Subject:
Chemistry
Document Type:
Educational text
Intended Audience:
Students or learners of basic chemistry
Key Topics:
Elements, chemical compounds, mixtures, separation methods
Methods Described:
Chromatography, filtration, evaporation, simple distillation, fractional distillation, use of separating funnel
Examples Included:
Water, salt, sugar, air, urine, blood, milk, coca-cola, petroleum
Atomic Details:
Symbols and order of first 20 elements
Chemical Concepts:
Ionic and covalent compounds, solubility, physical separation of mixtures
Price: 8 / 10 USD
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The product description is provided for reference. Actual content and formatting may differ slightly.
Year:
2019
Region / city:
EU
Topic:
Mercury regulation
Document type:
Guidance document
Organization / institution:
Department for Business, Energy and Industrial Strategy (BEIS)
Author:
Unknown
Target audience:
Industry professionals, regulatory authorities
Period of validity:
Ongoing
Approval date:
May 2019
Amendment date:
May 2019
Year:
2025
Region / city:
Bangkok
Topic:
Ozone layer depletion, Refrigeration, Air-conditioning
Document type:
Information Note
Organization:
United Nations Environment Programme (UNEP)
Author:
UNEP Secretariat
Target audience:
Parties to the Montreal Protocol
Period of validity:
2025
Approval date:
16 June 2025
Date of updates:
July 2025
Note:
Context
Authors:
Yiqun Liu; Teresa Regueira; Erling H. Stenby; Wei Yan
Affiliation:
CERE, Department of Chemistry, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark
Corresponding author:
Wei Yan ([email protected]
Note:
)
Subject:
Phase equilibrium and density measurements of gas-oil mixtures under HPHT conditions
Gas components:
CH4, N2, CO2
Temperature range:
25–190 ℃
Pressure range:
400–1400 bar
Type of document:
Scientific research article
Field:
Thermodynamics; Reservoir fluid characterization; Chemical engineering
Experimental methods:
High pressure oscillating tube densimeter (Anton Paar DMA-512P); ST PVT 240/1500 full visibility cell
Models evaluated:
SRK; PR; PC-SAFT; volume translation approach
Data produced:
Over 270 density points; over 70 saturation pressure points
References cited:
Five scientific publications in Fluid Phase Equilibria, Journal of Chemical & Engineering Data, and Measurement Science and Technology
Year:
Not specified
Region / City:
Not specified
Subject:
Portland cement concrete composition and standards
Document Type:
Technical specification table
Organization / Institution:
Not specified
Author:
Not specified
Applicable Period:
Current standards as per TABLE 902 A
Date of Approval:
Not specified
Date of Changes:
Not specified
Material Types:
Coarse aggregate, cement, water
Strength Requirements:
Compressive strength in psi
Concrete Properties:
Slump range, total air content, concrete temperature, water/cement ratio
Year:
2026
Course:
OCR GCSE (9–1) Chemistry A
Topics:
C1 Particles; C2 Elements, Compounds and Mixtures
Type of Document:
End-of-topic quiz with teacher instructions
Intended Audience:
Teachers and students
Total Marks:
80
Question Types:
Multiple choice, short answer, long answer
Learning Outcomes:
Particle model, atomic structure, purity and separation of mixtures, bonding, material properties
Distribution Format:
Printed copy or Word file
Related Page Reference:
Page 18 (learner activity section)
Curriculum Code:
J248
Year:
2026
Region / Institution:
University of Sheffield, UK
Subject:
Polymer Chemistry, Materials Science
Document Type:
Supplementary Information
Department / Organization:
Department of Chemistry
Authors:
Nicholas J. W. Penfold, Jessica Whatley, Steven P. Armes
Intended Audience:
Researchers in polymer science and materials chemistry
Experimental Methods:
RAFT polymerization, synthesis of PETTC RAFT agent, preparation of PEG macromolecular chain transfer agents, nanoparticle formation
Materials:
PETTC, PEG45, PEG113, HPMA, VA-044, solvents and reagents specified in protocol
Characterization Techniques:
1H NMR, 13C NMR, MS, THF GPC, TEM
Preparation Period:
Laboratory experimental procedures described without explicit date range
Data Included:
Synthetic schemes, figures (S1–S5), table (S1)
Year:
2023
Region / City:
International
Topic:
Chemical safety
Document type:
Regulation table
Organization:
United Nations
Author:
UN Subcommittee of Experts on the GHS
Target audience:
Chemical manufacturers, transporters, and safety officers
Effective period:
2023–present
Date of publication:
2023
Chemical categories:
Self-heating substances 1 and 2, mixtures
Quantity limits:
Placard and manifest thresholds for transport
Storage requirements:
Location and maximum quantity per category
Year:
2023
Region / city:
Sabzevar, Iran
Topic:
Viscosity prediction, ionic liquids, machine learning
Document type:
Research article
Institution:
Petroleum and Petrochemical Engineering School, Hakim Sabzevari University
Author:
Amir Hossein Sheikhshoaei, Ali Sanati
Target audience:
Researchers, petroleum industry professionals, chemical engineers
Period of validity:
N/A
Approval date:
N/A
Date of last modification:
N/A
Contextual description:
A research article focusing on the prediction of viscosity for imidazolium-based ionic liquids and their mixtures using machine learning models, offering insights into theoretical models and statistical validation for industrial applications.
