Поставка высококачественного реагента протеиназы K CAS 39450-01-6
21,00 $
Поставка метилкрасный высокой чистоты CAS 493 52 7
- Категория: Chemical Reagent Products >>>
- Поставщик: Shanghai Lonwin Chemical Co. Ltd.
Сохранить в закладки 1600240748182:
Описание и отзывы
Характеристики
Product Description
Item | Specifications | ||||||
maximum absorption wavelength,λ1 (PH4.5),nm | 523~528 | ||||||
λ2(PH6.2),nm | 427~437 | ||||||
Mass absorption coefficient,λ1 (PH4.5),L/(cm·g) ≥ | 130 | ||||||
λ2(PH6.2),L/(cm·g) ≥ | 70 | ||||||
PH domain color | 4.5 (red) to 6.2 (yellow) | ||||||
Ethanol dissolution test | Qualified | ||||||
Loss on drying≤ | 1 | ||||||
Residue on ignition (Sulfate)≤ | 0.2 | ||||||
Methyl Red Usage
Live protozoan staining; acid-base indicator, pH change range from 4.4 (red) to 6.2 (yellow); titration of ammonia, weak organic bases and alkaloids, but not suitable for organic acids other than oxalic acid and picric acid; can be combined with Chemicalbook Bromocresol green and methylene blue constitute a mixed indicator to shorten the color range and increase the sensitivity of the color change; adsorption indicator for precipitation titration, such as thorium nitrate titration of fluoride ion; verification of free chlorine, chlorite and other oxidants…
Live protozoan staining; acid-base indicator, pH change range from 4.4 (red) to 6.2 (yellow); titration of ammonia, weak organic bases and alkaloids, but not suitable for organic acids other than oxalic acid and picric acid; can be combined with Chemicalbook Bromocresol green and methylene blue constitute a mixed indicator to shorten the color range and increase the sensitivity of the color change; adsorption indicator for precipitation titration, such as thorium nitrate titration of fluoride ion; verification of free chlorine, chlorite and other oxidants…
Company Profile
Q1 Can i get some samples?
A1 Yes, we can supply the free sample, but the shipping cost be paid by our customers.
Q2 How to start orders or make payments?
A2 Proforma invoice will be sent first after confirmation of order, enclosed our bank information.
A1 Yes, we can supply the free sample, but the shipping cost be paid by our customers.
Q2 How to start orders or make payments?
A2 Proforma invoice will be sent first after confirmation of order, enclosed our bank information.
Payment by T/T, Western Union or Paypal or Escrow(Alibaba).
Q3 How to confirm the Product Quality before placing orders?
A3 You can get free samples for some products,you only need to pay the shipping cost or arrange
Q3 How to confirm the Product Quality before placing orders?
A3 You can get free samples for some products,you only need to pay the shipping cost or arrange
a courier to us and take the samples. You can send us your product specifications and requests,we
will manufacture the products according to your requests.
Q4 What’s your MOQ?
A4 Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.
Q5 How about delivery leadtime?
A5 Delivery lead time: About 3-5 days after payment confirmed. (Chinese holiday not included)
Q6 Is there a discount?
A6 Different quantity has different discount.
Q7 How do you treat quality complaint?
A7 First of all, our quality control will reduce the quality problem to near zero. If there is a real quality problem caused by us, we will send you free goods for replacement or refund your loss.
Q8 How to contact us ?
A9 You can choose your interested products and send inquiry to us.
A4 Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.
Q5 How about delivery leadtime?
A5 Delivery lead time: About 3-5 days after payment confirmed. (Chinese holiday not included)
Q6 Is there a discount?
A6 Different quantity has different discount.
Q7 How do you treat quality complaint?
A7 First of all, our quality control will reduce the quality problem to near zero. If there is a real quality problem caused by us, we will send you free goods for replacement or refund your loss.
Q8 How to contact us ?
A9 You can choose your interested products and send inquiry to us.
Contact us
Shanghai Lonwin Chemical Co., Ltd.
Email:sales@lonwinchem.com
Tel/What's APP/Wechat:008613585982692
QQ:738478385
Email:sales@lonwinchem.com
Tel/What's APP/Wechat:008613585982692
QQ:738478385
Похожие товары
8 мин Быстрый пластиковый мини-комплект
Быстрый пластиковый мини-набор для подготовки 8 минут, высокочистый Плазмид
62,42 $ - 72,83 $
Лучшая цена 1H,1H,2H, 2h-perfluorooctiltriethoxysilane
10,00 $
Тиосемикарбазид КАС 79-19-6
15,00 $
Молекулярная биология синяя GN100bp DNA лестница III
90,00 $ - 100,00 $
Триптон, CAS:73049-73-7
Фосфонитрилхлорид тример CAS 940-71-6
30,00 $
Новые поступления
Новинки товаров от производителей по оптовым ценам
Прямая Продажа с фабрики 65 см Модернизированный подвесный стерео голографический проектор светодиодный вентилятор высокой четкости экран 3D дисплей
155-185 $
Оригинальная популярная клавиатура для рабочего места Genos2 с 76 клавишами
200 $
Умный цифровой электронный ручной инфракрасный лазерный термометр для ветеринарного и медицинского мониторинга человека
5-10 $
Цифровой инфракрасный лазерный термометр для взрослых
5,90-6,70 $
Командная версия 24-скоростной ультралегкий карбоновый шоссейный велосипед Гоночная рама и комплект колес
Четырехцилиндровый двигатель CA6110/125G5 части клапана 1007011-A013-0000 1007016-A013-0000
0,50 $
55203781 46740344 55181201 55266538 зубчатый шкив коленчатого вала для FIAT 500 BRAVA BRAVO DOBLO PANDA PUNT0
3-3,70 $
