Freiberg Hide Powder

The gravimetric analysis of vegetable tanning agents and extracts

Properties
pH 5.0 – 7.0 
Ash contents < 1.2 % 
Cr2O3 content < 0.8 % 
Blind value (PROCTER) < 10.0 mg 


Durability:
3 years, storage at 15 – 18 °C and a relative air humidity ranging from 55 to 70 %

Freiberg hide powder for the gravimetric analysis of vegetable tanning agents and extracts is produced at Freiberg since 1905. In the past, hundreds of proposals for the tannin analysis were made and rejected. Up to our days, only two methods were successful in the world. While the shaking method is widely used in the anglo-american sphere, the filter-bell method is preferred in Europe. Both methods require a standard absorbent of constant quality. Hide powder is offered low-chromed (Freiberg hide powder) or untanned, as white hide powder (only on request). White hide powder is used for pharmaceutical purposes, e. g. for detanning of vegetable extracts. Low-chromed hide powder is used for the analysis of vegetable tanning materials. In tablet form it can also be used for a quick test to prove the efficiency of leather auxiliaries (tanning agents, dyestuffs, greases, etc.).

Literature:
Küntzel A.: Gerbereichemisches Taschenbuch.
Verlag von Theodor Steinkopff, Dresden und Leipzig, 1955
Küntzel A.: Die quantitative Gerbstoffanalyse nach dem Filterverfahren.
In: Das Leder 5 (1954) 2, S.28-31
A.L.C.A.: Method for the analysis of vegetable tanning materials.
In: JALCA 49 (1954) 3, S. 174-207
Oertel H.: Model experiments on hide powder.
In: Proccedings of the IULTCS Centenary Congress, London, 11-14 September 1997
Trommer B.: Seit 88 Jahren Freiberger Hautpulver.
In: Leder und Häutemarkt 46 (1994) 24, S. 13

Prices valid as at January 01, 2015

Amount Prices in EUR
200 g-box 156,50
800 g-box 304,50
2 kg-box 720,00
5 kg-box (sale within EU only) 1.657,00

Maximum order quantity: 15 kg

The prices mentioned are net prices and do not include transportation charges, duties, taxes and fees taken in payment transactions.
To foreign customers we only supply after pre-payment of invoice.

Payment
Payment is made by cheque or SWIFT (code: DEUT DE 8 C-879). Our international account no. (IBAN) is DE29 8707 0000 0220 0376 00.

Please do not pay before you received an invoice!

National Shipping

In Germany we ship by DHL.
Transportation and packing charges:
- up to 5.000g per parcel ... 10,00 €
- up to 10.000g per parcel ... 15,00 €

International Shipping

To customers in European Union countries and Switzerland we ship by DHL.
Transportation and packing charges:
- up to   5.000g per parcel ... 20,00 €
- up to 10.000g per parcel ... 30,00 €

To customers in other european countries and world-wide we ship our products by FedEx.
    - recipients FedEx Acc. No. is needed
    - payment of transportation charges, duties and taxes by recipient

On explicit request we also ship by alternative Parcel Services e.g. UPS, TNT, or other method on customer‘s risk.
    - recipients Parcel Service Acc. No. is needed
    - payment of transportation charges, duties and taxes by recipient

The consignment is packed in one- or two-layer corrugated-cardboard boxes and sent off as premium parcel (express or air freight). The customs tariff no. for Freiberg hide powder is 350 400 90. We refer to General Terms.

Order form

Contact:
Phone: +49 (0)3731 366-165
Fax: +49 (0)3731 366-130
E-Mail: michael.meyer@filkfreiberg.de