Year:
2024
Location:
Centre for Organic Agriculture Research and Training (COART), Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola, India
Research field:
Agronomy / Organic Agriculture
Document type:
Experimental study report
Authors:
COART research team
Methodology:
Factorial randomized block design, 12 treatment combinations, 3 replications
Materials tested:
Soybean straw, cotton stalk, wheat straw, pigeonpea straw, weed biomass, leaf litter, soil, cowdung slurry, PDKV, S9, and CIRCOT decomposing cultures
Measured parameters:
Compost temperature, microbial counts (bacterial, fungal, actinomycetes), compost yield, compost maturity
Keywords:
Crop residue mixtures, compost, decomposing culture, temperature, microbial analysis
Period of study:
Composting process until maturity (up to 126 DAF)
Note:
Grade
Subject:
Science
Document Type:
Educational Material
Target Audience:
Students (Grade 9)
Year:
2020
Region / City:
United States
Topic:
Environmental Monitoring, Air Quality
Document Type:
Standard Operating Procedure
Organization / Institution:
U.S. Environmental Protection Agency
Author:
U.S. Environmental Protection Agency
Target Audience:
Air quality monitoring personnel, laboratory technicians
Period of Application:
Ongoing
Approval Date:
January 2020
Date of Changes:
None
Year:
2024
Region / City:
New Zealand
Topic:
Agricultural Compounds, Regulatory Exemption, Research, Testing, Teaching/Training
Document Type:
Application Form
Organization / Institution:
Ministry for Primary Industries (MPI)
Author:
Ministry for Primary Industries
Target Audience:
Organizations using agricultural compounds for research, testing, and teaching/training
Effective Period:
Not specified
Approval Date:
Not specified
Amendment Date:
Not specified
Description:
Application form for obtaining or renewing an operating plan for the use of agricultural compounds under a regulatory exemption for research, testing, and teaching/training purposes in New Zealand.
Year:
2023
Region / City:
New Zealand
Theme:
Biosecurity, Agricultural Compounds, Veterinary Medicines
Document Type:
Guideline
Organization:
Ministry for Primary Industries (MPI)
Author:
Ministry for Primary Industries (MPI)
Target Audience:
Importers of agricultural compounds and veterinary medicines
Period of Validity:
Indefinite
Approval Date:
N/A
Date of Changes:
N/A
Year:
2024
Region / City:
Ekurhuleni, South Africa
Subject:
Disaster and Emergency Management Services
Document Type:
Formal Written Price Quotation
Organization:
City of Ekurhuleni
Author:
H. Van Schalkwyk
Target Audience:
Bidders / Service Providers
Period of Validity:
Until Closing Date of Bid Submission
Approval Date:
March 2024
Amendment Date:
December 14, 2023
Year:
2019
Region / city:
EU
Topic:
Mercury regulation
Document type:
Guidance document
Organization / institution:
Department for Business, Energy and Industrial Strategy (BEIS)
Author:
Unknown
Target audience:
Industry professionals, regulatory authorities
Period of validity:
Ongoing
Approval date:
May 2019
Amendment date:
May 2019
Year:
2013
Region / City:
Not specified
Topic:
Science Laboratory
Document Type:
Lab Review
Author:
Emily
Target Audience:
Not specified
Period of Action:
Not specified
Approval Date:
Not specified
Date of Changes:
Not specified
Year:
[DRAFT]
Region / City:
[not provided]
Subject:
Photochemical Assessment Monitoring Stations (PAMS) VOC Analysis
Document Type:
Standard Operating Procedure
Agency / Institution:
EPA
Author:
[not provided]
Target Audience:
Instrument operators trained for the procedure
Validity Period:
[not provided]
Approval Date:
[not provided]
Modification Date:
[not provided]
Version:
1.0
Date:
January 2020
Document type:
Standard operating procedure
Program:
Photochemical Assessment Monitoring Station (PAMS) Network
Organization:
U.S. Environmental Protection Agency
Regulatory reference:
40 CFR Part 58 Appendix D, Section 5h
Related method:
EPA Compendium Method TO-11A
Analytes:
Carbonyl compounds
Sampling media:
DNPH-impregnated silica gel cartridges
Analytical technique:
HPLC or UHPLC with ultraviolet detection
Detection wavelength:
Approximately 360 nm
Target compounds:
Formaldehyde, acetaldehyde
Optional compounds:
Acetone, benzaldehyde, additional listed carbonyls
Reporting system:
EPA Air Quality System (AQS)
Storage conditions:
Refrigerated and protected from light
Extraction solvent:
Acetonitrile
Sample holding time:
14 days before extraction
Analysis holding time:
30 days after extraction
Laboratory scope:
Analysis only; field collection addressed in companion SOP
Quality control elements:
Method blanks, field blanks, laboratory control samples, calibration verification
Year:
2020
Region / City:
Research Triangle Park, NC
Topic:
Air Quality Monitoring, Quality Assurance
Document Type:
Quality Assurance Project Plan (QAPP)
Organization:
U.S. Environmental Protection Agency, Office of Air Quality Planning and Standards
Author:
U.S. Environmental Protection Agency
Target Audience:
Monitoring agencies, air quality professionals
Effective Period:
Ongoing
Approval Date:
August 2020
Modification Date:
Not specified
Year:
2026
Region / City:
Global
Topic:
Antimalarial drug discovery, Plasmodium falciparum
Document Type:
Research Paper
Organization / Institution:
Not specified
Author:
Abigail Obuobi
Target Audience:
Researchers, Pharmaceutical Developers
Period of validity:
N/A
Date of approval:
N/A
Date of changes:
N/A