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Basic Chrome Sulfate
Basic Chromium Sulfate (BCS) – Premium Tanning Agent & Dye Fixative for Leather Industry
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Product Name: Basic Chrome Sulfate
Product Details:
1.Chemical Formula: Cr(OH)m(SO4)n·xH2O
2.Appearance: Blackish green powder
3.Standard: GB/T24331-2009
4.Features: It’s dissolves in water quickly. It has good solvability. Contains high tanning compound and has very strong moisture absorption.
5.Applications: It is mainly used in tanning leather, mordant, trivalent chromium plating. It can be used as a reactive black dyes and dye industry produce hydrogen chrome oxide materials.
6.Packaging: 25kg bags, supporting ton bags.
Product parameters
| ITEM | INDEX | |||
| Normal type | Masked type | Masked crosslinked type | Masked self-alkalization type | |
| Basic chromium sulfate (in Cr₂O₃)/% | ≥24.0 | ≥23.0 | ≥22.0 | ≥19.0 |
| Cr(Ⅵ)/(mg/kg) | ≤2.0 | |||
| Basicity(B)/% | 33±2 | 34±2 | 39±2 | / |
| pH | 2.0~4.0 | 2.0~4.0 | 2.5~4.0 | 2.5~4.5 |
| Water insoluble matter/% | ≤0.5 | / | ||
| Fe/(mg/kg) | ≤100.0 | |||
| Hg/(mg/kg) | ≤0.1 | |||
| As/(mg/kg) | ≤1.0 | |||
| Pb/(mg/kg) | ≤1.0 | |||
FAQ
Q: Are you a factory or a trading company?
A: We are a factory with our own production lines. And we cooperate with several chemical factories, and can provide one - stop purchasing services.
Q: Can I visit the factory?
A: Yes, you are warmly welcome.
Q: What is the Minimum Order Quantity (MOQ)?
A: The MOQ for standard products is 1 FCL (Full Container Load), and we can provide 500g samples for free. For customized products, it will be adjusted according to the formula. Please consult our sales representatives for details.
Q: Can you provide customized packaging?
A: We support various customized packaging, such as ton bags, moisture - proof vacuum packaging, labeled packaging, etc. Additional packaging fees will be calculated according to the actual cost.
Q: What are the payment methods?
A: We accept T/T (50% advance payment + the balance according to the contract agreement), L/C (only from well - known banks, sight and irrevocable), and Alibaba Credit Insurance Orders.
Q: How long is the production cycle of an order?
A: After the advance payment is received, it will take about 3 - 20 days depending on the order quantity.
Q: What are the transportation methods?
A: We support sea freight, air freight, and international express delivery. Real - time logistics tracking will be provided.
Q: Can I appoint a freight forwarder company?
A: We support customers in appointing freight forwarders, but they need to have the qualification for chemical transportation. It is recommended to use our professional cooperative freight forwarders.
