70-29-1 Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 70-29-1 |
| Product name | 70-29-1 |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial Grade |
| Packaging | 25L/drum |
| Sample | Test Samples Available (Click to Request Samples) |
| COA | View COA |
| Price | Get Quote |
| Supply Type | Bulk / Contract manufacturing / OEM |
| Shipping | FCL / LCL available |
| Payment Terms | Support FOB \ CIF \ EXW quotations, and accept Letter of Credit (L/C). |
| Manufacturer | Greenrock Chemical(China Factory) |
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Documents We Provide for 70-29-1
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 70-29-1 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 70-29-1
| Industry | Application | Process |
|---|---|---|
| Pharmaceutical Chemicals | Pharmaceutical Intermediates | Used as a thiomethylation reagent in the synthesis of antibiotics (e.g., cephalosporins) and other sulfur-containing drug molecules. |
| Organic Synthesis | Reducing Agent | Applied to selectively reduce specific organic functional groups, leveraging its mild reducing properties. |
| Organic Synthesis | Alkylating Agent | Introduced into organic synthesis reactions to incorporate ethylthio or ethylsulfinyl groups. |
| Chemical Manufacturing | Raw Material for Sulfide Synthesis | Employed in the production of diethyl sulfide and other sulfide compounds. |
| Fine Chemicals | Synthesis of Highly Toxic Compounds and Solvents | Serves as a precursor or reaction component in the manufacture of specific specialty chemicals. |
Manufacturing Quality Control of 70-29-1
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Gas Chromatography (GC) with FID detection | Quantitative determination based on peak area comparison against a certified reference standard using a calibrated column and carrier gas. |
| Water Content | Karl Fischer Titration | Electrochemical titration where iodine reacts stoichiometrically with water in anhydrous methanol/pyridine medium; endpoint detected amperometrically. |
| Acidity (as H2SO4) | Acid-Base Titration with NaOH | Neutralization of acidic impurities using standardized sodium hydroxide solution and phenolphthalein indicator or potentiometric endpoint detection. |
| Residue on Ignition | Gravimetric Analysis | Heating sample to 700-800 C in a platinum crucible until constant weight; residue mass expressed as percentage of original sample. |
| Color (APHA) | Visual Comparison or Spectrophotometric Measurement | Comparison of sample color against APHA platinum-cobalt standard solutions or measurement of absorbance at 455 nm in a 10 cm cell. |
| Density at 20 C | Oscillating U-tube Densitometry | Measurement of oscillation period of a filled U-shaped glass tube, correlated to density via calibration with water and air. |
| Refractive Index at 20 C | Refractometry | Determination of refractive index by measuring critical angle of total internal reflection using a calibrated Abbe refractometer. |
| Chloride Impurity | Ion Chromatography (IC) with Conductivity Detection | Separation of chloride ions on an anion-exchange column followed by quantitative detection via suppressed conductivity. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) after wet digestion | Sample digested with nitric and sulfuric acids; lead quantified by flame or graphite furnace AAS at 283.3 nm. |
| Non-Volatile Residue | Evaporation and Gravimetry | Evaporation of specified sample volume at 105 C to dryness; residue weighed and reported as mg/100 mL. |
| Distillation Range | Simple Distillation per ASTM D86 | Measurement of initial boiling point, 10/50/90% distilled temperatures, and final boiling point using standardized distillation apparatus. |
| Sulfur Compounds (Total Sulfur) | Combustion IC or UV Fluorescence Detection | High-temperature combustion converts sulfur to SO2, detected either by ion chromatography or UV fluorescence emission at 214 nm. |
Technical Specifications of 70-29-1
| Test Item | Specification |
|---|---|
| Appearance | Colorless liquid |
| Purity | >=98.0% (GC-MS) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Refractive Index (n20/D) | 1.420–1.430 |
| Relative Density (20°C/25°C) | 1.12–1.14 g/cm³ |
| Odor | Characteristic sulfide-like odor |
Specifications vary by industry. Reach out to our technical experts for a COA tailored specifically to your application. Email:selse@GRchemical.com
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Download COA of 70-29-1
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 70-29-1
Packaging of 70-29-1
Industrial 70-29-1 Procurement FAQ
1. How do you ensure product quality consistency?
We rely on a mature China-based manufacturing system and implement strict batch control and quality inspection for every shipment. Our production process complies with ISO 9001 standards, and a COA is provided for each batch to ensure consistent and reliable quality.
2. Do you offer competitive pricing for bulk orders?
Yes, as a China-based manufacturer and bulk supplier, we provide tiered pricing based on order volume. We support FOB and CIF quotations, as well as L/C payment terms for large transactions to meet international trade requirements.
3. Can you support large-volume or long-term supply?
We have stable production capacity and a well-established supply chain, enabling continuous bulk supply. We support ton-level and container-level orders, as well as long-term cooperation projects.
4. What is your typical lead time?
For in-stock products, shipment can be arranged within 1–3 days. For bulk packaging or customized orders, lead time depends on the specific quantity and production schedule.
5. What documents do you provide?
We can provide complete documentation upon request, including COA, SDS, TDS, and other compliance certificates, meeting industrial procurement and export requirements.
6. Can you customize product specifications or packaging?
Yes, we support customization of parameters such as purity, impurities, residual solvents, and heavy metals. We also offer various bulk packaging options, including 25kg bags, drums, and IBC tanks, suitable for industrial applications and transportation.
7. What shipping options do you support?
We support both FCL (Full Container Load) and LCL (Less than Container Load) shipments, and can flexibly arrange logistics solutions based on order size to meet bulk chemical export needs.
8. Do you provide technical or application support?
Yes, we provide basic application guidance and technical support based on industry experience to help customers optimize product usage.
9. How do you handle compliance and export regulations?
We are familiar with international trade and export regulations, ensuring all products comply with relevant requirements. We also provide complete documentation to support smooth customs clearance and global delivery.
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